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DS2152L Datasheet(PDF) 83 Page - Dallas Semiconductor |
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DS2152L Datasheet(HTML) 83 Page - Dallas Semiconductor |
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83 / 94 page  DS2152 83 of 93 AC CHARACTERISTICS - MULTIPLEXED PARALLEL (0 °C to 70°C; V DD=5V ± 5% for DS2152L; PORT (MUX=1) -40 °C to +85°C; V DD=5V ± 5% for DS2152LN) PARAMETER SYMBOL MIN TYP MAX UNITS NOTES Cycle Time tCYC 200 ns Pulse Width, DS Low or RD High PWEL 100 ns Pulse Width, DS High or RD Low PWEH 100 ns Input Rise/Fall Times tR, tF 20 ns R/ W Hold Time tRWH 10 ns R/ W Setup Time Before DS High tRWS 50 ns CS Setup Time Before DS, WR or RD active tCS 20 ns CS Hold Time tCH 0 ns Read Data Hold Time tDHR 10 50 ns Write Data Hold Time tDHW 0 ns Muxed Address Valid to AS or ALE Fall tASL 15 ns Muxed Address Hold Time tAHL 10 ns Delay Time, DS, WR or RD to AS or ALE Rise tASD 20 ns Pulse Width AS or ALE High PWASH 30 ns Delay Time, AS or ALE to DS, WR or RD tASED 10 ns Output Data Delay Time from DS or RD tDDR 20 80 ns Data Setup Time tDSW 50 ns (see Figures 16-1 to 16-3 for details) |
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