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HYB514405BJ-70 Datasheet(PDF) 7 Page - Siemens Semiconductor Group |
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HYB514405BJ-70 Datasheet(HTML) 7 Page - Siemens Semiconductor Group |
7 / 25 page Semiconductor Group 7 HYB 514405BJ/BJL-50/-60/-70 1M x 4 EDO - DRAM CAS hold time t CSH 50 60 – 70 – ns CAS to RAS precharge time t CRP 5–5–5–ns Transition time (rise and fall) t T 150 1 50 150 ns 7 Refresh period t REF –16 – 16 –16 ms Refresh period for L-version t REF – 128 – 128 – 128 ms Read Cycle Access time from RAS t RAC – 50 – 60 – 70 ns 8, 9 Access time from CAS t CAC – 13 – 15 – 17 ns 8, 9 Access time from column address t AA – 25 – 30 – 35 ns 8,10 OE access time t OEA –13 – 15 –17 ns Column address to RAS lead time t RAL 25 – 30 – 35 – ns Read command setup time t RCS 0–0–0–ns Read command hold time t RCH 0–0–0–ns 11 Read command hold time referenced to RAS t RRH 0–0–0–ns 11 CAS to output in low-Z t CLZ 0–0–0–ns 8 Output buffer turn-off delay t OFF 013 0 15 017 ns 12 Output buffer turn-off delay from OE t OEZ 013 0 15 017 ns 12 Data to CAS low delay t DZC 0–0–0–ns 13 Data to OE low delay t DZO 0–0–0–ns 13 CAS high to data delay t CDD 10 – 13 – 15 – ns 14 OE high to data delay t ODD 10 – 13 – 15 – ns 14 Write Cycle Write command hold time t WCH 8–10 – 10 –ns Write command pulse width t WP 8–10 – 10 –ns Write command setup time t WCS 0–0–0–ns 15 AC Characteristics (cont’d) 5)6) T A = 0 to 70 ˚C, VCC = 5 V ± 10 %, tT = 2 ns Parameter Symbol Limit Values Unit Note -50 -60 -70 min. max. min. max. min. max. |
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