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    产品型号S-93C46B_1的Datasheet PDF文件预览

    S-93C46B/56B/66B  
    3-WIRE SERIAL E2PROM  
    www.sii-ic.com  
    © Seiko Instruments Inc., 2002-2010  
    Rev.7.0_00  
    The S-93C46B/56B/66B is a 3-wire, high speed, low current consumption, 1/2/4 K-bit serial E2PROM with a wide  
    operating voltage range. It is organized as 64-word × 16-bit, 128-word × 16-bit, 256-word × 16-bit, respectively. Each is  
    capable of sequential read, at which time addresses are automatically incremented in 16-bit blocks.  
    The communication method is by the Microwire bus.  
    „ Features  
    • Low current consumption  
    Standby:  
    Read:  
    1.5 μA Max. (VCC = 5.5 V)  
    0.8 mA Max. (VCC = 5.5 V)  
    0.4 mA Max. (VCC = 2.5 V)  
    1.8 to 5.5 V  
    • Wide operating voltage range  
    • Sequential read capable  
    Read:  
    Write:  
    2.7 to 5.5 V  
    • Write protect function during the low power supply voltage  
    • Function to protect against write due to erroneous instruction recognition  
    • Endurance:  
    • Data retention:  
    106 cycles/word*1 (at +85°C)  
    100 years (at +25°C)  
    20 years (at +85°C)  
    1 K-bit  
    2 K-bit  
    4 K-bit  
    • S-93C46B:  
    • S-93C56B:  
    • S-93C66B:  
    • Lead-free, Sn 100%, halogen-free*2  
    *1. For each address (Word: 16-bit)  
    *2. Refer to “„ Product Name Structure” for details.  
    „ Packages  
    • 8-Pin DIP  
    • 8-Pin SOP (JEDEC)  
    • 8-Pin TSSOP  
    • SNT-8A  
    • TMSOP-8  
    Caution This product is intended to use in general electronic devices such as consumer electronics, office  
    equipment, and communications devices. Before using the product in medical equipment or  
    automobile equipment including car audio, keyless entry and engine control unit, contact to SII is  
    indispensable.  
    Seiko Instruments Inc.  
    1
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    „ Pin Configurations  
    Table 1  
    8-Pin DIP  
    Top view  
    Pin No.  
    Symbol  
    CS  
    Description  
    Chip select input  
    1
    2
    3
    4
    5
    6
    7
    8
    VCC  
    NC  
    CS  
    1
    2
    3
    4
    8
    7
    6
    5
    SK  
    Serial clock input  
    Serial data input  
    Serial data output  
    Ground  
    SK  
    DI  
    DI  
    TEST  
    GND  
    DO  
    GND  
    TEST*1  
    NC  
    DO  
    Test  
    No connection  
    Power supply  
    VCC  
    Figure 1  
    *1. Connect to GND or VCC  
    .
    Even if this pin is not connected, performance is not affected so  
    long as the absolute maximum rating is not exceeded.  
    S-93C46BD0I-D8S1G  
    S-93C56BD0I-D8S1G  
    S-93C66BD0I-D8S1G  
    Table 2  
    8-Pin SOP(JEDEC)  
    Top view  
    Pin No.  
    Symbol  
    CS  
    Description  
    Chip select input  
    1
    2
    3
    4
    8
    7
    6
    5
    1
    2
    3
    4
    5
    6
    7
    8
    CS  
    SK  
    DI  
    VCC  
    NC  
    SK  
    Serial clock input  
    Serial data input  
    Serial data output  
    Ground  
    DI  
    TEST  
    GND  
    DO  
    GND  
    TEST*1  
    NC  
    DO  
    Test  
    No connection  
    Power supply  
    VCC  
    Figure 2  
    *1. Connect to GND or VCC  
    .
    Even if this pin is not connected, performance is not affected so  
    long as the absolute maximum rating is not exceeded.  
    S-93C46BD0I-J8T1x  
    S-93C56BD0I-J8T1x  
    S-93C66BD0I-J8T1x  
    2
    Seiko Instruments Inc.  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    Table 3  
    8-Pin SOP(JEDEC) (Rotated)  
    Top view  
    Pin No.  
    Symbol  
    NC  
    Description  
    No connection  
    1
    8
    7
    6
    5
    NC  
    VCC  
    CS  
    1
    2
    3
    4
    5
    6
    7
    8
    TEST  
    GND  
    DO  
    VCC  
    CS  
    Power supply  
    Chip select input  
    Serial clock input  
    Serial data input  
    Serial data output  
    Ground  
    2
    3
    4
    SK  
    DI  
    SK  
    DI  
    DO  
    GND  
    TEST*1  
    Test  
    Figure 3  
    *1. Connect to GND or VCC  
    .
    Even if this pin is not connected, performance is not affected so long  
    as the absolute maximum rating is not exceeded.  
    S-93C46BR0I-J8T1x  
    S-93C56BR0I-J8T1x  
    S-93C66BR0I-J8T1x  
    Table 4  
    8-Pin TSSOP  
    Top view  
    Pin No.  
    Symbol  
    CS  
    Description  
    Chip select input  
    1
    2
    3
    4
    5
    6
    7
    8
    1
    2
    3
    4
    8
    7
    6
    5
    VCC  
    NC  
    TEST  
    GND  
    CS  
    SK  
    DI  
    SK  
    Serial clock input  
    Serial data input  
    Serial data output  
    Ground  
    DI  
    DO  
    DO  
    GND  
    TEST*1  
    NC  
    Test  
    Figure 4  
    No connection  
    Power supply  
    VCC  
    *1. Connect to GND or VCC  
    .
    S-93C46BD0I-T8T1x  
    S-93C56BD0I-T8T1x  
    S-93C66BD0I-T8T1x  
    Even if this pin is not connected, performance is not affected so long  
    as the absolute maximum rating is not exceeded.  
    Seiko Instruments Inc.  
    3
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    Table 5  
    SNT-8A  
    Top view  
    Pin No.  
    Symbol  
    CS  
    Description  
    Chip select input  
    CS  
    SK  
    DI  
    1
    2
    3
    4
    8
    7
    6
    5
    VCC  
    NC  
    1
    2
    3
    4
    5
    6
    7
    8
    SK  
    Serial clock input  
    Serial data input  
    Serial data output  
    Ground  
    DI  
    TEST  
    GND  
    DO  
    DO  
    GND  
    TEST*1  
    NC  
    Test  
    No connection  
    Power supply  
    Figure 5  
    VCC  
    *1. Connect to GND or VCC  
    .
    S-93C46BD0I-I8T1x  
    S-93C56BD0I-I8T1x  
    S-93C66BD0I-I8T1x  
    Even if this pin is not connected, performance is not affected so long as  
    the absolute maximum rating is not exceeded.  
    Remark See Dimensions for details of the package drawings.  
    Table 6  
    TMSOP-8  
    Top view  
    Pin No.  
    Symbol  
    CS  
    Description  
    Chip select input  
    1
    2
    3
    4
    5
    6
    7
    8
    1
    2
    3
    4
    8
    CS  
    SK  
    DI  
    VCC  
    SK  
    Serial clock input  
    Serial data input  
    Serial data output  
    Ground  
    7
    6
    5
    NC  
    DI  
    TEST  
    GND  
    DO  
    DO  
    GND  
    TEST*1  
    NC  
    Test  
    No connection  
    Power supply  
    VCC  
    Figure 6  
    *1. Connect to GND or VCC  
    .
    Even if this pin is not connected, performance is not affected so long  
    as the absolute maximum rating is not exceeded.  
    S-93C46BD0I-K8T3U  
    S-93C56BD0I-K8T3U  
    S-93C66BD0I-K8T3U  
    Remark 1. See Dimensions for details of the package drawings.  
    2. x: G or U  
    3. Please select products of environmental code = U for Sn 100%, halogen-free products.  
    4
    Seiko Instruments Inc.  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    „ Block Diagram  
    VCC  
    GND  
    Address  
    decoder  
    Memory array  
    DO  
    Data register  
    Output buffer  
    DI  
    Mode decode logic  
    CS  
    Clock pulse  
    monitoring circuit  
    Voltage detector  
    Clock generator  
    SK  
    Figure 7  
    Seiko Instruments Inc.  
