P3C1256-12TI 데이터 시트보기 (PDF) - Semiconductor Corporation
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P3C1256-12TI Datasheet PDF : 10 Pages
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P3C1256
AC CHARACTERISTICS—WRITE CYCLE
(Over Recommended Operating Temperature & Supply Voltage)
Symbol
Parameter
-12
Min Max
-15
Min Max
-20
Min Max
-25
Min Max
Unit
tWC
Write Cycle Time
12
15
20
25
ns
tCW
Chip Enable Time to
10
12
15
18
ns
End of Write
tAW
Address Valid to
10
12
End of Write
15
18
ns
tAS
Address Set-up
Time
0
0
0
0
ns
tWP
Write Pulse Width
9
11
15
18
ns
tAH
Address Hold Time
0
0
0
0
ns
tDW
Data Valid to End of
Write
8
10
12
15
ns
tDH
Data Hold Time
tWZ
Write Enable to
Output in High Z
0
0
0
0
ns
7
8
10
11
ns
tOW
Output Active from
End of Write
3
3
3
3
ns
TIMING WAVEFORM OF WRITE CYCLE NO. 1 (WE CONTROLLED)(10,11)
Notes:
10. CE and WE must be LOW for WRITE cycle.
11. OE is LOW for this WRITE cycle to show tWZ and tOW.
12. If CE goes HIGH simultaneously with WE HIGH, the output remains
in a high impedance state
13. Write Cycle Time is measured from the last valid address to the first
transitioning address.
Document # SRAM122 REV B
Page 5 of 10
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