KM62256C Family
32Kx8 bit Low Power CMOS Static RAM
FEATURES
•
Process Technology : 0.7µm CMOS
•
Organization : 32Kx8
•
Power Supply Voltage : Single 5V±10%
•
Low Data Retention Voltage : 2V(Min)
•
Three state output and TTL Compatible
•
Package Type : 28-DIP-600, 28-SOP-450,
28-TSOP1 -0813.4F/R
CMOS SRAM
GENERAL DESCRIPTION
The KM62256C family is fabricated by SAMSUNG′s advanced
CMOS process technology. The family supports various operat-
ing 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.
PRODUCT FAMILY
Power Dissipation
Product Family
KM62256CL
KM62256CL-L
KM62256CLE
KM62256CLE-L
KM62256CLI
KM62256CLI-L
Industrial (-40~85°C)
70ns
Extended (-25~85°C)
70ns
Operating Temperature.
Speed(ns)
PKG Type
Standby
(I
SB1
, Max)
100µA
20µA
100µA
50µA
100µA
50µA
70mA
Operating
(Icc
2
)
Commercial (0~70°C)
55/70ns
28-DIP, 28-SOP
28-TSOP I R/F
28-SOP
28-TSOP I R/F
28-SOP
28-TSOP I R/F
PIN DESCRIPTION
OE
A11
A9
A8
A13
WE
VCC
A14
A12
A7
A6
A5
A4
A3
A3
A4
A5
A6
A7
A12
A14
VCC
WE
A13
A8
A9
A11
OE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
14
13
12
11
10
9
8
7
6
5
4
3
2
1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
15
16
17
18
19
20
21
22
23
24
25
26
27
28
A10
CS
I/O8
I/O7
I/O6
I/O5
I/O4
VSS
I/O3
I/O2
I/O1
A0
A1
A2
A2
A1
A0
I/O1
I/O2
I/O3
VSS
I/O4
I/O5
I/O6
I/O7
I/O8
CS
A10
FUNCTIONAL BLOCK DIAGRAM
Clk gen.
Precharge circuit.
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O1
I/O2
I/O3
VSS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
VCC
WE
A13
A8
A9
A11
OE
A10
CS
I/O8
I/O7
I/O6
I/O5
I/O4
28-TSOP
Type I - Forward
A3
A4
A5
A6
A7
A8
A12
A13
A14
Row
select
28-DIP
22
28-SOP
21
20
19
18
17
16
15
Memory array
512 rows
64×8 columns
28-TSOP
Type I - Reverse
I/O
1
I/O
8
Data
cont
I/O Circuit
Column select
Data
cont
NameName
A
0
~A
14
WE
CS
OE
I/O
1
~I/O
8
Vcc
Vss
Function
Address Inputs
Write Enable Input
Chip Select Input
Output Enable Input
Data Inputs/Outputs
Power(5V)
Ground
CS
WE
OE
A0
A1
A2
A9
A10
A11
Control
Logic
SAMSUNG ELECTRONICS CO., LTD.
reserves the right to change products and specifications without notice.
2
Revision 4.0
December 1997
SAMSUNG [ SAMSUNG SEMICONDUCTOR ]
