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  • 參數(shù)資料
    型號: M87C257-45XF3TR
    廠商: 意法半導(dǎo)體
    元件分類: DRAM
    英文描述: ADDRESS LATCHED 256K 32K x 8 UV EPROM and OTP EPROM
    中文描述: 地址鎖存256K 32K的× 8紫外線EPROM和檢察官辦公室存儲器
    文件頁數(shù): 6/13頁
    文件大?。?/td> 143K
    代理商: M87C257-45XF3TR
    Symbol
    Alt
    Parameter
    Test
    Condition
    M87C257
    -10
    Unit
    -90
    -12
    -15/-20
    Min Max Min Max Min Max Min Max
    t
    AVQV
    t
    ACC
    Address Valid to
    Output Valid
    Address Valid to
    Address Strobe Low
    E = V
    IL
    , G = V
    IL
    90
    100
    120
    150
    ns
    t
    AVASL
    t
    AL
    7
    7
    7
    7
    ns
    t
    ASHASL
    t
    LL
    Address Strobe High
    to Address Strobe Low
    35
    35
    35
    35
    ns
    t
    ASLAX
    t
    LA
    Address Strobe Low to
    Address Transition
    20
    20
    20
    20
    ns
    t
    ASLGL
    t
    LOE
    Address Strobe Low
    to Output Enable Low
    20
    20
    20
    20
    ns
    t
    ELQV
    t
    CE
    Chip Enable Low to
    Output Valid
    G = V
    IL
    90
    100
    120
    150
    ns
    t
    GLQV
    t
    OE
    Output Enable Low to
    Output Valid
    E = V
    IL
    40
    40
    50
    60
    ns
    t
    EHQZ
    (2)
    t
    DF
    Chip Enable High to
    Output Hi-Z
    G = V
    IL
    0
    40
    0
    30
    0
    40
    0
    40
    ns
    t
    GHQZ
    (2)
    t
    DF
    Output Enable High to
    Output Hi-Z
    E = V
    IL
    0
    40
    0
    30
    0
    40
    0
    40
    ns
    t
    AXQX
    t
    OH
    Address Transition to
    Output Transition
    E = V
    IL
    , G = V
    IL
    0
    0
    0
    0
    ns
    Notes:
    1. V
    must be applied simultaneously with or before V
    PP
    and removed simultaneously or after V
    PP
    .
    2. Sampled only, not 100% tested.
    Table 8B. Read Mode AC Characteristics
    (1)
    (T
    A
    = 0 to 70
    °
    C, –40 to 85
    °
    C, –40 to 105
    °
    C or –40 to 125
    °
    C; V
    CC
    = 5V
    ±
    5% or 5V
    ±
    10%; V
    PP
    = V
    CC
    )
    AI00931
    tAXQX
    tEHQZ
    DATA OUT
    A0-A14
    E
    G
    Q0-Q7
    tASLAX
    tGHQZ
    tGLQV
    tELQV
    VALID
    Hi-Z
    tAVQV
    tASLGL
    tASHASL
    tAVASL
    ASVPP
    Figure 5. Read Mode AC Waveforms
    6/13
    M87C257
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