    5
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    „ Instruction Sets  
    1. S-93C46B  
    Table 7  
    Operation  
    Code  
    Instruction  
    Start Bit  
    Address  
    Data  
    SK input clock  
    READ (Read data)  
    WRITE (Write data)  
    ERASE (Erase data)  
    WRAL (Write all)  
    1
    1
    1
    1
    1
    1
    1
    1
    2
    1
    0
    1
    0
    0
    0
    0
    3
    0
    1
    1
    0
    0
    0
    0
    4
    A5  
    A5  
    A5  
    0
    5
    6
    A3  
    A3  
    A3  
    x
    7
    A2  
    A2  
    A2  
    x
    8
    A1  
    A1  
    A1  
    x
    9
    10 to 25  
    D15 to D0 Output*1  
    A4  
    A4  
    A4  
    1
    A0  
    A0 D15 to D0 Input  
    A0  
    x
    ⎯
    D15 to D0 Input  
    ERAL (Erase all)  
    1
    0
    x
    x
    x
    x
    ⎯
    ⎯
    ⎯
    EWEN (Write enable)  
    EWDS (Write disable)  
    1
    1
    x
    x
    x
    x
    0
    0
    x
    x
    x
    x
    *1. When the 16-bit data in the specified address has been output, the data in the next address is output.  
    Remark x: Don’t care  
    2. S-93C56B  
    Table 8  
    Operation  
    Code  
    Instruction  
    Start Bit  
    Address  
    Data  
    SK input clock  
    1
    1
    1
    1
    1
    1
    1
    1
    2
    3
    0
    1
    1
    0
    0
    0
    0
    4
    x
    x
    x
    5
    6
    7
    8
    9
    10 11  
    12 to 27  
    D15 to D0 Output*1  
    A6 A5 A4 A3 A2 A1 A0  
    A6 A5 A4 A3 A2 A1 A0  
    A6 A5 A4 A3 A2 A1 A0  
    READ (Read data)  
    WRITE (Write data)  
    ERASE (Erase data)  
    WRAL (Write all)  
    1
    0
    1
    0
    0
    0
    0
    D15 to D0 Input  
    ⎯
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    0
    1
    1
    0
    1
    0
    1
    0
    D15 to D0 Input  
    ERAL (Erase all)  
    ⎯
    ⎯
    ⎯
    EWEN (Write enable)  
    EWDS (Write disable)  
    *1. When the 16-bit data in the specified address has been output, the data in the next address is output.  
    Remark x: Don’t care  
    3. S-93C66B  
    Table 9  
    Operation  
    Code  
    Instruction  
    Start Bit  
    Address  
    Data  
    SK input clock  
    READ (Read data)  
    WRITE (Write data)  
    ERASE (Erase data)  
    WRAL (Write all)  
    1
    1
    1
    1
    1
    1
    1
    1
    2
    3
    0
    1
    1
    0
    0
    0
    0
    4
    5
    6
    7
    8
    9
    10 11  
    12 to 27  
    D15 to D0 Output*1  
    A7 A6 A5 A4 A3 A2 A1 A0  
    A7 A6 A5 A4 A3 A2 A1 A0  
    A7 A6 A5 A4 A3 A2 A1 A0  
    1
    0
    1
    0
    0
    0
    0
    D15 to D0 Input  
    ⎯
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    x
    0
    1
    1
    0
    1
    0
    1
    0
    D15 to D0 Input  
    ERAL (Erase all)  
    ⎯
    ⎯
    ⎯
    EWEN (Write enable)  
    EWDS (Write disable)  
    *1. When the 16-bit data in the specified address has been output, the data in the next address is output.  
    Remark x: Don’t care  
    6
    Seiko Instruments Inc.  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    „ Absolute Maximum Ratings  
    Table 10  
    Symbol  
    Item  
    Power supply voltage  
    Input voltage  
    Ratings  
    −0.3 to +7.0  
    −0.3 to VCC +0.3  
    −0.3 to VCC  
    −40 to +105  
    −65 to +150  
    Unit  
    V
    VCC  
    VIN  
    V
    Output voltage  
    VOUT  
    Topr  
    Tstg  
    V
    Operating ambient temperature  
    Storage temperature  
    °C  
    °C  
    Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical  
    damage. These values must therefore not be exceeded under any conditions.  
    „ Recommended Operating Conditions  
    Table 11  
    (Ta = −40 to +85°C unless otherwise specified)  
    Item  
    Symbol  
    VCC  
    Conditions  
    Min.  
    1.8  
    Max.  
    5.5  
    Unit  
    V
    READ, EWDS  
    WRITE, ERASE,  
    WRAL, ERAL, EWEN  
    VCC = 4.5 to 5.5 V  
    VCC = 2.7 to 4.5 V  
    VCC = 1.8 to 2.7 V  
    VCC = 4.5 to 5.5 V  
    Power supply voltage  
    2.7  
    5.5  
    V
    2.0  
    0.8 × VCC  
    0.8 × VCC  
    0.0  
    VCC  
    VCC  
    V
    V
    V
    V
    V
    V
    High level input voltage  
    Low level input voltage  
    VIH  
    VIL  
    VCC  
    0.8  
    VCC = 2.7 to 4.5 V  
    VCC = 1.8 to 2.7 V  
    0.0  
    0.2 × VCC  
    0.15 × VCC  
    0.0  
    „ Pin Capacitance  
    Table 12  
    (Ta = +25°C, f = 1.0 MHz, VCC = 5.0 V)  
    Item  
    Input Capacitance  
    Output Capacitance  
    Symbol  
    CIN  
    COUT  
    Conditions  
    VIN = 0 V  
    VOUT = 0 V  
    Min.  
    ⎯
    ⎯
    Max.  
    8
    Unit  
    pF  
    10  
    pF  
    „ Endurance  
    Table 13  
    Item  
    Symbol  
    NW  
    Operating Ambient Temperature  
    Min.  
    106  
    Max.  
    Unit  
    cycles/word*1  
    Endurance  
    −40 to +85°C  
    ⎯
    *1. For each address (Word: 16 bits)  
    „ Data Retention  
    Table 14  
    Item  
    Symbol  
    Operation Ambient Temperature  
    +25°C  
    Min.  
    100  
    20  
    Max.  
    ⎯
    ⎯
    Unit  
    year  
    year  
    Data retention  
    −
    −40 to +85°C  
    Seiko Instruments Inc.  
    7
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    „ DC Electrical Characteristics  
    Table 15  
    (Ta = −40 to +85°C unless otherwise specified)  
    VCC = 4.5 to 5.5 V VCC = 2.5 to 4.5 V VCC = 1.8 to 2.5 V  
    Item  
    Symbol  
    ICC1  
    Conditions  
    DO no load  
    Unit  
    Min.  
    Max.  
    Min.  
    Max.  
    Min.  
    Max.  
    Current consumption  
    (READ)  
    ⎯
    0.8  
    ⎯
    0.5  
    ⎯
    0.4  
    mA  
    Table 16  
    (Ta = −40 to +85°C unless otherwise specified)  
    VCC = 4.5 to 5.5 V  
    VCC = 2.7 to 4.5 V  
    Item  
    Symbol  
    ICC2  
    Conditions  
    DO no load  
    Unit  
    Min.  
    Max.  
    Min.  
    Max.  
    Current consumption  
    (WRITE)  
    ⎯
    2.0  
    ⎯
    1.5  
    mA  
    Table 17  
    (Ta = −40 to +85°C unless otherwise specified)  
    VCC VCC VCC  
    4.5 to 5.5 V 2.5 to 4.5 V  
    =
    =
    =
    Item  
    Symbol  
    Conditions  
    Unit  
    1.8 to 2.5 V  
    Min.  
    Max.  
    Min.  
    Max.  
    Min. Max.  
