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    EM6621 参数 Datasheet PDF下载

    EM6621图片预览
    型号： EM6621
    PDF下载： 下载PDF文件 查看货源
    内容描述： 超低功耗微控制器的4x20 LCD驱动 [Ultra Low Power Microcontroller with 4x20 LCD Driver]
    分类和应用： 微控制器驱动
    文件页数/大小： 69 页 / 746 K
    品牌： EMMICRO [ EM MICROELECTRONIC - MARIN SA ]
     浏览型号EM6621的Datasheet PDF文件第1页浏览型号EM6621的Datasheet PDF文件第2页浏览型号EM6621的Datasheet PDF文件第4页浏览型号EM6621的Datasheet PDF文件第5页浏览型号EM6621的Datasheet PDF文件第6页浏览型号EM6621的Datasheet PDF文件第7页浏览型号EM6621的Datasheet PDF文件第8页浏览型号EM6621的Datasheet PDF文件第9页  
    EM6621
    Table of Contents
    FEATURES _________________________________ 1
    DESCRIPTION _______________________________ 1
    TYPICAL APPLICATIONS ______________________ 1
    EM6621 AT A GLANCE ________________________ 2
    1. PIN DESCRIPTION FOR EM6621 ____________ 4
    2. OPERATING MODES______________________ 6
    2.1
    A
    CTIVE
    M
    ODE
    _________________________ 6
    2.2
    S
    TANDBY
    M
    ODE
    ________________________ 6
    2.3
    S
    LEEP
    M
    ODE
    __________________________ 6
    3. POWER SUPPLY _________________________ 7
    4. RESET _________________________________ 8
    4.1
    O
    SCILLATION
    D
    ETECTION
    C
    IRCUIT
    ___________ 9
    4.2
    R
    ESET
    T
    ERMINAL
    _______________________ 9
    4.3
    I
    NPUT
    P
    ORT
    A R
    ESET
    F
    UNCTION
    ____________ 9
    4.4
    D
    IGITAL
    W
    ATCHDOG
    T
    IMER
    R
    ESET
    _________ 10
    4.5
    CPU S
    TATE AFTER
    R
    ESET
    _______________ 10
    5. OSCILLATOR AND PRESCALER ___________ 11
    5.1
    O
    SCILLATOR
    _________________________ 11
    5.2
    P
    RESCALER
    __________________________ 11
    6. INPUT AND OUTPUT PORTS ______________ 13
    6.1
    P
    ORTS
    O
    VERVIEW
    _____________________ 13
    6.2
    P
    ORT
    A_____________________________ 14
    6.2.1
    IRQ on Port A ___________________ 14
    6.2.2
    Pull-up or Pull-down ______________ 15
    6.2.3
    Software Test Variables ___________ 15
    6.2.4
    Port A for 10-Bit Counter and MSC ___ 15
    6.3
    P
    ORT
    A R
    EGISTERS
    ____________________ 15
    6.4
    P
    ORT
    B_____________________________ 17
    6.4.1
    Input / Output Mode_______________ 17
    6.4.2
    Pull-up or Pull-down ______________ 18
    6.4.3
    CMOS / NCH. Open Drain Output____ 18
    6.4.4
    PWM and Frequency Output________ 19
    6.5
    P
    ORT
    B R
    EGISTERS
    ____________________ 19
    6.6
    P
    ORT
    S
    ERIAL
    _________________________ 20
    6.6.1
    4-bit Parallel I/O _________________ 20
    6.6.2
    Pull-up or Pull-down ______________ 21
    6.6.3
    Nch. Open Drain Outputs __________ 22
    6.6.4
    General Functional Description______ 22
    6.6.5
    Detailed Functional Description _____ 23
    6.6.6
    Output Modes ___________________ 23
    6.6.7
    Reset and Sleep on Port SP ________ 24
    6.7
    S
    ERIAL
    I
    NTERFACE
    R
    EGISTERS
    ____________ 25
    7. MELODY, BUZZER ______________________ 27
    7.1
    4-B
    IT
    T
    IMER
    _________________________ 27
    7.1.1
    Single Run Mode_________________ 28
    7.1.2
    Continuos Run Mode______________ 28
    7.2
    P
    ROGRAMMING
    O
    RDER
    __________________ 29
    7.3
    M
    ELODY
    R
    EGISTERS
    ____________________ 29
    8. 10-BIT COUNTER _______________________ 31
    8.1
    F
    ULL AND
    L
    IMITED
    B
    IT
    C
    OUNTING
    ___________ 31
    8.2
    F
    REQUENCY
    S
    ELECT AND
    U
    P
    /D
    OWN
    C
    OUNTING
    32
    8.3
    E
    VENT
    C
    OUNTING
    _____________________ 33
    8.4
    C
    OMPARE
    F
    UNCTION
    ___________________ 33
    8.5
    P
    ULSE
    W
    IDTH
    M
    ODULATION
    (PWM) ________ 33
    8.5.1
    How the PWM Generator works._____ 34
    8.5.2
    PWM Characteristics______________ 34
    8.6
    C
    OUNTER
    S
    ETUP
    ______________________35
    8.7
    10-
    BIT
    C
    OUNTER
    R
    EGISTERS
    ______________35
    9. MILLISECOND COUNTER _________________37
    9.1
    PA[3] I
    NPUT FOR
    MSC __________________37
    9.2
    IRQ
    FROM
    MSC _______________________37
    9.3
    MSC-M
    ODES
    _________________________38
    9.4
    M
    ODE SELECTION
    ______________________38
    9.5
    M
    ILLISECOND
    C
    OUNTER
    R
    EGISTERS
    _________40
    10.
