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HM51W16400LTS-5 Datasheet(PDF) 12 Page - Hitachi Semiconductor |
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HM51W16400LTS-5 Datasheet(HTML) 12 Page - Hitachi Semiconductor |
12 / 33 page HM51W16400 Series, HM51W17400 Series 12 Read Cycle HM51W16400/HM51W17400 -5 -6 -7 Parameter Symbol Min Max Min Max Min Max Unit Notes Access time from RAS t RAC — 50 — 60 — 70 ns 8, 9, 20 Access time from CAS t CAC — 13 — 15 — 18 ns 9, 10, 17, 20 Access time from address t AA — 25 — 30 — 35 ns 9, 11, 17, 20 Access time from OE t OEA — 13 — 15 — 18 ns 9, 20 Read command setup time t RCS 0— 0— 0— ns Read command hold time to CAS t RCH 0— 0— 0— ns 12 Read command hold time to RAS t RRH 0— 0— 0— ns 12 Column address to RAS lead time t RAL 25 — 30 — 35 — ns Column address to CAS lead time t CAL 25 — 30 — 35 — ns CAS to output in low-Z t CLZ 0— 0— 0— ns Output data hold time t OH 3— 3— 3— ns Output data hold time from OE t OHO 3— 3— 3— ns Output buffer turn-off time t OFF —13 — 15 —15 ns 13 Output buffer turn-off to OE t OEZ —13 — 15 —15 ns 13 CAS to Din delay time t CDD 13 — 15 — 18 — ns 5 Write Cycle HM51W16400/HM51W17400 -5 -6 -7 Parameter Symbol Min Max Min Max Min Max Unit Notes Write command setup time t WCS 0— 0— 0— ns 14 Write command hold time t WCH 8 — 10 — 15 — ns Write command pulse width t WP 8 — 10 — 10 — ns Write command to RAS lead time t RWL 13 — 15 — 18 — ns Write command to CAS lead time t CWL 13 — 15 — 18 — ns Data-in setup time t DS 0— 0— 0— ns 15 Data-in hold time t DH 8 — 10 — 15 — ns 15 |
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