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UPD43256BGW-A12X-9JL Datasheet(PDF) 11 Page - NEC |
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UPD43256BGW-A12X-9JL Datasheet(HTML) 11 Page - NEC |
11 / 20 page 11 µPD43256B-X Data Sheet M11012EJ4V0DS Write Cycle (1/2) Parameter Symbol VCC ≥ 4.5 V Unit Con- µPD43256B-70X µPD43256B-85X µPD43256B-AxxX µPD43256B-BxxX dition MIN. MAX. MIN. MAX. MIN. MAX. Write cycle time tWC 70 85 100 ns /CS to end of write tCW 60 70 80 ns Address valid to end of write tAW 60 70 80 ns Write pulse width tWP 55 60 70 ns Data valid to end of write tDW 30 35 40 ns Data hold time tDH 555 ns Address setup time tAS 000 ns Write recovery time tWR 000 ns /WE to output in high impedance tWHZ 30 30 35 ns Note Output active from end of write tOW 555 ns Note See the output load. Remark These AC characteristics are in common regardless of package types and L, LL versions. Write Cycle (2/2) Parameter Symbol VCC ≥ 3.0 V VCC ≥ 2.7 V Unit Con- µPD43256B- A85X µPD43256B- A10X µPD43256B- A12X µPD43256B- B10X µPD43256B- B12X µPD43256B- B15X dition MIN. MAX. MIN. MAX. MIN. MAX. MIN. MAX. MIN. MAX. MIN. MAX. Write cycle time tWC 85 100 120 100 120 150 ns /CS to end of write tCW 70 70 90 70 90 100 ns Address valid to end of write tAW 70 70 90 70 90 100 ns Write pulse width tWP 60 60 80 60 80 90 ns Data valid to end of write tDW 60 60 70 60 70 80 ns Data hold time tDH 555555 ns Address setup time tAS 000000 ns Write recovery time tWR 000000 ns /WE to output in high impedance tWHZ 35 35 40 35 40 40 ns Note Output active from end of write tOW 555555 ns Note See the output load. Remark These AC characteristics are in common regardless of package types. • |
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