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HM5117400BLS-8 Datasheet(PDF) 7 Page - Hitachi Semiconductor |
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HM5117400BLS-8 Datasheet(HTML) 7 Page - Hitachi Semiconductor |
7 / 25 page HM5117400B Series 7 AC Characteristics (Ta = 0 to +70 C, V CC = 5 V 10%, V SS = 0 V) *1, *2, *18, *19 Test Conditions Input rise and fall time: 5 ns Input timing reference levels : 0.8 V, 2.4 V Output load : 2 TTL gate + C L (100 pF) (Including scope and jig) Read, Write, Read-Modify-Write and Refresh Cycles (Common parameters) HM5117400B -6 -7 -8 Parameter Symbol Min Max Min Max Min Max Unit Notes Random read or write cycle timet RC 110 — 130 — 150 — ns precharge timet RP 40 — 50 — 60 — ns precharge timet CP 10 — 10 — 10 — ns pulse widtht RAS 60 10000 70 10000 80 10000 ns pulse widtht CAS 15 10000 18 10000 20 10000 ns Row address setup timet ASR 0 — 0 — 0 — ns Row address hold timet RAH 10 — 10 — 10 — ns Column address setup timet ASC 0 — 0 — 0 — ns Column address hold timet CAH 10 — 15 — 15 — ns to delay timet RCD 20 45 20 52 20 60 ns3 to column address delay timet RAD 15 30 15 35 15 40 ns4 hold timet RSH 15 — 18 — 20 — ns hold timet CSH 60 — 70 — 80 — ns to precharge timet CRP 5 — 5 — 5 — ns to Din delay timet OED 15 — 18 — 20 — ns5 delay time from Dint DZO 0 — 0 — 0 — ns6 delay time from Dint DZC 0 — 0 — 0 — ns6 Transition time (rise and fall)t T 3 50 3 50 3 50 ns7 |
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