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V53C317405A50 Datasheet(PDF) 5 Page - Mosel Vitelic, Corp |
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V53C317405A50 Datasheet(HTML) 5 Page - Mosel Vitelic, Corp |
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5 / 24 page  5 MOSEL VITELIC V53C317405A V53C317405A Rev. 0.2 September 1998 AC Characteristics(5, 6) TA = 0 to 70 ˚C,VCC = 3.3 V ± 10 %, tT = 2 ns # Symbol Parameter -50 -60 Unit Note min. max. min. max. Common Parameters 1tRC Random read or write cycle time 84 – 104 – ns 2tRP RAS precharge time 30 – 40 – ns 3tRAS RAS pulse width 50 10k 60 10k ns 4tCAS CAS pulse width 8 10k 10 10k ns 5tASR Row address setup time 0–0– ns 6tRAH Row address hold time 8 – 10 – ns 7tASC Column address setup time 0–0– ns 8tCAH Column address hold time 8 – 10 – ns 9tRCD RAS to CAS delay time 12 37 14 45 ns 10 tRAD RAS to column address delay 10 25 12 30 ns 11 tRSH RAS hold time 13 15 – ns 12 tCSH CAS hold time 40 50 – ns 13 tCRP CAS to RAS precharge time 5–5– ns 14 tT Transition time (rise and fall) 1 50 1 50 ns 7 15 tREF Refresh period – 32 – 32 ms Read Cycle 16 tRAC Access time from RAS –50–60 ns 8, 9 17 tCAC Access time from CAS –13–15 ns 8, 9 18 tCAA Access time from column address – 25 – 30 ns 8,10 19 tOEA OE access time – 13 – 15 ns 20 tRAL Column address to RAS lead time 25 – 30 – ns 21 tRCS Read command setup time 0–0– ns 22 tRCH Read command hold time 0–0– ns 11 23 tRRH Read command hold time referenced to RAS 0–0– ns 11 24 tCLZ CAS to output in low-Z 0–0– ns 8 25 tOFF Output buffer turn-off delay 0 13 0 15 ns 12 26 tOEZ Output turn-off delay from OE 013015 ns 12 27 tDZC Data to CAS low delay 0–0– ns 13 28 tDZO Data to OE low delay 0–0– ns 13 29 tCDD CAS high to data delay 10 – 13 – ns 14 30 tODD OE high to data delay 10 – 13 – ns 14 |
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