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KM68V257C-15 Datasheet(PDF) 8 Page - Samsung semiconductor

Part # KM68V257C-15
Description  32Kx8 Bit High Speed Static RAM(3.3V Operating), Evolutionary Pin out.
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Manufacturer  SAMSUNG [Samsung semiconductor]
Direct Link  http://www.samsung.com/Products/Semiconductor
Logo SAMSUNG - Samsung semiconductor

KM68V257C-15 Datasheet(HTML) 8 Page - Samsung semiconductor

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KM68V257C
CMOS SRAM
PRELIMINARY
Rev 3.0
- 8 -
February 1998
FUNCTIONAL DESCRIPTION
* NOTE : X means Don
′t Care.
CS
WE
OE
Mode
I/O Pin
Supply Current
H
X
X*
Not Select
High-Z
ISB, ISB1
L
H
H
Output Disable
High-Z
ICC
L
H
L
Read
DOUT
ICC
L
L
X
Write
DIN
ICC
DATA RETENTION CHARACTERISTICS(TA=0 to 70
°C)
Parameter
Symbol
Test Condition
Min.
Typ.
Max.
Unit
VCC for Data Retention
VDR
CS
≥VCC - 0.2V
2.0
-
3.6
V
Data Retention Current
IDR
VCC = 3.0V, CS
≥VCC - 0.2V
-
-
0.07
mA
Data Retention Set-Up Time
tSDR
See Data Retention
Wave form(below)
0
-
-
ns
Recovery Time
tRDR
5
-
-
ms
DATA RETENTION WAVE FORM
VCC
3.0V
VIH
VDR
CS
GND
Data Retention Mode
CS
≥VCC - 0.2V
tSDR
tRDR
CS controlled


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