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K9S1208V0M-SSB0 Datasheet(PDF) 9 Page - Samsung semiconductor |
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K9S1208V0M-SSB0 Datasheet(HTML) 9 Page - Samsung semiconductor |
9 / 33 page K9S1208V0M-SSB0 SmartMediaTM 9 AC Characteristics for Operation NOTE : 1. The time to Ready depends on the value of the pull-up resistor tied R/B pin. 2. To break the sequential read cycle, CE must be held high for longer time than tCEH. 3. If reset command(FFh) is written at Ready state, the device goes into Busy for maximum 5us. Parameter Symbol Min Max Unit Data Transfer from Cell to Register tR - 12 µs ALE to RE Delay( ID read ) tAR1 10 - ns ALE to RE Delay(Read cycle) tAR2 50 - ns Ready to RE Low tRR 20 - ns RE Pulse Width tRP 30 - ns WE High to Busy tWB - 100 ns Read Cycle Time tRC 50 - ns RE Access Time tREA - 35 ns RE High to Output Hi-Z tRHZ 15 30 ns CE High to Output Hi-Z tCHZ - 20 ns RE High Hold Time tREH 15 - ns Output Hi-Z to RE Low tIR 0 - ns Last RE High to Busy(at sequential read) tRB - 100 ns CE High to Ready(in case of interception by CE at read) tCRY - 50 +tr(R/B)(1) ns CE High Hold Time(at the last serial read)(2) tCEH 100 - ns CE Access Time tCEA - 45 ns WE High to RE Low tWHR 60 - ns Device Resetting Time(Read/Program/Erase) tRST - 5/10/500(3) µs AC Timing Characteristics for Command / Address / Data Input Parameter Symbol Min Max Unit CLE setup Time tCLS 0 - ns CLE Hold Time tCLH 10 - ns CE setup Time tCS 0 - ns CE Hold Time tCH 10 - ns WE Pulse Width tWP 25(1) - ns ALE setup Time tALS 0 - ns ALE Hold Time tALH 10 - ns Data setup Time tDS 20 - ns Data Hold Time tDH 10 - ns Write Cycle Time tWC 50 - ns WE High Hold Time tWH 15 - ns NOTE : 1. If tCS is set less than 10ns, tWP must be minimum 35ns, otherwise, tWP may be minimum 25ns. |
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