    Standby current  
    consumption  
    Input leakage  
    current  
    CS = GND, DO = Open,  
    Other inputs to VCC or GND  
    ISB  
    ILI  
    ILO  
    VOL  
    ⎯
    1.5  
    1.0  
    1.0  
    ⎯
    1.5  
    1.0  
    1.0  
    ⎯
    ⎯
    ⎯
    1.5  
    1.0  
    1.0  
    μA  
    μA  
    μA  
    VIN = GND to VCC  
    VOUT = GND to VCC  
    ⎯
    ⎯
    ⎯
    ⎯
    Output leakage  
    current  
    Low level output  
    voltage  
    IOL = 2.1 mA  
    IOL = 100 μA  
    ⎯
    ⎯
    2.4  
    0.4  
    0.1  
    ⎯
    ⎯
    ⎯
    ⎯
    ⎯
    ⎯
    ⎯
    0.1  
    ⎯
    ⎯
    ⎯
    ⎯
    ⎯
    ⎯
    ⎯
    0.1  
    ⎯
    ⎯
    ⎯
    V
    V
    V
    V
    V
    IOH = −400 μA  
    IOH = −100 μA  
    IOH = −10 μA  
    Only when write  
    disable mode  
    High level output  
    voltage  
    VOH  
    VCC− 0.3  
    VCC− 0.2  
    VCC− 0.3  
    VCC− 0.2  
    ⎯
    VCC− 0.2  
    Write enable latch  
    data hold voltage  
    VDH  
    1.5  
    ⎯
    1.5  
    ⎯
    1.5  
    ⎯
    V
    8
    Seiko Instruments Inc.  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    „ AC Electrical Characteristics  
    Table 18 Measurement Conditions  
    Input pulse voltage 0.1 × VCC to 0.9 × VCC  
    Output reference voltage  
    Output load  
    0.5 × VCC  
    100 pF  
    Table 19  
    (Ta = −40 to +85°C unless otherwise specified)  
    VCC = 4.5 to 5.5 V VCC = 2.5 to 4.5 V VCC = 1.8 to 2.5 V  
    Item  
    CS setup time  
    Symbol  
    tCSS  
    Unit  
    Min.  
    Max.  
    Min.  
    Max.  
    Min.  
    Max.  
    0.2  
    0
    ⎯
    ⎯
    0.4  
    0
    ⎯
    ⎯
    1.0  
    0
    ⎯
    ⎯
    μs  
    μs  
    μs  
    μs  
    μs  
    μs  
    MHz  
    μs  
    μs  
    μs  
    CS hold time  
    tCSH  
    tCDS  
    tDS  
    CS deselect time  
    Data setup time  
    Data hold time  
    0.2  
    0.1  
    0.1  
    ⎯
    0
    ⎯
    ⎯
    ⎯
    0.4  
    2.0  
    ⎯
    ⎯
    0.15  
    0.15  
    0.2  
    0.2  
    0.2  
    ⎯
    0
    ⎯
    ⎯
    ⎯
    0.8  
    0.5  
    ⎯
    ⎯
    0.5  
    0.5  
    0.4  
    0.4  
    0.4  
    ⎯
    0
    ⎯
    ⎯
    ⎯
    2.0  
    0.25  
    ⎯
    ⎯
    1.0  
    1.0  
    tDH  
    Output delay time  
    Clock frequency*1  
    SK clock time “L” *1  
    SK clock time “H” *1  
    Output disable time  
    Output enable time  
    tPD  
    fSK  
    tSKL  
    tSKH  
    tHZ1, tHZ2  
    tSV  
    0.1  
    0.1  
    0
    0.5  
    0.5  
    0
    1.0  
    1.0  
    0
    0
    0
    0
    μs  
    *1. The clock cycle of the SK clock (frequency: fSK) is 1/fSK μs. This clock cycle is determined by a  
    combination of several AC characteristics, so be aware that even if the SK clock cycle time is minimized,  
    the clock cycle (1/fSK) cannot be made equal to tSKL(Min.) + tSKH(Min.).  
    Table 20  
    (Ta = −40 to +85°C unless otherwise specified)  
    VCC = 2.7 to 5.5 V  
    Item  
    Symbol  
    Unit  
    ms  
    Min.  
    Typ.  
    4.0  
    Max.  
    8.0  
    Write time  
    tPR  
    ⎯
    Seiko Instruments Inc.  
    9
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    *2  
    1/fSK  
    tCSS  
    tCDS  
    CS  
    tCSH  
    tSKH  
    tSKL  
    SK  
    tDS  
    tDH  
    tDS  
    tDH  
    DI  
    Valid data  
    Valid data  
    tPD  
    tPD  
    High-Z*1  
    High-Z  
    High-Z  
    DO  
    DO  
    tSV  
    tHZ2  
    (READ)  
    tHZ1  
    High-Z  
    (VERIFY)  
    *1. Indicates high impedance.  
    *2. 1/fSK is the SK clock cycle. This clock cycle is determined by a combination of several AC characteristics,  
    so be aware that even if the SK clock cycle time is minimized, the clock cycle (1/fSK) cannot be made equal  
    to tSKL(Min.) + tSKH(Min.).  
    Figure 8 Timing Chart  
    10  
    Seiko Instruments Inc.  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    „ Operation  
    All instructions are executed by inputting DI in synchronization with the rising edge of SK after CS goes high. An  
    instruction set is input in the order of start bit, instruction, address, and data.  
    Instruction input finishes when CS goes low. A low level must be input to CS between commands during tCDS  
    .
    While a low level is being input to CS, the S-93C46B/56B/66B is in standby mode, so the SK and DI inputs are  
    invalid and no instructions are allowed.  
    „ Start Bit  
    A start bit is recognized when the DI pin goes high at the rise of SK after CS goes high. After CS goes high, a start  
    bit is not recognized even if the SK pulse is input as long as the DI pin is low.  
    1. Dummy clock  
    SK clocks input while the DI pin is low before a start bit is input are called dummy clocks. Dummy clocks are  
    effective when aligning the number of instruction sets (clocks) sent by the CPU with those required for serial  
    memory operation. For example, when a CPU instruction set is 16 bits, the number of instruction set clocks  
    can be adjusted by inserting a 7-bit dummy clock for the S-93C46B and a 5-bit dummy clock for the S-  
    93C56B/66B.  
    2. Start bit input failure  
    • When the output status of the DO pin is high during the verify period after a write operation, if a high level is  
    input to the DI pin at the rising edge of SK, the S-93C46B/56B/66B recognizes that a start bit has been input.  
    To prevent this failure, input a low level to the DI pin during the verify operation period (refer to “4.1 Verify  
    operation”).  
    • When a 3-wire interface is configured by connecting the DI input pin and DO output pin, a period in which the  
    data output from the CPU and the serial memory collide may be generated, preventing successful input of the  
    start bit. Take the measures described in “„ 3-Wire Interface (Direct Connection between DI and DO)”.  
    Seiko Instruments Inc.  
    11  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    3. Reading (READ)  
    The READ instruction reads data from a specified address.  
    After CS has gone high, input an instruction in the order of the start bit, read instruction, and address. Since  
    the last input address (A0) has been latched, the output status of the DO pin changes from high impedance  
    (High-Z) to low, which is held until the next rise of SK. 16-bit data starts to be output in synchronization with  
    the next rise of SK.  
    3. 1 Sequential read  
    After the 16-bit data at the specified address has been output, inputting SK while CS is high automatically  
    increments the address, and causes the 16-bit data at the next address to be output sequentially. The  
    above method makes it possible to read the data in the whole memory space. The last address (An yyy  
    A1 A0 = 1 yyy 1 1) rolls over to the top address (An yyy A1 A0 = 0 yyy 0 0).  
