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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MSM548262-70JS датащи(PDF) 7 Page - OKI electronic componets |
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MSM548262-70JS датащи(HTML) 7 Page - OKI electronic componets |
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7 / 37 page  ¡ Semiconductor MSM548262 7/37 AC Characteristics (2/3) Parameter Symbol Note Unit ns 45 40 35 ns 0 0 0 ns 0 0 0 ns 10 0 10 0 10 0 ns 10 10 10 tRWD tCWD tDZC tDZO tCSR tREF tWSR Max. Min. Max. Min. Max. Min. -80 -70 -60 ns 100 90 80 ms 8 8 8 0 0 0 tAWD ns 65 55 50 ns 20 — 20 — 15 — tOEA ns 10 10 10 ns 10 10 10 tCHR ns 0 0 0 tRPC tOEZ tOEH ns 15 15 10 tROH tRWH 12 10 10 tFSC 0 0 0 tCFH 12 10 10 tMS 0 0 0 tMH 12 10 10 tTHS 0 0 0 tTHH 12 10 10 tTLS 0 0 0 tTLH 12 10 10 tTRP 60 60 50 tTP 20 20 20 tRSD 80 70 60 tASD 45 45 40 tCSD 25 20 20 tTSL 5 5 5 13 13 ns ns ns ns ns ns ns ns ns ns 10k 10k 10k ns ns ns ns ns ns tRTH 65 60 50 ns 10k 10k 10k tATH 30 25 20 ns tCTH 25 20 15 ns tFSR tRFH ns 0 0 0 12 10 10 tFHR 55 55 50 ns ns 13 Column Address to First SC Delay Time 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 to CAS Delay Time Data to TRG Delay Time DSF Set-up Time referenced to RAS Write Per Bit Mask Data Hold Time Write Per Bit Mask Data Set-up Time TRG Command Hold Time Refresh Period DSF Hold Time referenced to RAS (1) RAS Hold Time referenced to TRG RAS Precharge to CAS Active Time RAS to WE Delay Time WE Hold Time Access Time from TRG RAS to First SC Delay Time (Read Transfer) TRG to RAS Precharge Time WE Set-up Time Last SC to TRG Lead Time Output Buffer Turn-off Delay from TRG DSF Hold Time referenced to RAS (2) DSF Hold Time referenced to CAS TRG Low Hold Time referenced to Column Address TRG Low Hold Time referenced to CAS TRG Precharge Time — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — DSF Set-up Time referenced to CAS TRG High Hold Time TRG High Set-up Time TRG Low Hold Time TRG Low Set-up Time TRG Low Hold Time referenced to RAS CAS to First SC Delay Time (Read Transfer) ns — 15 — 15 — 15 tTSD ns 40 10 40 10 30 10 tSDZ ns 25 25 20 tSRS 10 Serial Output Buffer Turn-off Delay from RAS TRG to First SC Delay Time (Read Transfer) Last SC to RAS Set-up Time (Serial Input) — — — |
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