Low Power CMOS SRAM
512K X 8 Bits
UC62LS4008
-20/-25
ꢀFeatures:
• Vcc operation voltage : 3.0V ~ 3.6V
• Low power consumption :
20mA (Max.) operating current
2uA (Typ.) CMOS standby current
• High Speed Access time :
ꢀ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.
25ns (Max.) at Vcc = 3.0V
• Automatic power down when chip is deselected
• Three state outputs and TTL compatible
• Data retention supply voltage as low as 1.2V
• Easy expansion with CE\ and OE\ options
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
Speed
(ns)
Vcc=3.0V(Max.)
Power Consumption
Package
Operating
Tempature
Product Family
Vcc Range
STANDBY
Operating
Type
Vcc=3.3V(Typ.)
Vcc=3.6V(Max.)
UC62LS4008HC
UC62LS4008FC
UC62LS4008GC
UC62LS4008AC
UC62LS4008HI
UC62LS4008FI
UC62LS4008GI
UC62LS4008AI
TSOP-32
SOP-32
STSOP-32
DICE
0℃~ 70℃
3.0V ~ 3.6V
20/25
2uA
2uA
20mA
20mA
TSOP-32
SOP-32
STSOP-32
DICE
-40℃~ 85℃
3.0V ~ 3.6V
20/25
ꢀPIN CONFIGURATIONS
ꢀBLOCK DIAGRAM
A17
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
VCC
A15
A18
WE
A13
A8
A9
A11
OE
ROW
Address
MEMORY ARRAY
512K X 8 Bits
COL
Address
COLUMN DECODER
CS62LS4008FI 24
CS62LS4008FC
23
A10
CE
SENSE AMPLIFIER
&
WRITE DRIVER
22
21
20
19
18
17
CE
WE
OE
DQ7
DQ6
DQ5
DQ4
DQ3
CE
X8
WE
I/O BUFFER
OE
A11
A9
A8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
OE
A10
CE
A13
WE
A18
A15
VCC
A17
A16
A14
A12
A7
DQ7
DQ6
DQ5
DQ4
DQ3
GND
DQ2
DQ1
DQ0
A0
CS62LS4008HI
CS62LS4008HC
CS62LS4008GI
CS62LS4008GC
A6
A5
A4
A1
A2
A3
U-Chip Technology Corp. LTD. .
Preliminary Rev.1.0
Reserves the right to modify document contents without notice.
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