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HM51W16165LTT-5 Datasheet(PDF) 11 Page - Elpida Memory |
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HM51W16165LTT-5 Datasheet(HTML) 11 Page - Elpida Memory |
11 / 35 page HM51W16165 Series, HM51W18165 Series Data Sheet E0153H10 11 AC Characteristics (Ta = 0 to +70°C, V CC = 3.3 V ± 0.3 V, VSS = 0 V)* 1, *2, *18, *19, *20 Test Conditions • Input rise and fall time: 2 ns • Input levels: 0 V, 3.0 V • Input timing reference levels: 0.8 V, 2.0 V • Output timing reference levels: 0.8 V, 2.0 V • Output load: 1 TTL gate + C L (100 pF) (Including scope and jig) Read, Write, Read-Modify-Write and Refresh Cycles (Common parameters) HM51W16165/HM51W18165 -5 -6 -7 Parameter Symbol Min Max Min Max Min Max Unit Notes Random read or write cycle time t RC 84 — 104 — 124 — ns RAS precharge time t RP 30 — 40 — 50 — ns CAS precharge time t CP 8—10 — 13 —ns RAS pulse width t RAS 50 10000 60 10000 70 10000 ns CAS pulse width t CAS 8 10000 10 10000 13 10000 ns Row address setup time t ASR 0—0—0—ns Row address hold time t RAH 8—10 — 10 —ns Column address setup time t ASC 0—0—0—ns 21 Column address hold time t CAH 8—10 — 13 —ns 21 RAS to CAS delay time t RCD 12 37 14 45 14 52 ns 3 RAS to column address delay time t RAD 10 25 12 30 12 35 ns 4 RAS hold time t RSH 10 — 13 — 13 — ns CAS hold time t CSH 35 — 40 — 45 — ns 23 CAS to RAS precharge time t CRP 5—5—5—ns 22 OE to Din delay time t OED 13 — 15 — 18 — ns 5 OE delay time from Din t DZO 0—0—0—ns 6 CAS delay time from Din t DZC 0—0—0—ns 6 Transition time (rise and fall) t T 250 2 50 250 ns 7 |
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