    CS  
    SK  
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10 11 12  
    23 24 25 26  
    27 28  
    39 40 41 42  
    43 44  
    ①
    1
    0
    A5 A4 A3  
    A2 A1 A0  
    DI  
    High-Z  
    High-Z  
    D15 D14 D13  
    DO  
    0
    D2 D1 D0 D15 D14 D13  
    D2 D1 D0 D15 D14 D13  
    ADRINC  
    ADRINC  
    Figure 9 Read Timing (S-93C46B)  
    CS  
    SK  
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10 11 12 13 14  
    29  
    40 41 42 43 44  
    24 25 26 27 28  
    45  
    ①
    1
    0
    A6  
    A5 A4 A3 A2 A1 A0  
    DI  
    x : S-93C56B  
    A7: S-93C66B  
    High-Z  
    High-Z  
    D15 D14 D13  
    D2 D1 D0 D15 D14 D13  
    D2 D1 D0 D15 D14 D13  
    0
    DO  
    ADRINC  
    ADRINC  
    Figure 10 Read Timing (S-93C56B, S-93C66B)  
    12  
    Seiko Instruments Inc.  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    4. Writing (WRITE, ERASE, WRAL, ERAL)  
    A write operation includes four write instructions: data write (WRITE), data erase (ERASE), chip write (WRAL),  
    and chip erase (ERAL).  
    A write instruction (WRITE, ERASE, WRAL, ERAL) starts a write operation to the memory cell when a low level  
    is input to CS after a specified number of clocks have been input. The SK and DI inputs are invalid during the  
    write period, so do not input an instruction.  
    Input an instruction while the output status of the DO pin is high or high impedance (High-Z).  
    A write operation is valid only in program enable mode (refer to “5. Write enable (EWEN) and write disable  
    (EWDS)”).  
    4. 1 Verify operation  
    A write operation executed by any instruction is completed within 8 ms (write time tPR: typically 4 ms), so if  
    the completion of the write operation is recognized, the write cycle can be minimized. A sequential  
    operation to confirm the status of a write operation is called a verify operation.  
    (1) Operation  
    After the write operation has started (CS = low), the status of the write operation can be verified by  
    confirming the output status of the DO pin by inputting a high level to CS again. This sequence is  
    called a verify operation, and the period that a high level is input to the CS pin after the write operation  
    has started is called the verify operation period.  
    The relationship between the output status of the DO pin and the write operation during the verify  
    operation period is as follows.  
    • DO pin = low: Writing in progress (busy)  
    • DO pin = high: Writing completed (ready)  
    (2) Operation example  
    There are two methods to perform a verify operation: Waiting for a change in the output status of the  
    DO pin while keeping CS high, or suspending the verify operation (CS = low) once and then performing  
    it again to verify the output status of the DO pin. The latter method allows the CPU to perform other  
    processing during the wait period, allowing an efficient system to be designed.  
    Caution 1. Input a low level to the DI pin during a verify operation.  
    2. If a high level is input to the DI pin at the rise of SK when the output status of the DO pin is  
    high, the S-93C46B/56B/66B latches the instruction assuming that a start bit has been input.  
    In this case, note that the DO pin immediately enters a high-impedance  
    (High-Z) state.  
    Seiko Instruments Inc.  
    13  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    4. 2 Writing data (WRITE)  
    To write 16-bit data to a specified address, change CS to high and then input the WRITE instruction,  
    address, and 16-bit data following the start bit. The write operation starts when CS goes low. There is no  
    need to set the data to 1 before writing. If the clocks more than the specified number have been input, the  
    clock pulse monitoring circuit cancels the WRITE instruction. For details of the clock pulse monitoring  
    circuit, refer to “„ Function to Protect Against Write due to Erroneous Instruction Recognition”.  
    tCDS  
    Standby  
    CS  
    SK  
    Verify  
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10  
    25  
    c
    0
    1
    A5 A4 A3 A2 A1 A0 D15  
    High-Z  
    D0  
    DI  
    tHZ1  
    tSV  
    busy  
    DO  
    ready  
    High-Z  
    tPR  
    Figure 11 Data Write Timing (S-93C46B)  
    tCDS  
    Standby  
    CS  
    Verify  
    SK  
    DI  
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10 11 12  
    27  
    D0  
    c
    0
    A6 A5 A4 A3 A2 A1 A0 D15  
    High-Z  
    1
    tSV  
    tHZ1  
    busy  
    ready  
    DO  
    High-Z  
    tPR  
    x : S-93C56B  
    A7: S-93C66B  
    Figure 12 Data Write Timing (S-93C56B, S-93C66B)  
    14  
    Seiko Instruments Inc.  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    4. 3 Erasing data (ERASE)  
    To erase 16-bit data at a specified address, set all 16 bits of the data to 1, change CS to high, and then  
    input the ERASE instruction and address following the start bit. There is no need to input data. The data  
    erase operation starts when CS goes low. If the clocks more than the specified number have been input,  
    the clock pulse monitoring circuit cancels the ERASE instruction. For details of the clock pulse monitoring  
    circuit, refer to “„ Function to Protect Against Write due to Erroneous Instruction Recognition”.  
    tCDS  
    Standby  
    CS  
    SK  
    Verify  
    1
    2
    3
    4
    5
    6
    7
    8
    9
    c
    A5 A4 A3 A2 A1  
    High-Z  
    A0  
    1
    1
    DI  
    tSV  
    tHZ1  
    busy  
    ready  
    DO  
    High-Z  
    tPR  
    Figure 13 Data Erase Timing (S-93C46B)  
    tCDS  
    Standby  
    CS  
    SK  
    Verify  
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10 11  
    A0  
    c
    1
    1
    A6 A5 A4 A3 A2 A1  
    High-Z  
    DI  
    tSV  
    tHZ1  
    busy  
    ready  
    DO  
    High-Z  
    tPR  
    x : S-93C56B  
    A7: S-93C66B  
    Figure 14 Data Erase Timing (S-93C56B, S-93C66B)  
    Seiko Instruments Inc.  
    15  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    4. 4 Writing to chip (WRAL)  
    To write the same 16-bit data to the entire memory address space, change CS to high, and then input the  
    WRAL instruction, an address, and 16-bit data following the start bit. Any address can be input. The  
    write operation starts when CS goes low. There is no need to set the data to 1 before writing. If the clocks  
    more than the specified number have been input, the clock pulse monitoring circuit cancels the WRAL  
    instruction. For details of the clock pulse monitoring circuit, refer to “„ Function to Protect Against  
    Write due to Erroneous Instruction Recognition”.  
    tCDS  
    Standby  
    CS  
    SK  
    Verify  
    1
    2
    0
    3
    4
    5
    6
    7
    8
    9
    10  
    25  
    D0  
    0
    0
    DI  
    c
    1
    D15  
    tSV  
    4Xs  
    tHZ1  
    High-Z  
    busy  
    ready  
    DO  
    High-Z  
    tPR  
    Figure 15 Chip Write Timing (S-93C46B)  
    tCDS  
    Standby  
    CS  
    Verify  
    SK  
    DI  
    11 12  
    D15  
    27  
    D0  
    1
    2
    0
    3
    4
    5
    6
    7
    8
    9
    10  
    0
    0
    c
    1
    tSV  
    tHZ1  
    6Xs  
    High-Z  
    busy  
    ready  
    DO  
    High-Z  
    tPR  
    Figure 16 Chip Write Timing (S-93C56B, S-93C66B)  
    16  
    Seiko Instruments Inc.  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    4. 5 Erasing chip (ERAL)  
    To erase the data of the entire memory address space, set all the data to 1, change CS to high, and then  
    input the ERAL instruction and an address following the start bit. Any address can be input. There is no  
    need to input data. The chips erase operation starts when CS goes low. If the clocks more than the  
    specified number have been input, the clock pulse monitoring circuit cancels the ERAL instruction. For  
    details of the clock pulse monitoring circuit, refer to “„ Function to Protect Against Write due to  
    Erroneous Instruction Recognition”.  
