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MSM548262 Datasheet(PDF) 6 Page - OKI electronic componets |
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MSM548262 Datasheet(HTML) 6 Page - OKI electronic componets |
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6 / 37 page  ¡ Semiconductor MSM548262 6/37 AC Characteristics (1/3) Parameter Symbol Note Unit ns 150 140 — 120 ns 40 35 30 — ns 25 20 15 — ns 45 40 35 — ns 35 3 35 3 35 3 ns 100k 80 100k 70 100k 60 tRC tPRWC tAA tCAC tCPA tRASP tCAS tRCD Max. Min. Max. Min. Max. Min. -80 -70 -60 ns 90 90 — 85 ns 10k 25 10k 20 10k 15 14 20 20 20 ns 50 45 — 40 tPC tRAC ns 80 70 60 — 10 ns 20 0 20 0 15 0 tOFF ns — 60 — 60 — 50 ns — 25 — 20 — 15 tRSH ns — 80 — 70 — 60 tCSH tT tRP ns 10k 80 10k 70 10k 60 tRAS tRAD 14 15 15 15 tASR 0 0 0 tRAH 10 10 10 tASC 0 0 0 tCAH 12 10 10 tAR 55 55 50 tRCS 0 0 0 tRCH 11 0 0 0 tRRH 11 0 0 0 tWCS 0 0 0 tWCH 15 12 10 tWCR 55 55 50 tWP 15 12 10 tRWL 20 20 15 tCWL 20 20 15 8, 14 8, 15 8, 15 8, 14 7 ns 55 50 45 ns 40 35 30 ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns 195 185 — 170 tRWC tRAL tCRP ns — 40 — 35 — 30 10 10 10 tCP 10 10 10 ns ns 13 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — Access Time from Column Address Column Address Hold Time referenced to RAS Column Address Set-up Time Row Address Set-up Time Access Time from CAS Column Address Hold Time CAS Pulse Width CAS Precharge Time (Fast Page Mode) Access Time from CAS Precharge CAS to RAS Precharge Time CAS Hold Time Write Command to CAS Lead Time Output Buffer Turn-off Delay Fast Page Mode Cycle Time Fast Page Mode Read Modify Write Cycle Time Row Address Hold Time RAS Pulse Width (Fast Page Mode Only) Random Read or Write Cycle Time RAS to CAS Delay Time Read Command Hold Time Read Command Set-up Time Read Modify Write Cycle RAS Precharge Time Read Command Hold Time referenced to RAS Write Command to RAS Lead Time Access Time from RAS RAS to Column Address Delay Time Column Address to RAS Lead Time RAS Pulse Width RAS Hold Time Transition Time (Rise and Fall) Write Command Hold Time referenced to RAS Write Command Set-up Time Write Command Pulse Width Write Command Hold Time ns — 0 — 0 — 0 tDS ns 55 55 50 tDHR ns 15 12 10 tDH 12 12 Data Hold Time Data Hold Time referenced to RAS Data Set-up Time — — — — — — |
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