參數(shù)資料
型號: SN74ACT3641PQ
廠商: Texas Instruments, Inc.
英文描述: Low-Voltage Quad 2-Input OR Gate with 5V-Tolerant Inputs, Pb-free; Package: SOEIAJ-14; No of Pins: 14; Container: Tape and Reel; Qty per Container: 2000
中文描述: 1024】36時鐘先入先出存儲器
文件頁數(shù): 18/26頁
文件大小: 379K
代理商: SN74ACT3641PQ
SN74ACT3641
1024
×
36
CLOCKED FIRST-IN, FIRST-OUT MEMORY
SCAS338C – JANUARY 1994 – REVISED OCTOBER 1997
18
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
FIFO Filled to First Retransmit Word
ìììì
ìììì
CLKA
IR
tsu(RM)
th(RM)
RTM
tsk(1)
CLKB
tpd(C-IR)
1
2
One or More Write Locations Available
tsk(1) is the minimum time between a rising CLKB edge and a rising CLKA edge for IR to transition high in the next CLKA cycle. If the time
between the rising CLKB edge and rising CLKA edge is less than tsk(1), IR can transition high one CLKA cycle later than shown.
Figure 12. IR Timing From the End of Retransmit Mode When One or More Write Locations Are Available
ìììì
ìììì
CLKA
AF
tsu(RM)
th(RM)
RTM
tsk(2)
(1024 – Y) or More Words Past First Retransmit Word
CLKB
tpd(C-AE)
1
2
(Y + 1) or More Write Locations Available
tsk(2) is the minimum time between a rising CLKB edge and a rising CLKA edge for AF to transition high in the next CLKA cycle. If the time
between the rising CLKB edge and rising CLKA edge is less than tsk(2), AF can transition high one CLKA cycle later than shown.
NOTE A: Y is the value loaded in the AF flag offset register.
Figure 13. AF Timing From the End of Retransmit Mode When (Y + 1)
or More Write Locations Are Available
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PDF描述
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SN74ACT3651PQ Low-Voltage CMOS Octal Transparent Latch; Package: TSSOP 20 LEAD; No of Pins: 20; Container: Tape and Reel; Qty per Container: 2500
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相關(guān)代理商/技術(shù)參數(shù)
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SN74ACT3651-20PBC 制造商:Rochester Electronics LLC 功能描述:- Bulk
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