    Standby  
    CS  
    SK  
    Verify  
    tCDS  
    1
    2
    0
    3
    0
    4
    5
    6
    7
    8
    9
    DI  
    c
    1
    0
    4Xs  
    tSV  
    tHZ1  
    High-Z  
    busy  
    ready  
    DO  
    High-Z  
    tPR  
    Figure 17 Chip Erase Timing (S-93C46B)  
    Standby  
    CS  
    SK  
    Verify  
    tCDS  
    1
    2
    0
    3
    4
    5
    6
    7
    8
    9
    10  
    11  
    DI  
    c
    0
    1
    0
    tSV  
    6Xs  
    tHZ1  
    High-Z  
    busy  
    DO  
    ready  
    High-Z  
    tPR  
    Figure 18 Chip Erase Timing (S-93C56B, S-93C66B)  
    Seiko Instruments Inc.  
    17  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    5. Write enable (EWEN) and write disable (EWDS)  
    The EWEN instruction is an instruction that enables a write operation. The status in which a write operation is  
    enabled is called the program enable mode.  
    The EWDS instruction is an instruction that disables a write operation. The status in which a write operation is  
    disabled is called the program disable mode.  
    After CS goes high, input an instruction in the order of the start bit, EWEN or EWDS instruction, and address  
    (optional). Each mode becomes valid by inputting a low level to CS after the last address (optional) has been  
    input.  
    Standby  
    CS  
    SK  
    1
    2
    3
    4
    5
    6
    7
    8
    9
    0
    0
    c
    DI  
    4Xs  
    11 = EWEN  
    00 = EWDS  
    Figure 19 Write Enable/Disable Timing (S-93C46B)  
    CS  
    SK  
    Standby  
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10  
    11  
    DI  
    0
    0
    c
    6Xs  
    11 = EWEN  
    00 = EWDS  
    Figure 20 Write Enable/Disable Timing (S-93C56B, S-93C66B)  
    (1) Recommendation for write operation disable instruction  
    It is recommended to implement a design that prevents an incorrect write operation when a write instruction  
    is erroneously recognized by executing the write operation disable instruction when executing instructions  
    other than write instruction, and immediately after power-on and before power off.  
    18  
    Seiko Instruments Inc.  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    „ Write Protect Function during the Low Power Supply Voltage  
    The S-93C46B/56B/66B provides a built-in detector. When the power supply voltage is low or at power application,  
    the write instructions (WRITE, ERASE, WRAL, and ERAL) are cancelled, and the write disable state (EWDS) is  
    automatically set. The detection voltage is 1.75 V typ., the release voltage is 2.05 V typ., and there is a hysteresis of  
    about 0.3 V (refer to Figure 21). Therefore, when a write operation is performed after the power supply voltage has  
    dropped and then risen again up to the level at which writing is possible, a write enable instruction (EWEN) must be  
    sent before a write instruction (WRITE, ERASE, WRAL, or ERAL) is executed.  
    When the power supply voltage drops during a write operation, the data being written to an address at that time is  
    not guaranteed.  
    Hysteresis  
    About 0.3 V  
    Power supply voltage  
    Release voltage (+VDET  
    2.05 V Typ.  
    )
    Detection voltage (−VDET  
    1.75 V Typ.  
    )
    Write instruction cancelled  
    Write disable state (EWDS) automatically set  
    Figure 21 Operation during Low Power Supply Voltage  
    Seiko Instruments Inc.  
    19  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    „ Function to Protect Against Write due to Erroneous Instruction Recognition  
    The S-93C46B/56B/66B provides a built-in clock pulse monitoring circuit which is used to prevent an erroneous  
    write operation by canceling write instructions (WRITE, ERASE, WRAL, and ERAL) recognized erroneously due to  
    an erroneous clock count caused by the application of noise pulses or double counting of clocks.  
    Instructions are cancelled if a clock pulse more or less than specified number decided by each write operation  
    (WRITE, ERASE, WRAL, or ERAL) is detected.  
    <Example> Erroneous recognition of program disable instruction (EWDS) as erase instruction (ERASE)  
    Example of S-93C46B  
    Noise pulse  
    CS  
    1
    2
    3
    4
    5
    6
    7
    8
    9
    SK  
    DI  
    1
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    Input EWDS instruction  
    Erroneous recognition as  
    ERASE instruction due to  
    noise pulse  
    1 1 10  
    00  
    In products that do not include a clock pulse monitoring circuit, FFFF is mistakenly written  
    on address 00h. However the S-93C46B detects the overcount and cancels the instruction  
    without performing a write operation.  
    Figure 22 Example of Clock Pulse Monitoring Circuit Operation  
    20  
    Seiko Instruments Inc.  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    „ 3-Wire Interface (Direct Connection between DI and DO)  
    There are two types of serial interface configurations: a 4-wire interface configured using the CS, SK, DI, and DO  
    pins, and a 3-wire interface that connects the DI input pin and DO output pin.  
    When the 3-wire interface is employed, a period in which the data output from the CPU and the data output from the  
    serial memory collide may occur, causing a malfunction. To prevent such a malfunction, connect the DI and DO  
    pins of the S-93C46B/56B/66B via a resistor (10 to 100 kΩ) so that the data output from the CPU takes precedence  
    in being input to the DI pin (refer to “Figure 23 Connection of 3-Wire Interface”).  
    CPU  
    S-93C46B/56B/66B  
    SIO  
    DI  
    DO  
    R : 10 to 100 kΩ  
    Figure 23 Connection of 3-Wire Interface  
    „ I/O Pin  
    1. Connection of input pins  
    All the input pins of the S-93C46B/56B/66B employ a CMOS structure, so design the equipment so that high  
    impedance will not be input while the S-93C46B/56B/66B is operating. Especially, deselect the CS input (a low  
    level) when turning on/off power and during standby. When the CS pin is deselected (a low level), incorrect  
    data writing will not occur. Connect the CS pin to GND via a resistor (10 to 100 kΩ pull-down resistor). To  
    prevent malfunction, it is recommended to use equivalent pull-down resistors for pins other than the CS pin.  
    2. Equivalent circuit of input and output pin  
    The following shows the equivalent circuits of input pins of the S-93C46B/56B/66B. None of the input pins  
    incorporate pull-up and pull-down elements, so special care must be taken when designing to prevent a floating  
    status.  
    Output pins are high-level/low-level/high-impedance tri-state outputs. The TEST pin is disconnected from the  
    internal circuit by a switching transistor during normal operation. As long as the absolute maximum rating is  
    satisfied, the TEST pin and internal circuit will never be connected.  
    Seiko Instruments Inc.  
    21  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    2. 1 Input pin  
    CS  
    Figure 24 CS Pin  
    SK, DI  
    Figure 25 SK, DI Pin  
    TEST  
    Figure 26 TEST Pin  
    22  
    Seiko Instruments Inc.  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    2. 2 Output pin  
    VCC  
    DO  
    Figure 27 DO Pin  
    3. Input pin noise elimination time  
    The S-93C46B/56B/66B include a built-in low-pass filter to eliminate noise at the SK, DI, and CS pins. This  
    means that if the supply voltage is 5.0 V (at room temperature), noise with a pulse width of 20 ns or less can be  
    eliminated.  
    Note, therefore, the noise with a pulse width of more than 20 ns will be recognized as a pulse if the voltage  
    exceeds VIH/VIL.  
    „ Precaution  
    • Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic  
    protection circuit.  
    • SII claims no responsibility for any and all disputes arising out of or in connection with any infringement by products  
    including this IC of patents owned by a third party.  
    Seiko Instruments Inc.  
