Low Power CMOS SRAM
32K X8 Bits
Features:
鈥?Vcc operation voltage : 2.0V ~ 3.6V
鈥?Low power consumption :
10mA (Max.) operating current
0.1uA (Typ.) CMOS standby current
鈥?High Speed Access time :
35ns (Max.) at Vcc = 2.7V
55ns (Max.) at Vcc = 2.7V
70ns (Max.) at Vcc = 2.0V
鈥?Automatic power down when chip is deselected
鈥?Three state outputs and TTL compatible
鈥?Data retention supply voltage as low as 1.2V
鈥?Easy expansion with CE\ and OE\ options
UC62LV0256
-35/-55/-70
Description
The UC62LV0256 is a high performance, very low power
CMOS Static Random Access Memory organized as 32,768
words by 8 bits and operates from a wide range of 2.0V to
3.6V supply voltage. Advanced CMOS technology and circuit
techniques provide both high speed and low power features
with a typical CMOS standby current of 1uA and maximum
access time of 70ns in 2.0V operation.
Easy memory expansion is provided enable (CE), and
active LOW output enable (OE) and three-state output
drivers.
The UC62LV0256 has an automatic power down feature,
reducing the power consumption significantly when chip is
deselected.
The UC62LV0256 is available in the JEDEC standard 28 pin
330mil Plastic SOP, 300mil Plastic SOJ, 600mil Plastic DIP
and 8mmx13.4mm TSOP (normal type).
PRODUCT FAMILY
Product
Family
UC62LV0256BC
UC62LV0256CC
UC62LV0256DC
UC62LV0256EC
UC62LV0256AC
UC62LV0256BI
UC62LV0256CI
UC62LV0256DI
UC62LV0256EI
UC62LV0256AI
Operating
Temperature
Vcc Range
Speed
(ns)
Vcc=2.7V
Power Consumption
STANDBY
VCC=3.6V Operating (Max)
Vcc=3.0V
35ns
55ns
70ns
Package
Type
SOP-28
TSOP-28
PDIP-28
SOJ-28
DICE
SOP-28
TSOP-28
PDIP-28
SOJ-28
DICE
0鈩?~ 70鈩?/div>
2.0V ~ 3.6V
-35/ -55/ -70
0.1uA
17mA
13mA
10mA
-25鈩?/div>
~ 85
2.0V ~ 3.6V
-35/ -55/ -70
0.1uA
17mA
13mA
10mA
PIN CONFIGURATIONS
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
GND
OE
A11
A9
A8
A13
WE
VCC
A14
A12
A7
A6
A5
A4
A3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
BLOCK DIAGRAM
VCC
WE
A13
A8
A9
A11
OE
A10
CE
DQ7
DQ6
DQ5
DQ4
DQ3
28
27
26
25
24
23
22
21
20
19
18
17
16
15
A10
CE
DQ7
DQ6
DQ5
DQ4
DQ3
GND
DQ2
DQ1
DQ0
A0
A1
A2
ROW
DECODER
1
2
3
4
5
6
7
8
9
10
11
12
13
14
UC62LV0256BI
UC62LV0256DI
UC62LV0256EI
UC62LV0256BC
UC62LV0256DC
UC62LV0256EC
28
27
26
25
24
23
22
21
20
19
18
17
16
15
ROW
Address
ADDRESS INPUT
BUFFER
CE
WE
OE
A0 - A14
MEMORY ARRAY
32K X 8 Bits
COL
Address
COLUMN DECODER
CE
WE
OE
SENSE AMPLIFIER
&
WRITE DRIVER
CONTROL
INPUT
BUFFER
CONTROL
BLOCK
X8
I/O BUFFER
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
UC62LV0256CC
UC62LV0256CI
U-Chip Technology Corp. LTD.
Reserves the right to modify document contents without notice.
Revision 2.0
PAGE 1
1
2
3
4
5
6
7
8
9
10
