PRELIMINARY
KM62256C Family CMOS SRAM
32Kx8 bit Low Power CMOS Static RAM
GENERAL DESCRIPTIONFEATURES
¡Ü
Process Technology : 0.7
¡Ü
Organization : 32Kx8
¡Ü
Power Supply Voltage : Single 5V
¡Ü
Low Data Retention Voltage : 2V(Min)
¡Ü
Three state output and TTL Compatible
¡Ü
Package Type : JEDEC Standard
§-
CMOS
¡¾
10%
28-DIP, 28-SOP, 28-TSOP I -Forward/Reverse
PRODUCT FAMILY
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.
Product
Family
KM62256CL
Commercial (0~70¡É) 45*/55/70ns
KM62256CL-L
KM62256CLE
Extended (-25~85¡É) 70/100ns
KM62256CLE-L
KM62256CLI
Industrial (-40~85¡É) 70/100ns
KM62256CLI-L
* The parameter is measured with 30pF test load.
PIN DESCRIPTION
OE
A11
A9
WE
VCC
WE
A8
A13
A14
A12
A7
A6
A5
A4
A3
A3
A4
A5
A6
A7
A12
A14
VCC
A13
A8
A9
A11
OE
14
1
2
12
3
7
4
6
5
5
6
4
28-DIP
7
3
28-SOP
8
2
9
1
10
0
11
1
12
2
13
3
14
SS
VCC
28
WE
27
26
A13
A8
25
24
A9
23
A11
22
OE
21
A10
20
CS
19
I/O8
18
I/O7
17
I/O6
16
I/O5
15
I/O4
Operating
Temperature.
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-TSOP
Type I - Forward
28-TSOP
Type I - Reverse
Speed
(ns)
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
Power Dissipation
PKG Type
Standby
(ISB1, Max)
28-DIP, 28-SOP
28-TSOP I R/F
28-SOP
28-TSOP I R/F
28-SOP
28-TSOP I R/F
100
20
100
50
100
50
§Ë
§Ë
§Ë
§Ë
§Ë
§Ë
FUNCTIONAL BLOCK DIAGRAM
A0~A2, A9~11
X-Decoder
A3~A8,
A12~14
I/O1~8
Y-Decoder
Cell
Array
I/O Buffer
NameName Function
A0~A14 Address Inputs
WE Write Enable Input
CS Chip Select Input
OE Output Enable Input
I/O1~I/O8 Data Inputs/Outputs
Vcc Power(5V)
Vss Ground
Operating
(Icc2)
70mA
Control Logic
CS
WE,OE
Revision 3.0
April 1996
PRELIMINARY
Package Type : G=SOP, P=DIP, TG=TSOP Forward, RG=TSOP Reverse
KM62256C Family CMOS SRAM
PRODUCT LIST & ORDERING INFORMATION
PRODUCT LIST
Commercial Temp Product
(0~70¡É)
Extended Temp Products
(-25~85¡É)
Industrial Temp Products
(-40~85¡É)
Part Name Function Part Name Function Part Name Function
KM62256CLP-4
KM62256CLP-4L
KM62256CLP-5
KM62256CLP-5L
KM62256CLP-7
KM62256CLP-7L
KM62256CLG-4
KM62256CLG-4L
KM62256CLG-5
KM62256CLG-5L
KM62256CLG-7
KM62256CLG-7L
KM62256CLTG-4
KM62256CLTG-4L
KM62256CLTG-5
KM62256CLTG-5L
KM62256CLTG-7
KM62256CLTG-7L
KM62256CLRG-4
KM62256CLRG-4L
KM62256CLRG-5
KM62256CLRG-5L
KM62256CLRG-7
KM62256CLRG-7L
28-DIP, 45ns, L-pwr
28-DIP, 45ns, LL-pwr
28-DIP, 55ns, L-pwr
28-DIP, 55ns, LL-pwr
28-DIP, 70ns, L-pwr
28-DIP, 70ns, LL-pwr
28-SOP, 45ns, L-pwr
28-SOP, 45ns, LL-pwr
28-SOP, 50ns, L-pwr
28-SOP, 50ns, LL-pwr
28-SOP, 70ns, L-pwr
28-SOP, 70ns, LL-pwr
28-TSOP F, 45ns, L-pwr
28-TSOP F, 45ns, LL-pwr
28-TSOP F, 55ns, L-pwr
28-TSOP F, 55ns, LL-pwr
28-TSOP F, 70ns, L-pwr
28-TSOP F, 70ns, LL-pwr
28-TSOP R, 45ns, L-pwr
28-TSOP R, 45ns, LL-pwr
28-TSOP R, 55ns, L-pwr
28-TSOP R, 55ns, LL-pwr
28-TSOP R, 70ns, L-pwr