    23  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    „ Characteristics (Typical Data)  
    1. DC Characteristics  
    1. 1 Current consumption (READ) ICC1  
    vs. ambient temperature Ta  
    1. 2 Current consumption (READ) ICC1  
    vs. ambient temperature Ta  
    VCC = 3.3 V  
    fSK = 500 kHz  
    DATA = 0101  
    VCC = 5.5 V  
    fSK = 2 MHz  
    DATA = 0101  
    0.4  
    0.4  
    ICC1  
    ICC1  
    (mA)  
    (mA)  
    0.2  
    0
    0.2  
    0
    −40  
    85  
    0
    −40  
    0
    85  
    Ta (°C)  
    Ta (°C)  
    1. 3 Current consumption (READ) ICC1  
    vs. ambient temperature Ta  
    1. 4 Current consumption (READ) ICC1  
    vs. power supply voltage VCC  
    Ta = 25°C  
    fSK = 1 MHz, 500 kHz  
    DATA = 0101  
    VCC = 1.8 V  
    fSK = 10 kHz  
    DATA = 0101  
    0.4  
    0.4  
    ICC1  
    (mA)  
    ICC1  
    (mA)  
    1 MHz  
    0.2  
    0
    0.2  
    500 kHz  
    0
    −40  
    0
    85  
    2
    3
    4
    5
    6
    7
    Ta (°C)  
    VCC (V)  
    1. 5 Current consumption (READ) ICC1  
    vs. power supply voltage VCC  
    1. 6 Current consumption (READ) ICC1  
    vs. Clock frequency fSK  
    Ta = 25°C  
    fSK = 100 kHz, 10 kHz  
    DATA = 0101  
    0.4  
    VCC = 5.0 V  
    Ta = 25°C  
    0.4  
    ICC1  
    ICC1  
    (mA)  
    (mA)  
    0.2  
    100 kHz  
    0.2  
    0
    10 kHz  
    10 k 100 k 1 M 2M 10M  
    0
    2
    3
    4
    5
    6
    7
    fSK (Hz)  
    VCC (V)  
    24  
    Seiko Instruments Inc.  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    1. 7 Current consumption (WRITE) ICC2  
    vs. ambient temperature Ta  
    1. 8 Current consumption (WRITE) ICC2  
    vs. ambient temperature Ta  
    VCC = 3.3 V  
    VCC = 5.5 V  
    1.0  
    1.0  
    ICC2  
    (mA)  
    ICC2  
    (mA)  
    0.5  
    0
    0.5  
    0
    0
    85  
    −40  
    −40  
    0
    85  
    Ta (°C)  
    Ta (°C)  
    1. 9 Current consumption (WRITE) ICC2  
    vs. ambient temperature Ta  
    1. 10 Current consumption (WRITE) ICC2  
    vs. power supply voltage VCC  
    VCC = 2.7 V  
    Ta = 25°C  
    1.0  
    1.0  
    ICC2  
    ICC2  
    (mA)  
    (mA)  
    0.5  
    0
    0.5  
    0
    −40  
    2
    3
    4
    5 6  
    7
    0
    85  
    VCC (V)  
    Ta (°C)  
    1. 11 Current consumption in standby mode ISB  
    vs. ambient temperature Ta  
    1. 12 Current consumption in standby mode ISB  
    vs. power supply voltage VCC  
    Ta = 25°C  
    CS = GND  
    VCC = 5.5 V  
    CS = GND  
    1.0  
    ISB  
    (μA)  
    1.0  
    ISB  
    (μA)  
    0.5  
    0.5  
    0
    0
    2
    3
    4
    5 6  
    7
    −40  
    0
    85  
    VCC (V)  
    Ta (°C)  
    Seiko Instruments Inc.  
    25  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    1. 13 Input leakage current ILI  
    vs. ambient temperature Ta  
    1. 14 Input leakage current ILI  
    vs. ambient temperature Ta  
    VCC = 5.5 V  
    VCC=5.5 V  
    CS, SK, DI,  
    TEST=0 V  
    CS, SK, DI,  
    TEST = 5.5 V  
    1.0  
    1.0  
    ILI  
    lLI  
    (μA)  
    (μA)  
    0.5  
    0
    0.5  
    0
    −40  
    0
    85  
    -40  
    0
    85  
    Ta (°C)  
    Ta (°C)  
    1. 15 Output leakage current ILO  
    vs. ambient temperature Ta  
    1. 16 Output leakage current ILO  
    vs. ambient temperature Ta  
    VCC = 5.5 V  
    DO = 5.5 V  
    VCC = 5.5 V  
    DO = 0 V  
    1.0  
    1.0  
    ILO  
    ILO  
    (μA)  
    (μA)  
    0.5  
    0
    0.5  
    0
    −40  
    0
    85  
    −40  
    0
    85  
    Ta (°C)  
    Ta (°C)  
    1. 17 High-level output voltage VOH  
    vs. ambient temperature Ta  
    VCC = 4.5 V  
    1. 18 High-level output voltage VOH  
    vs. ambient temperature Ta  
    VCC = 2.7 V  
    IOH = −100 μA  
    2.7  
    IOH = −400 μA  
    4.6  
    VOH  
    2.6  
    (V)  
    VOH  
    4.4  
    (V)  
    2.5  
    4.2  
    −40  
    0
    85  
    −40  
    0
    85  
    Ta (°C)  
    Ta (°C)  
    26  
    Seiko Instruments Inc.  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    1. 19 High-level output voltage VOH  
    vs. ambient temperature Ta  
    1. 20 High-level output voltage VOH  
    vs. ambient temperature Ta  
    VCC = 1.8 V  
    IOH = −10 μA  
    1.9  
    VCC = 2.5 V  
    IOH = −100 μA  
    2.5  
    VOH  
    (V)  
    VOH  
    (V)  
    2.4  
    2.3  
    1.8  
    1.7  
    −40  
    0
    85  
    −40  
    0
    85  
    Ta (°C)  
    Ta (°C)  
    1. 21 Low-level output voltage VOL  
    vs. ambient temperature Ta  
    1. 22 Low-level output voltage VOL  
    vs. ambient temperature Ta  
    VCC = 4.5 V  
    IOL = 2.1 mA  
    VCC = 1.8 V  
    IOL = 100 μA  
    0.3  
    0.03  
    VOL  
    (V)  
    VOL  
    (V)  
    0.2  
    0.1  
    0.02  
    0.01  
    0
    85  
    0
    85  
    −40  
    −40  
    Ta (°C)  
    Ta (°C)  
    1. 23 High-level output current IOH  
    vs. ambient temperature Ta  
    1. 24 High-level output current IOH  
    vs. ambient temperature Ta  
    VCC = 4.5 V  
    VOH = 2.4 V  
    VCC = 2.7 V  
    VOH = 2.4 V  
    −20.0  
    −2  
    IOH  
    (mA)  
    IOH  
    (mA)  
    −10.0  
    −1  
    0
    0
    0
    85  
    −40  
    −40  
    0
    85  
    Ta (°C)  
    Ta (°C)  
    Seiko Instruments Inc.  
    27  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    1. 25 High-level output current IOH  
    vs. ambient temperature Ta  
    1. 26 High-level output current IOH  
    vs. ambient temperature Ta  
    VCC = 2.5 V  
    VOH = 2.2 V  
    VCC = 1.8 V  
    VOH = 1.6 V  
    −2  
    −1.0  
    IOH  
    IOH  
    (mA)  
    (mA)  
    −1  
    −0.5  
    0
    0
    0
    85  
    −40  
    −40  
    0
    85  
    Ta (°C)  
    Ta (°C)  
    1. 27 Low-level output current IOL  
    vs. ambient temperature Ta  
    1. 28 Low-level output current IOL  
    vs. ambient temperature Ta  
    VCC = 1.8 V  
    VOL = 0.1 V  
    VCC = 4.5 V  
    VOL = 0.4 V  
    1.0  
    20  
    IOL  
    IOL  
    (mA)  
    (mA)  
    0.5  
    0
    10  
    0
    −40  
    0
    85  
    −40  
    0
    85  
    Ta (°C)  
    Ta (°C)  
    1. 29 Input inverted voltage VINV  
    vs. power supply voltage VCC  
    1. 30 Input inverted voltage VINV  
    vs. ambient temperature Ta  
    VCC = 5.0 V  
    CS, SK, DI  
    Ta = 25°C  
    CS, SK, DI  
    3.0  
    VINV  
    (V)  
    3.0  
    VINV  
    (V)  
    1.5  
    0
    2.0  
    0
    −40  
    1
    2
    3
    4 5  
    6
    0
    85  
    7
    Ta (°C)  
    VCC (V)  
    28  
    Seiko Instruments Inc.  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    1. 31 Low supply voltage detection voltage  
    vs. ambient temperature Ta  
    −
    VDET  
    1. 32 Low supply voltage release voltage  
    vs. ambient temperature Ta  
    +VDET  
    2.0  
    2.0  
    −VDET  
    (V)  
    +VDET  
    (V)  
    1.0  
    0
    1.0  
    0
    0
    85  
    −40  
    0
    85  
    −40  
    Ta (°C)  
    Ta (°C)  
    Seiko Instruments Inc.  
