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Q67100-Q2064 Datasheet(PDF) 7 Page - Siemens Semiconductor Group |
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Q67100-Q2064 Datasheet(HTML) 7 Page - Siemens Semiconductor Group |
7 / 10 page Semiconductor Group 7 HYM 321005S/GS-50/-60 1M × 32-Bit EDO-Module AC Characteristics 5)6) T A = 0 to 70 °C,VCC = 5 V ± 10 %, tT = 2 ns Parameter Symbol Limit Values Unit Note -50 -60 min. max. min. max. common parameters Random read or write cycle time t RC 84 – 104 – ns RAS precharge time t RP 30 – 40 – ns RAS pulse width t RAS 50 10k 60 10k ns CAS pulse width t CAS 8 10k 10 10k ns Row address setup time tASR 0– 0– ns Row address hold time tRAH 8– 10 – ns Column address setup time tASC 0– 0– ns Column address hold time tCAH 8– 10 – ns RAS to CAS delay time tRCD 12 37 14 45 ns RAS to column address delay time tRAD 10 25 12 30 ns RAS hold time tRSH 13 15 – ns CAS hold time tCSH 40 50 – ns CAS to RAS precharge time tCRP 5– 5– ns Transition time (rise and fall) tT 1 50 1 50 ns 7 Refresh period t REF –16 – 16 ms Read Cycle Access time from RAS t RAC – 50 – 60 ns 8, 9 Access time from CAS t CAC – 13 – 15 ns 8, 9 Access time from column address t AA – 25 – 30 ns 8,10 Column address to RAS lead time t RAL 25 – 30 – ns Read command setup time t RCS 0– 0– ns Read command hold time tRCH 0– 0– ns 11 Read command hold time referenced to RAS tRRH 0– 0– ns 11 CAS to output in low-Z t CLZ 0– 0– ns 8 Output buffer turn-off delay t OFF 0 13 0 15 ns 12 |
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