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KM641003A Datasheet(PDF) 5 Page - Samsung semiconductor

Part No. KM641003A
Description  256Kx4 High Speed Static RAM(5V Operating), Revolutionary Pin out Operated at Commercial and Industrial Temperature Range
Download  8 Pages
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Maker  SAMSUNG [Samsung semiconductor]
Homepage  http://www.samsung.com/Products/Semiconductor
Logo SAMSUNG - Samsung semiconductor

KM641003A Datasheet(HTML) 5 Page - Samsung semiconductor

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KM641003A
CMOS SRAM
PRELIMINARY
Rev 4.0
- 5 -
February 1998
Address
Data Out
Previous Valid Data
Valid Data
TIMMING DIAGRAMS
TIMING WAVEFORM OF READ CYCLE(1) (Address Controlled, CS=OE=VIL, WE=VIH)
tAA
tRC
tOH
TIMING WAVEFORM OF READ CYCLE(2) (WE=VIH)
CS
Address
OE
Data out
tAA
tOLZ
tLZ(4,5)
tOH
tOHZ
tRC
tOE
tCO
tPU
tPD
tHZ(3,4,5)
50%
50%
VCC
Current
ICC
ISB
Valid Data
WRITE CYCLE
Parameter
Symbol
KM641003A-12
KM641003A-15
KM641003A-20
Unit
Min
Max
Min
Max
Min
Max
Write Cycle Time
tWC
12
-
15
-
20
-
ns
Chip Select to End of Write
tCW
8
-
10
-
12
-
ns
Address Setup Time
tAS
0
-
0
-
0
-
ns
Address Valid to End of Write
tAW
8
-
10
-
12
-
ns
Write Pulse Width(OE High)
tWP
8
-
10
-
12
-
ns
Write Pulse Width(OE Low)
tWP1
12
-
15
-
20
-
ns
Write Recovery Time
tWR
0
-
0
-
0
-
ns
Write to Output High-Z
tWHZ
0
6
0
7
0
9
ns
Data to Write Time Overlap
tDW
6
-
7
-
9
-
ns
Data Hold from Write Time
tDH
0
-
0
-
0
-
ns
End Write to Output Low-Z
tOW
3
-
3
-
3
-
ns


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