    29  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    2. AC Characteristics  
    2. 1 Maximum operating frequency fMAX.  
    vs. power supply voltage VCC  
    2. 2 Write time tPR  
    vs. power supply voltage VCC  
    Ta = 25°C  
    Ta = 25°C  
    2M  
    1M  
    4
    2
    fMAX.  
    (Hz)  
    tPR  
    (ms)  
    100k  
    10k  
    1
    2
    3
    4
    5
    1
    2
    3
    4
    5 6  
    7
    V
    CC (V)  
    VCC (V)  
    2. 3 Write time tPR  
    2. 4 Write time tPR  
    vs. ambient temperature Ta  
    vs. ambient temperature Ta  
    VCC = 5.0 V  
    VCC = 3.0 V  
    6
    6
    tPR  
    (ms)  
    tPR  
    (ms)  
    4
    2
    4
    2
    0
    85  
    −40  
    −40  
    0
    85  
    Ta (°C)  
    Ta (°C)  
    2. 5 Write time tPR  
    2. 6 Data output delay time tPD  
    vs. ambient temperature Ta  
    vs. ambient temperature Ta  
    VCC = 2.7 V  
    VCC = 4.5 V  
    6
    0.3  
    tPD  
    tPR  
    (ms)  
    (μs)  
    4
    0.2  
    2
    0.1  
    −40  
    0
    85  
    −40  
    0
    85  
    Ta (°C)  
    Ta (°C)  
    30  
    Seiko Instruments Inc.  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    2. 7 Data output delay time tPD  
    vs. ambient temperature Ta  
    2. 8 Data output delay time tPD  
    vs. ambient temperature Ta  
    VCC = 2.7 V  
    VCC = 1.8 V  
    0.6  
    tPD  
    1.5  
    tPD  
    (μs)  
    (μs)  
    0.4  
    1.0  
    0.2  
    0.5  
    0
    85  
    0
    85  
    −40  
    −40  
    Ta (°C)  
    Ta (°C)  
    Seiko Instruments Inc.  
    31  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    „ Product Name Structure  
    1. Product name  
    1. 1 8-Pin SOP (JEDEC), 8-Pin TSSOP, SNT-8A  
    S-93CxxB  
    x
    0
    I
    -
    xxxx  
    x
    Environmental code  
    U:  
    G:  
    Lead-free (Sn 100%), halogen-free  
    Lead-free (for details, please contact our sales office)  
    Package name (abbreviation) and IC packing specifications  
    J8T1: 8-Pin SOP(JEDEC), Tape  
    T8T1: 8-Pin TSSOP, Tape  
    I8T1: SNT-8A, Tape  
    Operation temperature  
    I:  
    −40 to +85°C  
    Fixed  
    Pin assignment  
    D:  
    8-Pin SOP(JEDEC)  
    8-Pin TSSOP  
    SNT-8A  
    R:  
    8-Pin SOP(JEDEC) (Rotated)  
    Product name  
    S-93C46B : 1 K-bit  
    S-93C56B : 2 K-bit  
    S-93C66B : 4 K-bit  
    1. 2 TMSOP-8  
    S-93CxxB D0  
    I
    -
    K8T3  
    U
    Environmental code  
    U:  
    Lead-free (Sn 100%), halogen-free  
    Package name (abbreviation) and IC packing specifications  
    K8T3: TMSOP-8, Tape  
    Operation temperature  
    I:  
    −40 to +85°C  
    Fixed  
    Product name  
    S-93C46B : 1 K-bit  
    S-93C56B : 2 K-bit  
    S-93C66B : 4 K-bit  
    32  
    Seiko Instruments Inc.  
    3-WIRE SERIAL E2PROM  
    S-93C46B/56B/66B  
    Rev.7.0_00  
    1. 3 8-Pin DIP  
    S-93CxxB D0  
    I
    -
    D8S1  
    G
    Environmental code  
    G: Lead-free (for details, please contact our sales office)  
    Package name (abbreviation) and IC packing specifications  
    D8S1: 8-Pin DIP, Tube  
    Operation temperature  
    I:  
    −40 to +85°C  
    Fixed  
    Product name  
    S-93C46B : 1 K-bit  
    S-93C56B : 2 K-bit  
    S-93C66B : 4 K-bit  
    2. Package  
    Drawing code  
    Tape  
    Package name  
    Package  
    Reel  
    Land  
    8-Pin DIP  
    8-Pin SOP  
    (JEDEC)  
    DP008-F-P-SD  
    ⎯
    ⎯
    ⎯
    Environmental code = G FJ008-A-P-SD FJ008-D-C-SD FJ008-D-R-SD  
    Environmental code = U FJ008-A-P-SD FJ008-D-C-SD FJ008-D-R-S1  
    Environmental code = G FT008-A-P-SD FT008-E-C-SD FT008-E-R-SD  
    Environmental code = U FT008-A-P-SD FT008-E-C-SD FT008-E-R-S1  
    ⎯
    ⎯
    8-Pin TSSOP  
    SNT-8A  
    PH008-A-P-SD PH008-A-C-SD PH008-A-R-SD PH008-A-L-SD  
    FM008-A-P-SD FM008-A-C-SD FM008-A-R-SD  
    TMSOP-8  
    ⎯
    Seiko Instruments Inc.  
    33  
    9.6(10.6max.)  
    8
    5
    1
    4
    7.62  
    0.89  
    1.3  
    +0.11  
    -0.05  
    0.25  
    2.54  
    0.48±0.1  
    0° to 15°  
    No. DP008-F-P-SD-3.0  
    DIP8-F-PKG Dimensions  
    DP008-F-P-SD-3.0  
    TITLE  
    No.  
    SCALE  
    UNIT  
    mm  
    Seiko Instruments Inc.  
    5.02±0.2  
    8
    5
    1
    4
    0.20±0.05  
    1.27  
    0.4±0.05  
    No. FJ008-A-P-SD-2.1  
    SOP8J-D-PKG Dimensions  
    FJ008-A-P-SD-2.1  
    TITLE  
    No.  
    SCALE  
    UNIT  
    mm  
    Seiko Instruments Inc.  
    4.0±0.1(10 pitches:40.0±0.2)  
    2.0±0.05  
    ø1.55±0.05  
    0.3±0.05  
    8.0±0.1  
    ø2.0±0.05  
    2.1±0.1  
    5°max.  
    6.7±0.1  
    8
    5
    1
    4
    Feed direction  
    No. FJ008-D-C-SD-1.1  
    SOP8J-D-Carrier Tape  
    FJ008-D-C-SD-1.1  
    TITLE  
    No.  
    SCALE  
    UNIT  
    mm  
    Seiko Instruments Inc.  
    60°  
    2±0.5  
    13.5±0.5  
    Enlarged drawing in the central part  
    ø21±0.8  
    2±0.5  
    ø13±0.2  
    No. FJ008-D-R-SD-1.1  
    SOP8J-D-Reel  
    TITLE  
    FJ008-D-R-SD-1.1  
    No.  
    SCALE  
    UNIT  
    QTY.  
    2,000  
    mm  
    Seiko Instruments Inc.  
    60°  
    2±0.5  
    13.5±0.5  
    Enlarged drawing in the central part  
    ø21±0.8  
    2±0.5  
    ø13±0.2  
    No. FJ008-D-R-S1-1.0  
    SOP8J-D-Reel  
    TITLE  
    FJ008-D-R-S1-1.0  
    No.  
    SCALE  
    UNIT  
    QTY.  
    4,000  
    mm  
    Seiko Instruments Inc.  
    +0.3  
    -0.2  
    3.00  
    5
    8
    1
    4
    0.17±0.05  
    0.2±0.1  
    0.65  
    No. FT008-A-P-SD-1.1  
    TSSOP8-E-PKG Dimensions  
    FT008-A-P-SD-1.1  
    TITLE  
    No.  