28-TSOP R, 70ns, LL-pwr
KM62256CLGE-7
KM62256CLGE-7L
KM62256CLGE-10
KM62256CLGE-10L
KM62256CLTGE-7
KM62256CLTGE-7L
KM62256CLTGE-10
KM62256CLTGE-10L
KM62256CLRGE-7
KM62256CLRGE-7L
KM62256CLRGE-10
KM62256CLRGE-10L
28-SOP, 70ns, L-pwr
28-SOP, 70ns, LL-pwr
28-SOP, 100ns, L-pwr
28-SOP, 100ns, LL-pwr
28-TSOP F, 70ns, L-pwr
28-TSOP F, 70ns, LL-pwr
28-TSOP F, 100ns, L-pwr
28-TSOP F, 100ns, LL-pwr
28-TSOP R, 70ns, L-pwr
28-TSOP R, 70ns, LL-pwr
28-TSOP R, 100ns, L-pwr
28-TSOP R, 100ns, LL-pwr
KM62256CLGI-7
KM62256CLGI-7L
KM62256CLGI-10
KM62256CLGI-10L
KM62256CLTGI-7
KM62256CLTGI-7L
KM62256CLTGI-10
KM62256CLTGI-10L
KM62256CLRGI-7
KM62256CLRGI-7L
KM62256CLRGI-10
KM62256CLRGI-10L
28-SOP, 70ns, L-pwr
28-SOP, 70ns, LL-pwr
28-SOP, 100ns, L-pwr
28-SOP, 100ns, LL-pwr
28-TSOP F, 70ns, L-pwr
28-TSOP F, 70ns, LL-pwr
28-TSOP F, 100ns, L-pwr
28-TSOP F, 100ns, LL-pwr
28-TSOP R, 70ns, L-pwr
28-TSOP R, 70ns, LL-pwr
28-TSOP R, 100ns, L-pwr
28-TSOP R, 100ns, LL-pwr
ORDERING INFORMATION
KM6 2 X 256 C X X X - XX X
L-Low Low Power, Blank-Low Power or High Power
Access Time : 4=45ns, 5=55ns, 7=70ns, 10=100ns
Operating temperature : Blank=Commercial, I=Industrial, E=Extended
L-Low Power or Low Low Power, Blank-High Power
Die Version : C=4th generation
Density : 256=256K bit
Blank=5V, V=3.0~3.6V, U=2.7~3.3V
Organization : 2=x8
SEC Standard SRAM
Revision 3.0
April 1996
PRELIMINARY
KM62256C Family CMOS SRAM
ABSOLUTE MAXIMUM RATINGS*
Item Symbol Ratings Unit Remark
Voltage on any pin relative to Vss VIN,VOUT -0.5 to VCC+0.5 V Voltage on Vcc supply relative to Vss VCC -0.5 to 7.0 V Power Dissipation PD 1.0 W Storage temperature TSTG -65 to 150
TA 0 to 70
Operating Temperature
Soldering temperature and time TSOLDER 260¡É, 10sec (Lead Only) - -
* Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of
the device at these or any other conditions above those indicated in the operating section of this specification is not implied. Exposure to absolute maximum rating conditions
for extended periods may affect reliability.
-25 to 85
-40 to 85
¡É
¡É
¡É
¡É
KM62256CL/L-L
KM62256CLE/LE-L
KM62256CLI/LI-L
RECOMMENDED DC OPERATING CONDITIONS*
Item Symbol Min Typ** Max Unit
Supply voltage Vcc 4.5 5.0 5.5 V
Ground Vss 0 0 0 V
Input high voltage VIH 2.2 - Vcc+0.5V V
Input low voltage VIL -0.5*** - 0.8 V
* 1) Commercial Product : TA=0 to 70¡É, unless otherwise specified
2) Extended Product : TA=-25 to 85¡É, unless otherwise specified
3) Industrial Product : TA=-40 to 85¡É, unless otherwise specified
¡É
** TA=25
*** VIL(min)=-3.0V for ¡Â 50ns pulse width
CAPACITANCE* (f=1MHz, TA=25
Item Symbol Test Condition Min Max Unit
¡É
)
Input capacitance CIN VIN=0V - 6 pF
Input/Output capacitance CIO VIO=0V - 8 pF
* Capacitance is sampled not 100% tested
Revision 3.0
April 1996