參數(shù)資料
    型號: IDT723644L15PF8
    廠商: IDT, Integrated Device Technology Inc
    文件頁數(shù): 10/35頁
    文件大小: 0K
    描述: IC FIFO SYNC 2048X36 128QFP
    標(biāo)準(zhǔn)包裝: 1,000
    系列: 7200
    功能: 同步
    存儲容量: 72K(2K x 36)
    數(shù)據(jù)速率: 67MHz
    訪問時(shí)間: 15ns
    電源電壓: 4.5 V ~ 5.5 V
    工作溫度: 0°C ~ 70°C
    安裝類型: 表面貼裝
    封裝/外殼: 128-LQFP
    供應(yīng)商設(shè)備封裝: 128-TQFP(14x20)
    包裝: 帶卷 (TR)
    其它名稱: 723644L15PF8
    18
    COMMERCIALTEMPERATURERANGE
    IDT723624/723634/723644 CMOS SyncBiFIFO WITH BUS-MATCHING
    256 x 36 x 2, 512 x 36 x 2, 1,024 x 36 x 2
    Figure 6. Serial Programming of the Almost-Full Flag and Almost-Empty Flag Offset Values (IDT Standard and FWFT Modes)
    Figure 5. Parallel Programming of the Almost-Full Flag and Almost-Empty Flag Offset Values after Reset (IDT Standard and FWFT Modes)
    NOTES:
    1. tSKEW1 is the minimum time between the rising CLKA edge and a rising CLKB edge for
    FFB/IRB to transition HIGH in the next cycle. If the time between the rising edge of CLKA
    and rising edge of CLKB is less than tSKEW1, then
    FFB/IRB may transition HIGH one CLKB cycle later than shown.
    2. It is not necessary to program offset register bits on consecutive clock cycles. FIFO write attempts are ignored until
    FFA/IRA and FFB/IRB is set HIGH.
    3. Programmable offsets are written serially to the SD input in the order
    AFA offset (Y1), AEB offset (X1), AFB offset (Y2), and AEA offset (X2).
    NOTES:
    1. tSKEW1 is the minimum time between the rising CLKA edge and a rising CLKB edge for
    FFB/IRB to transition HIGH in the next cycle. If the time between the rising edge of CLKA
    and rising edge of CLKB is less than tSKEW1, then
    FFB/IRB may transition HIGH one CLKB cycle later than shown.
    2.
    CSA=LOW, W/RA=HIGH,MBA=LOW. It is not necessary to program offset register on consecutive clock cycles.
    3270 drw07
    CLKA
    MRS1,
    MRS2
    FFA/IRA
    CLKB
    FFB/IRB
    A0-A35
    FS1,FS0
    ENA
    tFSH
    tWFF
    tENH
    tENS2
    tSKEW1
    tDS
    tDH
    tWFF
    4
    0,0
    AFA Offset
    (Y1)
    AEB Offset
    (X1)
    AFB Offset
    (Y 2)
    AEA Offset
    (X 2)
    First Word to FIFO1
    12
    (1)
    tFSH
    tFSS
    SPM
    tFSS
    1
    2
    CLKA
    FFA/IRA
    tSENS
    tSENH
    FS0/SD(3)
    tSPH
    tSENS
    tSENH
    tFSS
    tWFF
    FS1/SEN
    AEA Offset
    (X2) LSB
    tSDS
    tSDH
    tSDS
    tSDH
    AFA Offset
    (Y1) MSB
    MRS1,
    MRS2
    4
    3270 drw08
    tFSS
    tFSH
    CLKB
    4
    SPM
    FFB/IRB
    tWFF
    tSKEW(1)
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