    SCALE  
    UNIT  
    mm  
    Seiko Instruments Inc.  
    4.0±0.1  
    2.0±0.05  
    ø1.55±0.05  
    0.3±0.05  
    +0.1  
    -0.05  
    8.0±0.1  
    ø1.55  
    (4.4)  
    +0.4  
    -0.2  
    6.6  
    8
    1
    4
    5
    Feed direction  
    No. FT008-E-C-SD-1.0  
    TITLE  
    TSSOP8-E-Carrier Tape  
    FT008-E-C-SD-1.0  
    No.  
    SCALE  
    UNIT  
    mm  
    Seiko Instruments Inc.  
    13.4±1.0  
    17.5±1.0  
    Enlarged drawing in the central part  
    ø21±0.8  
    2±0.5  
    ø13±0.5  
    No. FT008-E-R-SD-1.0  
    TSSOP8-E-Reel  
    FT008-E-R-SD-1.0  
    TITLE  
    No.  
    SCALE  
    UNIT  
    QTY.  
    3,000  
    mm  
    Seiko Instruments Inc.  
    13.4±1.0  
    17.5±1.0  
    Enlarged drawing in the central part  
    ø21±0.8  
    2±0.5  
    ø13±0.5  
    No. FT008-E-R-S1-1.0  
    TSSOP8-E-Reel  
    FT008-E-R-S1-1.0  
    TITLE  
    No.  
    SCALE  
    UNIT  
    QTY.  
    4,000  
    mm  
    Seiko Instruments Inc.  
    1.97±0.03  
    6
    5
    8
    7
    +0.05  
    -0.02  
    0.08  
    1
    2
    3
    4
    0.5  
    0.48±0.02  
    0.2±0.05  
    No. PH008-A-P-SD-2.0  
    SNT-8A-A-PKG Dimensions  
    PH008-A-P-SD-2.0  
    TITLE  
    No.  
    SCALE  
    UNIT  
    mm  
    Seiko Instruments Inc.  
    +0.1  
    -0  
    4.0±0.1  
    2.0±0.05  
    0.25±0.05  
    ø1.5  
    0.65±0.05  
    ø0.5±0.1  
    4.0±0.1  
    2.25±0.05  
    5°  
    4 3 2 1  
    5 6 7 8  
    Feed direction  
    No. PH008-A-C-SD-1.0  
    TITLE  
    SNT-8A-A-Carrier Tape  
    PH008-A-C-SD-1.0  
    No.  
    SCALE  
    UNIT  
    mm  
    Seiko Instruments Inc.  
    12.5max.  
    9.0±0.3  
    Enlarged drawing in the central part  
    ø13±0.2  
    (60°)  
    (60°)  
    No. PH008-A-R-SD-1.0  
    SNT-8A-A-Reel  
    TITLE  
    No.  
    PH008-A-R-SD-1.0  
    5,000  
    SCALE  
    UNIT  
    QTY.  
    mm  
    Seiko Instruments Inc.  
    0.52  
    2.01  
    0.52  
    0.3  
    0.3  
    0.3  
    0.2  
    0.2 0.3  
    0.2  
    Caution Making the wire pattern under the package is possible. However, note that the package  
    may be upraised due to the thickness made by the silk screen printing and of a solder  
    resist on the pattern because this package does not have the standoff.  
    No. PH008-A-L-SD-3.0  
    SNT-8A-A-Land Recommendation  
    TITLE  
    No.  
    PH008-A-L-SD-3.0  
    SCALE  
    UNIT  
    mm  
    Seiko Instruments Inc.  
    2.90±0.2  
    8
    5
    1
    4
    0.13±0.1  
    0.2±0.1  
    0.65±0.1  
    No. FM008-A-P-SD-1.0  
    TMSOP8-A-PKG Dimensions  
    FM008-A-P-SD-1.0  
    TITLE  
    No.  
    SCALE  
    UNIT  
    mm  
    Seiko Instruments Inc.  
    2.00±0.05  
    4.00±0.1  
    1.00±0.1  
    4.00±0.1  
    +0.1  
    -0  
    1.55  
    1.05±0.05  
    0.30±0.05  
    3.25±0.05  
    1
    8
    4
    5
    Feed direction  
    No. FM008-A-C-SD-1.0  
    TMSOP8-A-Carrier Tape  
    FM008-A-C-SD-1.0  
    TITLE  
    No.  
    SCALE  
    UNIT  
    mm  
    Seiko Instruments Inc.  
    16.5max.  
    13.0±0.3  
    Enlarged drawing in the central part  
    13±0.2  
    (60°)  
    (60°)  
    No. FM008-A-R-SD-1.0  
    TMSOP8-A-Reel  
    FM008-A-R-SD-1.0  
    TITLE  
    No.  
    SCALE  
    UNIT  
    QTY.  
    4,000  
    mm  
    Seiko Instruments Inc.  
    www.sii-ic.com  
    • The information described herein is subject to change without notice.  
    • Seiko Instruments Inc. is not responsible for any problems caused by circuits or diagrams described herein  
    whose related industrial properties, patents, or other rights belong to third parties. The application circuit  
    examples explain typical applications of the products, and do not guarantee the success of any specific  
    mass-production design.  
    • When the products described herein are regulated products subject to the Wassenaar Arrangement or other  
    agreements, they may not be exported without authorization from the appropriate governmental authority.  
    • Use of the information described herein for other purposes and/or reproduction or copying without the  
    express permission of Seiko Instruments Inc. is strictly prohibited.  
    • The products described herein cannot be used as part of any device or equipment affecting the human  
    body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus  
    installed in airplanes and other vehicles, without prior written permission of Seiko Instruments Inc.  
    • Although Seiko Instruments Inc. exerts the greatest possible effort to ensure high quality and reliability, the  
    failure or malfunction of semiconductor products may occur. The user of these products should therefore  
    give thorough consideration to safety design, including redundancy, fire-prevention measures, and  
    malfunction prevention, to prevent any accidents, fires, or community damage that may ensue.  
    配单直通车
    S-93C46CD0H-A8T1U3产品参数
    型号:S-93C46CD0H-A8T1U3
    是否Rohs认证： 符合
    生命周期：Active
    IHS 制造商：ABLIC INC
    包装说明：HSNT-8
    Reach Compliance Code：unknown
    风险等级：5.73
    最大时钟频率 (fCLK)：2 MHz
    数据保留时间-最小值：100
    耐久性：800000 Write/Erase Cycles
    JESD-30 代码：R-PDSO-N8
    JESD-609代码：e3
    长度：3 mm
    内存密度：1024 bit
    内存集成电路类型：EEPROM
    内存宽度：16
    功能数量：1
    端口数量：1
    端子数量：8
    字数：64 words
    字数代码：64
    工作模式：SYNCHRONOUS
    最高工作温度：105 °C
    最低工作温度：-40 °C
    组织：64X16
    封装主体材料：PLASTIC/EPOXY
    封装代码：HSON
    封装等效代码：SOLCC8,.11,20
    封装形状：RECTANGULAR
    封装形式：SMALL OUTLINE, HEAT SINK/SLUG
    并行/串行：SERIAL
    峰值回流温度（摄氏度）：NOT SPECIFIED
    筛选级别：AEC-Q100
    座面最大高度：0.5 mm
    串行总线类型：MICROWIRE
    最大待机电流：0.000005 A
    最大压摆率：0.0025 mA
    最大供电电压 (Vsup)：5.5 V
    最小供电电压 (Vsup)：4.5 V
    标称供电电压 (Vsup)：5 V
    表面贴装：YES
    技术：CMOS
    温度等级：INDUSTRIAL
    端子面层：Tin (Sn)
    端子形式：NO LEAD
    端子节距：0.5 mm
    端子位置：DUAL
    处于峰值回流温度下的最长时间：NOT SPECIFIED
    宽度：2 mm
    最长写入周期时间 (tWC)：4 ms
    Base Number Matches：1
    •  
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