參數(shù)資料
    型號: HX6228AVNC
    廠商: Honeywell International Inc.
    英文描述: AB 7C 7#12 SKT PLUG
    中文描述: 128K的× 8靜態(tài)RAM的絕緣硅HX6228
    文件頁數(shù): 2/12頁
    文件大?。?/td> 153K
    代理商: HX6228AVNC
    HX6228
    2
    FUNCTIONAL DIAGRAM
    CE
    NCS
    NWE
    NOE
    MODE
    DQ
    H
    L
    H
    L
    Read
    Data Out
    H
    L
    L
    X
    Write
    Data In
    X
    H
    XX
    XX
    Deselected
    High Z
    L
    X
    XX
    XX
    Disabled
    High Z
    TRUTH TABLE
    SIGNAL DEFINITIONS
    A: 0-16
    Address input pins which select a particular eight-bit word within the memory array.
    DQ: 0-7
    Bidirectional data pins which serve as data outputs during a read operation and as data inputs during a write
    operation.
    NCS
    Not chip select, when at a low level allows normal operation. When at a high level NCS forces the SRAM to
    a precharge condition, holds the data output drivers in a high impedance state and disables all the input
    buffers except CE. If this signal is not used it must be connected to VSS.
    NWE
    Negative write enable, when at a low level activates a write operation and holds the data output drivers in
    a high impedance state. When at a high level NWE allows normal read operation.
    NOE
    Negative output enable, when at a high level holds the data output drivers in a high impedance state. When
    at a low level, the data output driver state is defined by NCS, NWE and CE. If this signal is not used it must
    be connected to VSS.
    CE
    Chip enable, when at a high level allows normal operation. When at a low level CE forces the SRAM to a
    precharge condition, holds the data output drivers in a high impedance state and disables all the input buffers
    except the NCS input buffer. If this signal is not used it must be connected to VDD.
    Notes:
    X: VI=VIH or VIL
    XX: VSS
    VI
    VDD
    NOE=H: High Z output state maintained
    for NCS=X, CE=X, NWE=X
    NCS
    A:3-7,12,14-16
    CE
    NWE
    NOE
    WE CS CE
    NWE CS CE OE
    (0 = high Z)
    Column Decoder
    Data Input/Output
    Row
    Decoder
    131,072 x 8
    Memory
    Array
    A:0-2, 8-11, 13
    #
    Signal
    All controls must be
    enabled for a signal to
    pass. (#: number of
    buffers, default = 1)
    1 = enabled
    Signal
    8
    DQ:0-7
    8
    8
    9
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    相關(guān)代理商/技術(shù)參數(shù)
    參數(shù)描述
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