• 參數資料
    型號: PSD413A1
    廠商: 意法半導體
    英文描述: Low Cost Field Programmable Microcontroller Peripherals
    中文描述: 低成本現場可編程微控制器外圍設備
    文件頁數: 87/123頁
    文件大小: 657K
    代理商: PSD413A1
    PSD4XX Famly
    84
    Explanation of AC Symbols for Non ZPLD Timing.
    Example:
    t
    AVLX
    Time from Address Valid to ALE Invalid.
    A
    – Address
    C
    – Power Down
    D
    – Input Data
    E
    – E
    H
    – Logic Level High
    I
    – Interrupt
    L
    – Logic Level Low or ALE
    N
    – Reset
    P
    – Port Signal
    Q
    – Output Data
    R
    – WR, UDS, LDS, DS, IORD, PSEN
    S
    – Chip Select
    T
    – R/W
    t
    – Time
    V
    – Valid
    X
    – No Longer a Valid Logic Level
    Z
    – Float
    -70
    -90*
    -15
    EPROM_CMiser
    ON
    Symbol
    Parameter
    Conditions
    Min Max Min Max Min Max
    Unit
    t
    LVLX
    t
    AVLX
    t
    LXAX
    t
    AVQV
    ALE or AS Pulse Width
    Address Setup Time
    Address Hold Time
    Address Valid to Data
    Valid
    CS Valid to Data Valid
    RD to Data Valid
    8/16-Bit Bus
    RD to Data Valid 8-Bit
    Bus, 8031 Separate
    Mode
    RD Data Hold Time
    RD Pulse Width
    RD to Data High-Z
    E Pulse Width
    R/W Setup Time
    to Enable
    R/W Hold Time After
    Enable
    18
    5
    7
    20
    6
    8
    28
    10
    11
    0
    0
    0
    ns
    ns
    ns
    (Note 3)
    (Note 3)
    (Note 3)
    70
    90
    150
    Add 10
    ns
    t
    SLQV
    80
    100
    150
    Add 10
    ns
    (Note 1)
    20
    32
    40
    0
    ns
    t
    RLQV
    (Note 2)
    32
    38
    45
    0
    ns
    t
    RHQX
    t
    RLRH
    t
    RHQZ
    t
    EHEL
    t
    THEH
    (Note 1)
    (Note 1)
    (Note 1)
    0
    0
    0
    0
    0
    0
    0
    ns
    ns
    ns
    ns
    30
    32
    38
    22
    25
    33
    30
    32
    38
    8
    10
    18
    0
    ns
    t
    ELTL
    0
    0
    0
    0
    ns
    In 16-Bit Data Bus
    Mode (Note 9)
    In 8-Bit Data Bus
    Mode (Note 9)
    20
    30
    38
    0
    ns
    t
    AVPV
    Address Input Valid to
    Address Output Delay
    22
    32
    48
    0
    ns
    Read Timng
    (5 V ± 10% Versions)
    NOTES:
    1.
    RD timing has the same timing as PSEN, DS, LDS, UDS signals.
    RD and PSEN have the same timing for 8031 mode.
    Any input used to select an internal PSD4XX function.
    In multiplexed mode latched address generated from ADIO delay to address output on any Port.
    2.
    3.
    4.
    *
    The -90 speed is available only on Industrial Temperature Range product.
    13.8 Microcontroller Interface – AC/DC Parameters
    (5 V ± 10% Versions)
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