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MSM54V32126A-50GS-K Datasheet(PDF) 7 Page - OKI electronic componets |
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MSM54V32126A-50GS-K Datasheet(HTML) 7 Page - OKI electronic componets |
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7 / 26 page  7/26 ¡ Semiconductor MSM54V32126A AC Characteristics (2/2) Parameter Symbol Note Unit — tDS tRWD tCWD tDZC tDZO tCSR tREF tRASS Max. Min. Max. Min. MSM54V32126A -60 MSM54V32126A -50 tDHR tAWD tOEA tCHR tRPC tOEZ tOEH tROH tRPS tCHS tDH Column Address to WE Delay Time CAS Hold Time for CAS before RAS Cycle CAS Set-up Time for CAS before RAS Cycle CAS to WE Delay Time Data Hold Time Data Hold Time referenced to RAS Data Set-up Time Data to CAS Delay Time Data to OE Delay Time CAS Hold Time (CAS before RAS Self-Refresh) OE Command Hold Time Refresh Period RAS Hold Time referenced to OE RAS Precharge to CAS Active Time RAS to WE Delay Time RAS Precharge Time (CAS before RAS Self-Refresh) Access Time from OE RAS Pulse Width (CAS before RAS Self-Refresh) Output Buffer Turn-off Delay Time from OE ns — 0 0 ns 40 35 ns 0 0 ns 0 0 ns 20 3 20 3 ns 10 8 ns 80 70 ms 8 8 100 100 ns 40 35 ns 50 45 ns 18 15 ns 10 9 ns 10 8 ns 10 10 ns 12 10 130 110 0 0 8 8 ms ns ns ns 10 8 7, 12 7, 12 8 —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— —— tWCR tWP tRWL tCWL Write Command to CAS Lead Time Write Command to RAS Lead Time Write Command Hold Time referenced to RAS Write Command Pulse Width 40 35 10 9 10 9 10 9 ns ns ns ns — — — — — — — — tWEZ Output Buffer Turn-off Delay Time from WE 3 3ns 20 20 5 5 tOCH OE "L" to CAS "H" Lead Time ns 10 10 — — tCHO CAS "H" to OE "L" Lead Time ns 10 10 — — tOEP OE Precharge Time ns 12 10 — — tOED OE to Data-in Delay Time ns 12 12 — — tCPT CAS Precharge Time (Refresh Counter Test) ns 30 25 — — MSM54V32126A -45 — Max. Min. 0 32 0 0 20 3 6 65 8 100 30 42 13 8 6 10 10 100 0 7— — — — — — — — — — — — — — — — — 30 8 8 8 — — — — 320 10 — 10 — 10 — 12 — 20 — tWPE WE Pulse Width (Output Disable) ns 12 10 — — 10 — 14 15 12 13 12 (VCC = 3.3 V ±0.3 V, Ta = 0°C to 70°C) Note 1, 2, 3 |
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