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ICM7170 View Datasheet(PDF) - Rochester Electronics

Part Name
Description
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ICM7170
ROCHESTER
Rochester Electronics ROCHESTER
ICM7170 Datasheet PDF : 14 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
ICM7170
ICM7170
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
ADDRESS Valid to DATA Valid, tACC
READ Cycle Time, tCYC
Read High Time, tRH
RD High to Bus Three-State, tRH
ADDRESS to READ Set Up Time, tAS
ADDRESS HOLD Time After READ, tAR
WRITE CYCLE TIMING
-
250
ns
-
300
ns
400
-
ns
150
-
ns
-
25
ns
50
-
ns
0
-
ns
ADDRESS Valid to WRITE Strobe, tAD
ADDRESS Hold Time for WRITE, tWA
WRITE Pulse Width, Low, tWL
WRITE High Time, tWH
DATA IN to WRITE Set Up Time, tDW
DATA IN Hold Time After WRITE, tWD
WRITE Cycle Time, tCYC
MULTIPLEXED MODE TIMING
50
-
ns
0
-
ns
100
-
ns
300
-
ns
100
-
ns
30
-
ns
400
-
ns
ALE Pulse Width, High, tLL
ADDRESS to ALE Set Up Time, tAL
ADDRESS Hold Time After ALE, tLA
50
-
ns
30
-
ns
30
-
ns
Timing Diagrams
A0 - A4, CS
RD
ADDRESS VALID, CS LOW
tAS
tAR
tCYC
tRD
D0 - D7
tACC
OUTPUT DATA VALID
tRX
FIGURE 1. READ CYCLE TIMING FOR NON-MULTIPLEXED BUS (ALE = VIH, WR = VIH)
Specification Number ICM7170_IM (IL) REV -
4
Page 5 of 14
 

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