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MSC23409C Datasheet(PDF) 6 Page - OKI electronic componets |
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MSC23409C Datasheet(HTML) 6 Page - OKI electronic componets |
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6 / 13 page  MSC23409C/CL-xxDS9 ¡ Semiconductor 6/13 AC Characteristics (1/2) — Parameter Symbol MSC23409C/CL MSC23409C/CL Unit Min. Max. MSC23409C/CL Random Read or Write Cycle Time Min. Max. Min. Max. Note (VCC = 5 V ±10%, Ta = 0°C to 70°C) Note 1,2,3,9,10 tRC 110 — 130 150 — ns 4, 5, 6 — Fast Page Mode Cycle Time tPC 40 — 45 50 — ns 70 Access Time from RAS tRAC —60— —80 ns 20 Access Time from CAS tCAC —15— —20 ns 35 Access Time from Column Address tAA —30— —40 ns 40 Access Time from CAS Precharge tCPA —35— —45 ns — Output Low Impedance Time from CAS tCLZ 0— 0 0 — ns 20 Output Buffer Turn-off Delay Time tOFF 0150 020 ns 50 Transition Time tT 3503 350 ns 16 Refresh Period tREF —16— —16 ms 128 Refresh Period (L-version) tREF — 128 — — 128 ms — RAS Precharge Time tRP 40 — 50 60 — ns 10K RAS Pulse Width tRAS 60 10K 70 80 10K ns 100K RAS Pulse Width (Fast Page Mode) tRASP 60 100K 70 80 100K ns — RAS Hold Time tRSH 15 — 20 20 — ns — CAS Precharge Time tCP 10 — 10 10 — ns 10K CAS Pulse Width tCAS 15 10K 20 20 10K ns — CAS Hold Time tCSH 60 — 70 80 — ns — CAS to RAS Precharge Time tCRP 5— 5 5 — ns 50 RAS to CAS Delay Time tRCD 20 45 20 20 60 ns 35 RAS to Column Address Delay Time tRAD 15 30 15 15 40 ns — Row Address Set-up Time tASR 0— 0 0 — ns — Row Address Hold Time tRAH 10 — 10 10 — ns — Column Address Set-up Time tASC 0— 0 0 — ns — Column Address Hold Time tCAH 15 — 15 15 — ns — Column Address Hold Time from RAS tAR 50 — 55 60 — ns — Column Address to RAS Lead Time tRAL 30 — 35 40 — ns 4, 5 4, 6 4 4 7 3 5 6 -60DS9 -70DS9 -80DS9 |
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