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SN74ACT7201LA20NP 数据表(PDF) 11 Page - Texas Instruments |
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SN74ACT7201LA20NP 数据表(HTML) 11 Page - Texas Instruments |
11 / 23 page SN74ACT7200L, SN74ACT7201LA, SN74ACT7202LA 256 × 9, 512 × 9, 1024 × 9 ASYNCHRONOUS FIRST-IN, FIRST-OUT MEMORIES SCAS221A – FEBRUARY 1993 – REVISED SEPTEMBER 1995 11 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PARAMETER MEASUREMENT INFORMATION R EF W tpd(R-E) tpd(W-E) Last Read Ignored Read First Write Additional Writes Valid D0 – D8 ta Figure 3. Empty-Flag Waveforms FL /RT tc(RT) tw(RT) tsu(RT) th(RT) W, R tpd(RT-FL) XO/HF, EF, FF Valid Flag NOTE A: The EF, FF, and XO/HF status flags are valid after completion of the retransmit cycle. Figure 4. Retransmit Waveforms |
类似零件编号 - SN74ACT7201LA20NP |
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类似说明 - SN74ACT7201LA20NP |
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