Rev. 1.1
Commercial : 0鈩儈70鈩?/div>
All inputs and outputs TTL compatible
Fully static operation
Three state outputs
Data retention voltage : 2V (min.)
Package : 28-pin 600 mil PDIP
28-pin 330 mil SOP
UT6264C
8K X 8 BIT LOW POWER CMOS SRAM
The UT6264C is a 65,536-bit low power CMOS
static random access memory organized as 8,192
words by 8 bits. It is fabricated using high
performance, high reliability CMOS technology.
Easy memory expansion is provided by using two
chip enable input.(
CE
1
,CE2) ,and supports low
data retention voltage for battery back-up
operation with low data retention current.
The UT6264C operates from a single 4.5V~5.5V
power supply and all inputs and outputs are fully
TTL compatible.
PIN CONFIGURATION
NC
A12
A7
1
2
3
4
28
27
26
25
Vcc
WE
FUNCTIONAL BLOCK DIAGRAM
A0-A12
DECODER
8K
脳
8
MEMORY
ARRAY
CE2
A8
A9
A11
OE
A6
A5
A4
UT6264C
5
6
7
8
9
10
11
12
13
14
24
23
22
21
20
19
18
17
16
15
Vcc
Vss
A3
A2
A1
A10
CE1
I/O1-I/O8
I/O DATA
CIRCUIT
COLUMN I/O
A0
I/O1
I/O2
I/O3
Vss
I/O8
I/O7
I/O6
I/O5
I/O4
CE1
CE2
OE
WE
CONTROL
CIRCUIT
PDIP/SOP
PIN DESCRIPTION
SYMBOL
A0 - A12
I/O1 - I/O8
CE1 ,CE2
WE
OE
V
CC
V
SS
NC
DESCRIPTION
Address Inputs
Data Inputs/Outputs
Chip Enable Inputs
Write Enable Input
Output Enable Input
Power Supply
Ground
No connection
GENERAL DESCRIPTION
UTRON TECHNOLOGY INC.
1F, No. 11, R&D Rd. II, Science-Based Industrial Park, Hsinchu, Taiwan, R. O. C.
TEL: 886-3-5777882 FAX: 886-3-5777919
P80028
1