PRELIMINARY
KM681000C Family
CMOS SRAM
128K x8 bit Low Power CMOS Static RAM
FEATURES
GENERAL DESCRIPTION
· Process Technology: TFT
The KM681000C families are fabricated by SAMSUNG¢s
advanced CMOS process technology. The families support
various operating temperature ranges and have various
package types for user flexibility of system design. The fami-
lies also support low data retention voltage for battery back-
up operation with low data retention current.
· Organization: 128K x8
· Power Supply Voltage: 4.5~5.5V
· Low Data Retention Voltage: 2V(Min)
· Three state output and TTL Compatible
· Package Type: 32-DIP-600, 32-SOP-525,
32-TSOP1-0820F/R
PRODUCT FAMILY
Power Dissipation
PKG Type
Product Family Operating Temperature Vcc Range
Speed
Standby
Operating
(ICC2, Max)
(ISB1, Max)
KM681000CL
50mA
10mA
32-DIP, 32-SOP
32-TSOP1-F/R
Commercial(0~70°C)
55/70ns
70ns
KM681000CL-L
4.5~5.5V
60mA
KM681000CLI
50mA
15mA
32-SOP
32-TSOP1-F/R
Industrial(-40~85°C)
KM681000CLI-L
PIN DESCRIPTION
FUNCTIONAL BLOCK DIAGRAM
A11
A9
A8
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
OE
A10
Clk gen.
Precharge circuit.
2
3
CS1
I/O8
I/O7
I/O6
I/O5
I/O4
VSS
I/O3
I/O2
I/O1
A0
A13
WE
CS2
A15
VCC
N.C
A16
A14
A12
A7
VCC
A15
CS2
WE
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
4
N.C
A16
A14
A12
A7
A4
A5
VCC
VSS
5
2
6
3
7
A6
8
32-TSOP
Type1 - Forward
4
A7
9
Memory array
1024 rows
128´ 8 columns
Row
select
A13
A8
5
10
11
12
13
14
15
16
A8
6
A6
A12
A13
A14
A15
A9
A5
7
A6
A5
A4
A1
A2
A3
32-DIP
32-SOP
A11
OE
A4
8
9
A3
A16
A10
CS1
I/O8
I/O7
I/O6
I/O5
I/O4
A2
10
11
12
13
14
15
16
A1
16
15
14
13
12
11
10
9
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
A3
A2
A1
A0
A4
A5
A6
A0
I/O Circuit
Data
cont
I/O1
I/O8
I/O1
I/O2
I/O3
VSS
Column select
A7
I/O1
I/O2
I/O3
VSS
I/O4
I/O5
I/O6
I/O7
I/O8
CS1
A10
OE
A12
A14
A16
N.C
VCC
A15
CS2
WE
A13
A8
Data
cont
32-TSOP
Type1 - Reverse
8
7
6
5
A0 A1 A2 A3 A9 A10 A11
4
3
2
A9
A11
1
CS1
CS2
WE
OE
Control
logic
Name
Function
Name
Function
CS1,CS2 Chip Select Inputs I/O1~I/O8 Data Inputs/Out-
OE
WE
Output Enable
Write Enable
Address Inputs
Vcc
Vss
N.C
Power
Ground
A0~A16
No Connection
SAMSUNG ELECTRONICS CO., LTD. reserves the right to change products and specifications without notice.
Revision 2.0
2
November 1997
SAMSUNG [ SAMSUNG ]
