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SN74ACT3638_05 Datasheet, PDF (13/33 Pages) Texas Instruments – 512 × 32 × 2 CLOCKED BIDIRECTIONAL FIRST-IN, FIRST-OUT MEMORY | |||
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CLKA
tc
tw(CLKH)
tw(CLKL)
SN74ACT3638
512 Ã 32 Ã 2
CLOCKED BIDIRECTIONAL FIRST-IN, FIRST-OUT MEMORY
SCAS228D â JUNE 1992 â REVISED APRIL 1998
tsu(EN)
th(EN)
IRA
ÃÃÃ CSA
ÃÃÃÃÃÃÃÃ ÃÃÃÃÃÃ W/RA
ÃÃÃÃÃÃÃÃ ÃÃÃ MBA
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ ÃÃÃÃÃÃÃÃÃÃÃÃÃ ÃÃÃÃÃÃ ENA
tsu(EN)
tsu(EN)
tsu(EN)
tsu(EN)
th(EN)
th(EN)
th(EN)
th(EN) tsu(EN)
th(EN) tsu(EN)
th(EN)
ÃÃÃÃÃÃÃÃÃÃttthhh(((EEEÃÃÃÃÃNNN))) ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ
ÃÃÃÃÃÃÃÃ ÃÃÃÃÃÃ ÃÃÃÃÃÃÃÃÃÃÃÃÃÃ A0âA31
tsu(D)
W1â
th(D)
W2â
No Operation
â Written to FIFO1
Figure 3. Port-A Write-Cycle Timing for FIFO1
CLKB
tc
tw(CLKH)
tw(CLKL)
tsu(EN)
th(EN)
IRB
tsu(EN)
th(EN)
CSB
ÃÃÃ
th(EN)
ÃÃÃÃÃÃÃÃ ÃÃÃ W/RB
tsu(EN)
th(EN)
ÃÃÃÃÃÃÃ th(EN)
ÃÃÃÃÃÃÃÃ ÃÃÃ MBB
tsu(EN)
th(EN)
ÃÃÃÃÃÃÃ th(EN)
ÃÃÃÃÃÃÃÃ ÃÃÃÃÃÃ ÃÃÃÃÃÃÃ ÃÃÃÃÃÃÃ ENB
tsu(EN)
th(EN) tsu(EN)
th(EN) tsu(EN)
th(EN)
ÃÃÃÃÃÃÃÃ ÃÃÃÃÃÃ ÃÃÃÃÃÃÃÃÃÃÃÃÃÃ B0âB31
tsu(D)
W1â¡
th(D)
W2â¡
No Operation
â¡ Written to FIFO2
Figure 4. Port-B Write-Cycle Timing for FIFO2
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