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ICM7170 Datasheet(PDF) 5 Page - Rochester Electronics |
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ICM7170 Datasheet(HTML) 5 Page - Rochester Electronics |
5 / 14 page ICM7170 Specification Number ICM7170_IM (IL) REV - Page 5 of 14 4 AC Electrical Specifications TA = -40oC to 85oC, VDD = +5V ± 10%, VBACKUP = VDD, D0 - D7 Load Capacitance = 150pF, VIL = 0.4V, VlH = 2.8V, Unless Otherwise Specified PARAMETER MIN MAX UNITS READ CYCLE TIMING READ to DATA Valid, tRD - 250 ns ADDRESS Valid to DATA Valid, tACC - 300 ns READ Cycle Time, tCYC 400 - ns Read High Time, tRH 150 - ns RD High to Bus Three-State, tRH - 25 ns ADDRESS to READ Set Up Time, tAS 50 - ns ADDRESS HOLD Time After READ, tAR 0 - ns WRITE CYCLE TIMING ADDRESS Valid to WRITE Strobe, tAD 50 - ns ADDRESS Hold Time for WRITE, tWA 0 - ns WRITE Pulse Width, Low, tWL 100 - ns WRITE High Time, tWH 300 - ns DATA IN to WRITE Set Up Time, tDW 100 - ns DATA IN Hold Time After WRITE, tWD 30 - ns WRITE Cycle Time, tCYC 400 - ns MULTIPLEXED MODE TIMING ALE Pulse Width, High, tLL 50 - ns ADDRESS to ALE Set Up Time, tAL 30 - ns ADDRESS Hold Time After ALE, tLA 30 - ns Timing Diagrams FIGURE 1. READ CYCLE TIMING FOR NON-MULTIPLEXED BUS (ALE = VIH, WR = VIH) A0 - A4, CS RD D0 - D7 ADDRESS VALID, CS LOW tAR OUTPUT DATA VALID tACC tRD tAS tRX tCYC ICM7170 |
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