PRELIMINARY
KM62256C Family
CMOS SRAM
32Kx8 bit Low Power CMOS Static RAM
FEATURES
GENERAL DESCRIPTION
The KM62256C family is fabricated by SAMSUNG's advanced
CMOS process technology. The family can support various
operating temperature ranges and has various package types
for user flexibility of system design. The family also support low
data retention voltage for battery back-up operation with low
data retention current.
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Process Technology : 0.7
Organization : 32Kx8
CMOS
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Power Supply Voltage : Single 5V
10%
Low Data Retention Voltage : 2V(Min)
Three state output and TTL Compatible
Package Type : JEDEC Standard
28-DIP, 28-SOP, 28-TSOP I -Forward/Reverse
PRODUCT FAMILY
Power Dissipation
PKG Type
Product
Family
Operating
Temperature.
Speed
(ns)
Standby
Operating
(Icc2)
(ISB1, Max)
KM62256CL
28-DIP, 28-SOP
28-TSOP I R/F
§Ë
§Ë
§Ë
§Ë
§Ë
§Ë
100
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Commercial (0~70
)
45*/55/70ns
70/100ns
70/100ns
KM62256CL-L
KM62256CLE
KM62256CLE-L
KM62256CLI
KM62256CLI-L
20
28-SOP
28-TSOP I R/F
100
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)
Extended (-25~85
70mA
50
28-SOP
28-TSOP I R/F
100
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)
Industrial (-40~85
50
* The parameter is measured with 30pF test load.
PIN DESCRIPTION
FUNCTIONAL BLOCK DIAGRAM
A0~A2, A9~11
Y-Decoder
1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
A10
OE
2
CS
I/O8
I/O7
I/O6
I/O5
I/O4
VSS
I/O3
I/O2
I/O1
A0
A11
A9
3
4
A8
A14
A12
A7
1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VCC
WE
A13
5
A13
WE
VCC
A14
A12
A7
A3~A8,
6
2
28-TSOP
Type I - Forward
A12~14
7
Cell
Array
8
3
9
4
A6
A8
10
11
12
13
14
A6
5
A5
A9
A5
CS
WE,OE
A1
A4
6
A11
A4
A2
A3
I/O Buffer
28-DIP
28-SOP
7
OE
A10
A3
I/O1~8
8
14
13
12
11
10
9
A3
A4
15
16
17
18
19
20
21
22
23
24
25
26
27
28
A2
A2
A1
9
CS
I/O8
I/O7
I/O6
I/O5
I/O4
A1
A5
A0
A6
I/O1
I/O2
I/O3
VSS
I/O4
I/O5
I/O6
I/O7
I/O8
CS
A10
10
11
12
13
14
A0
A7
A12
A14
VCC
WE
A13
A8
NameName
Function
O1
O2
O3
VSS
8
28-TSOP
Type I - Reverse
A0~A14
Address Inputs
Write Enable Input
Chip Select Input
Output Enable Input
Data Inputs/Outputs
Power(5V)
7
6
WE
5
4
CS
A9
3
A11
2
OE
1
OE
I/O1~I/O8
Vcc
Vss
Ground
Revision 3.0
April 1996