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5 MOSEL VITELIC V53C8258H V53C8258H Rev. 1.4 February 1997 AC Characteristics TA = 0°C to 70°C, VCC = 5 V ±10%, VSS = 0V unless otherwise noted AC Test conditions, input pulse levels 0 to 3V 35 40 45 50 # Symbol Symbol Parameter Min. Max. Min. Max. Min. Max. Min. Max. Unit Notes 1tRL1RH1 tRAS RAS Pulse Width 35 75K 40 75K 45 75K 50 75K ns 2tRL2RL2 tRC Read or Write Cycle Time 70 75 80 90 ns 3tRH2RL2 tRP RAS Precharge Time 25 25 25 30 ns 4tRL1CH1 tCSH CAS Hold Time 35 40 45 50 ns 5tCL1CH1 tCAS CAS Pulse Width 7899 ns 6tRL1CL1 tRCD RAS to CAS Delay 16 23 17 28 18 32 19 36 ns 7tWH2CL2 tRCS Read Command Setup Time 0000 ns 4 8tAVRL2 tASR Row Address Setup Time 0000 ns 9tRL1AX tRAH Row Address Hold Time 6789 ns 10 tAVCL2 tASC Column Address Setup Time 0000 ns 11 tCL1AX tCAH Column Address Hold Time 4567 ns 12 tCL1RH1(R) tRSH (R) RAS Hold Time (Read Cycle) 12 12 13 14 ns 13 tCH2RL2 tCRP CAS to RAS Precharge Time 5555 ns 14 tCH2WX tRCH Read Command Hold Time 0000 ns 5 Referenced to CAS 15 tRH2WX tRRH Read Command Hold Time 0000 ns 5 Referenced to RAS 16 tOEL1RH2 tROH RAS Hold Time 8 8 9 10 ns Referenced to OE 17 tGL1QV tOAC Access Time from OE 12 12 13 14 ns 18 tCL1QV tCAC Access Time from CAS (EDO) 12 12 13 14 ns 6, 7 19 tRL1QV tRAC Access Time from RAS 35 40 45 50 ns 6, 8, 9 20 tAVQV tCAA Access Time from Column 18 20 22 24 ns 6, 7, 10 Address 21 tCL1QX tLZ CAS to Low-Z Output 0000 ns 16 22 tCH2QZ tHZ Output buffer turn-off delay time 0 6 0 6 0 7 0 8 ns 16 23 tRL1AX tAR Column Address Hold Time 28 30 35 40 ns from RAS 24 tRL1AV tRAD RAS to Column Address 11 17 12 20 13 23 14 26 ns 11 Delay Time 25 tCL1RH1(W) tRSH (W) RAS or CAS Hold Time 12 12 13 14 ns in Write Cycle 26 tWL1CH1 tCWL Write Command to CAS 12 12 13 14 ns Lead Time JEDEC |
