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KM68V257C 데이터시트(PDF) 4 Page - Samsung semiconductor

부품명 KM68V257C
상세설명  32Kx8 Bit High Speed Static RAM(3.3V Operating), Evolutionary Pin out.
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제조업체  SAMSUNG [Samsung semiconductor]
홈페이지  http://www.samsung.com/Products/Semiconductor
Logo SAMSUNG - Samsung semiconductor

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KM68V257C
CMOS SRAM
PRELIMINARY
Rev 3.0
- 4 -
February 1998
TEST CONDITIONS
Parameter
Value
Input Pulse Levels
0V to 3V
Input Rise and Fall Times
3ns
Input and Output timing Reference Levels
1.5V
Output Loads
See below
AC CHARACTERISTICS(TA=0 to 70
°C, VCC=3.3±0.3V, unless otherwise noted.)
Output Loads(B)
DOUT
5pF*
319
353
for tHZ, tLZ, tWHZ, tOW, tOLZ & tOHZ
+3.3V
READ CYCLE
Parameter
Symbol
KM68V257C-15
KM68V257C-17
Unit
Min
Max
Min
Max
Read Cycle Time
tRC
15
-
17
-
ns
Address Access Time
tAA
-
15
-
17
ns
Chip Select to Output
tCO
-
15
-
17
ns
Output Enable to Valid Output
tOE
-
7
-
8
ns
Chip Enable to Low-Z Output
tLZ
3
-
3
-
ns
Output Enable to Low-Z Output
tOLZ
0
-
0
-
ns
Chip Disable to High-Z Output
tHZ
0
7
0
8
ns
Output Disable to High-Z Output
tOHZ
0
7
0
8
ns
Output Hold from Address Change
tOH
3
-
3
-
ns
Chip Selection to Power Up Time
tPU
0
-
0
-
ns
Chip Selection to Power DownTime
tPD
-
15
-
17
ns
* Including Scope and Jig Capacitance
Output Loads(A)
DOUT
RL = 50
ZO = 50
VL = 1.5V
30pF*
* Capacitive Load consists of all components of the
test environment.


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