P4C1048L
AC CHARACTERISTICS - WRITE CYCLE
(Over Recommended Operating Temperature & Supply Voltage)
-45
-55
-70
-100
Symbol
tWC
Parameter
Unit
ns
Min Max Min
Max
Min
Max
Min Max
Write Cycle Time
45
55
70
100
Chip Enable Time
to End of Write
tCW
ns
35
40
60
60
0
75
Address Valid to
End of Write
tAW
tAS
35
0
40
0
75
0
ns
ns
ns
Address Set-up
Time
tWP
Write Pulse Width
35
40
50
60
Address Hold
Time
tAH
ns
0
0
0
0
Data Valid to End
of Write
tDW
tDH
tWZ
25
0
30
0
35
0
45
0
ns
ns
ns
Data Hold Time
Write Enable to
Output in High Z
18
20
25
35
Output Active from
End of Write
tOW
5
5
5
5
ns
WRITE CYCLE NO. 1 (WE CONTROLLED)(6,7)
Notes:
6. CE and WE are LOW for WRITE cycle.
7. OE is LOW for this WRITE cycle to show tWZ and tOW
.
8. If CE goes HIGH simultaneously with WE HIGH, the output remains in a high impedance state.
9. Write Cycle Time is measured from the last valid address to the first transitioning address.
Document # SRAM129 REV D
Page 6 of 12
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