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HYM724000GS-50- Datasheet(PDF) 7 Page - Siemens Semiconductor Group |
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HYM724000GS-50- Datasheet(HTML) 7 Page - Siemens Semiconductor Group |
7 / 11 page Semiconductor Group 7 HYM724000/10GS-50/-60 4M x 72 ECC- Module AC Characteristics (note: 5,6,7,8) T A = 0 to 70 °C,VCC = 5.0 ± 10 % Parameter Symbol -50 -60 Unit Note min. max. min. max. common parameters Random read or write cycle time tRC 90 – 110 – ns RAS precharge time tRP 30 – 40 – ns RAS pulse width tRAS 50 100k 60 100k ns CAS pulse width tCAS 13 100k 15 100k ns Row address setup time tASR 5–5– ns 9 Row address hold time tRAH 8–8– ns 10 Column address setup time tASC 2–2– ns 11 Column address hold time tCAH 15 – 15 – ns 9 RAS to CAS delay time tRCD 16 32 18 40 12 RAS to column address delay time tRAD 11 20 13 25 ns 12 RAS hold time tRSH 18 – 20 – ns 9 CAS hold time tCSH 48 – 58 – ns 10 CAS to RAS precharge time t CRP 10 – 10 – ns 9 Transition time (rise and fall) tT 330 3 30 ns 7 Refresh period tREF –64 – 64 ms Read Cycle Access time from RAS tRAC –50 – 60 ns 13,14 Access time from CAS tCAC –18 – 20 ns 9,13,14 Access time from column address tAA –30 – 35 ns 9,13, 15 OE access time tOEA –18 – 20 ns 9,13 Column address to RAS lead time tRAL 30 – 35 – ns 9 Read command setup time tRCS 2–2– ns 11 Read command hold time tRCH 2–2– ns 11,16 Read command hold time referenced to RAS tRRH 0–0– ns 16 CAS to output in low-Z tCLZ 2–2– ns 11,13 Output buffer turn-off delay tOFF –18 – 20 ns 9,17 Output buffer turn-off delay from OE tOEZ –18 – 20 ns 9,17 |
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