    INTERRUPT CONTROLLER ______________41
    10.1
    I
    NTERRUPT
    C
    ONTROL
    R
    EGISTERS
    ___________42
    11.
    SUPPLY VOLTAGE LEVEL DETECTOR ____43
    11.1
    SVLD R
    EGISTER
    ______________________43
    12.
    STROBE OUTPUT______________________44
    12.1
    S
    TROBE
    R
    EGISTER
    _____________________44
    13.
    RAM _________________________________45
    14.
    LCD DRIVER __________________________46
    14.1
    LCD C
    ONTROL
    ________________________47
    14.2
    LCD A
    DDRESSING
    _____________________47
    14.3
    F
    REE
    S
    EGMENT
    A
    LLOCATION
    ______________48
    14.4
    LCD R
    EGISTERS
    _______________________48
    15.
    PERIPHERAL MEMORY MAP ____________50
    16.
    OPTION REGISTER MEMORY MAP _______54
    17.
    ACTIVE SUPPLY CURRENT TEST ________55
    18.
    MASK OPTIONS _______________________56
    18.1
    I
    NPUT
    / O
    UTPUT
    P
    ORTS
    __________________56
    18.1.1
    Port A Metal Options ______________56
    18.1.2
    Port A Metal Options ______________56
    18.1.3
    Port B Metal Options ______________57
    18.1.4
    Port SP Metal Options _____________58
    18.1.5
    Voltage Regulator Option ___________59
    18.1.6
    Debouncer Frequency Option _______59
    18.1.7
    User defined LCD Segment Allocation 59
    19.
    TEMP. AND VOLTAGE BEHAVIORS _______60
    19.1
    IDD C
    URRENT
    (T
    YPICAL
    ) _________________60
    19.2
    P
    ULL
    -
    DOWN
    R
    ESISTANCE
    (T
    YPICAL
    ) _________60
    19.3
    P
    ULL
    -
    UP
    R
    ESISTANCE
    (T
    YPICAL
    )____________61
    19.4
    O
    UTPUT
    C
    URRENTS
    (T
    YPICAL
    ) _____________61
    20.
    ELECTRICAL SPECIFICATION ___________62
    20.1
    A
    BSOLUTE
    M
    AXIMUM
    R
    ATINGS
    _____________62
    20.2
    H
    ANDLING
    P
    ROCEDURES
    _________________62
    20.3
    S
    TANDARD
    O
    PERATING
    C
    ONDITIONS
    _________62
    20.4
    DC C
    HARACTERISTICS
    - P
    OWER
    S
    UPPLY
    _____62
    20.5
    S
    UPPLY
    V
    OLTAGE
    L
    EVEL
    D
    ETECTOR
    _________63
    20.6
    O
    SCILLATOR
    __________________________63
    20.7
    DC
    CHARACTERISTICS
    - I/O P
    INS
    ___________64
    20.8
    LCD SEG[20:1] O
    UTPUTS
    _______________65
    20.9
    LCD C
    OM
    [4:1] O
    UTPUTS
    ________________65
    20.10
    DC O
    UTPUT
    C
    OMPONENT
    ______________65
    20.11
    LCD V
    OLTAGE
    M
    ULTIPLIER
    _____________65
    21.
    DIE, PAD LOCATION AND SIZE___________66
    22.
    PACKAGE & ORDERING INFORMATION ___67
    22.1
    O
    RDERING
    I
    NFORMATION
    _________________68
    22.2
    P
    ACKAGE
    M
    ARKING
    _____________________68
    22.3
    C
    USTOMER
    M
    ARKING
    ____________________68
    23.
    SPEC UPDATE ________________________69
    03/02 REV. D/444
    Copyright
    2002, EM Microelectronic-Marin SA
    3
    www.emmicroelectronic.com

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