P4C1024L
AC CHARACTERISTICS - WRITE CYCLE
(Over Recommended Operating Temperature & Supply Voltage)
-55
-70
Symbol
Parameter
Unit
Min
Max
Min
Max
55
70
ns
ns
tWC
tCW
tAW
tAS
tWP
tAH
Write Cycle Time
Chip Enable Time
to End of Write
50
50
60
60
Address Valid to
End of Write
ns
Address Set-up
Time
0
40
0
0
50
0
ns
ns
ns
Write Pulse Width
Address Hold
Time
Data Valid to End
of Write
tDW
25
0
30
0
ns
ns
tDH
tWZ
Data Hold Time
Write Enable to
Output in High Z
25
30
ns
ns
Output Active from
End of Write
tOW
5
5
WRITE CYCLE NO. 1 (WE CONTROLLED)(6)
Notes:
6. CE1 and WE are LOW and CE2 is HIGH for WRITE cycle.
7. OE is LOW for this WRITE cycle to show twz and tow.
8. If CE1 goes HIGH or CE2 goes LOW 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 # SRAM125 REV C
Page 5 of 10
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