Low Power CMOS SRAM
512K X 8 Bits
Features:
鈥?Vcc operation voltage : 3.0V ~ 3.6V
鈥?Low power consumption :
20mA (Max.) operating current
2uA (Typ.) CMOS standby current
鈥?High Speed Access time :
25ns (Max.) at Vcc = 3.0V
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
UC62LS4008
-20/-25
Description
The UC62LV2008 is a high performance, very low power
CMOS Static Random Access Memory organized as 524,288
words by 8 bits and operates from 3.0V 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 2uA and maximum access
time of 25ns in 3.0V operation.
Easy memory expansion is provided enable (CE\), and
active LOW output enable (OE\) and three-state output
drivers.
The UC62LS4008 has an automatic power down feature,
reducing the power consumption significantly when chip is
deselected.
The UC62LS4008 is available in the JEDEC standard 32
pin 450mil Plastic SOP, 8mmx20.0mm TSOP (type I),
and 8mmx13.4mm STSOP.
PRODUCT FAMILY
Product Family
UC62LS4008HC
UC62LS4008FC
UC62LS4008GC
UC62LS4008AC
UC62LS4008HI
UC62LS4008FI
UC62LS4008GI
UC62LS4008AI
Operating
Tempature
Vcc Range
Speed
(ns)
Vcc=3.0V(Max.)
Power Consumption
STANDBY
Operating
Vcc=3.3V(Typ.)
2uA
Vcc=3.6V(Max.)
20mA
Package
Type
TSOP-32
SOP-32
STSOP-32
DICE
TSOP-32
SOP-32
STSOP-32
DICE
0鈩?~ 70鈩?/div>
3.0V ~ 3.6V
20/25
-40鈩?~ 85鈩?/div>
3.0V ~ 3.6V
20/25
2uA
20mA
PIN CONFIGURATIONS
A17
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
GND
32
1
31
2
30
3
29
4
28
5
27
6
26
7
25
8
9 CS62LS4008FI 24
10 CS62LS4008FC 23
22
11
21
12
20
13
19
14
15
18
16
17
VCC
A15
A18
WE
A13
A8
A9
A11
OE
A10
CE
DQ7
DQ6
DQ5
DQ4
DQ3
BLOCK DIAGRAM
ROW
DECODER
ROW
Address
ADDRESS INPUT
BUFFER
CE
WE
OE
A0 - A18
MEMORY ARRAY
512K X 8 Bits
COL
Address
COLUMN DECODER
SENSE AMPLIFIER
&
WRITE DRIVER
X8
I/O BUFFER
CONTROL
INPUT
BUFFER
CONTROL
BLOCK
CE
WE
OE
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
A11
A9
A8
A13
WE
A18
A15
VCC
A17
A16
A14
A12
A7
A6
A5
A4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CS62LS4008HI
CS62LS4008HC
CS62LS4008GI
CS62LS4008GC
OE
A10
CE
DQ7
DQ6
DQ5
DQ4
DQ3
GND
DQ2
DQ1
DQ0
A0
A1
A2
A3
U-Chip Technology Corp. LTD.
.
Preliminary
Rev.1.0
PAGE
1
Reserves the right to modify document contents without notice.
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