UT62W256C 查看數據表（PDF） - Utron Technology Inc
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UT62W256C Datasheet PDF : 13 Pages
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Rev. 1.1
UTRON
FEATURES
Fast access time : 35/70ns
Low power consumption:
Operation : 40/20 mA (max.) (VCC≦3.6V)
50/40 mA (max.) (VCC≦5.5V)
Standby : -L / -LL version
1 / 0.5uA (typical) VCC=2.7~3.6V
2 / 1uA (typical) VCC=4.5~5.5V
Wide Range power supply: 2.7V~5.5V
Operating temperature :
Commercial temperature : 0℃~70℃
Extended temperature : -20℃~85℃
All inputs and outputs are TTL compatible
Fully static operation
Three state outputs
Data retention voltage : 1.5V (min.)
Package : 28-pin 600 mil PDIP
28-pin 330 mil SOP
28-pin 8x13.4mm STSOP
FUNCTIONAL BLOCK DIAGRAM
A0-A14
Vcc
Vss
DECODER
32K × 8
MEMORY
ARRAY
I/O1-I/O8
I/O DATA
CIRCUIT
COLUMN I/O
CE
CONTROL
WE
CIRCUIT
OE
PIN DESCRIPTION
SYMBOL
A0 - A14
I/O1 - I/O8
CE
WE
OE
VCC
VSS
DESCRIPTION
Address Inputs
Data Inputs/Outputs
Chip Enable Input
Write Enable Input
Output Enable Input
Power Supply
Ground
UT62W256C
32K X 8 BIT LOW POWER CMOS SRAM
GENERAL DESCRIPTION
The UT62W256C is a 262,144-bit low power CMOS
static random access memory organized as 32,768
words by 8 bits. It is fabricated using high
performance, high reliability CMOS technology. its
standby current is stable within the range of operating
temperature.
The UT62W256C is designed for low power
application. It is particularly well suited for battery
back-up nonvolatile memory application.
The UT62W256C operates with wide range power
supply and all inputs and outputs are fully TTL
compatible
PIN CONFIGURATION
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O1
I/O2
I/O3
Vss
1
28
2
27
3
26
4
25
5
24
6
23
7
22
8
21
9
20
10
19
11
18
12
17
13
16
14
15
PDIP/SOP
Vcc
WE
A13
A8
A9
A11
OE
A10
CE
I/O8
I/O7
I/O6
I/O5
I/O4
OE
1
28
A11
2
27
A9
3
26
A8
4
25
A13
5
24
WE
6
23
Vcc
7
22
A14
8 UT62W256C 21
A12
9
20
A7
10
19
A6
11
18
A5
12
17
A4
13
16
A3
14
15
A10
CE
I/O8
I/O7
I/O6
I/O5
I/O4
Vss
I/O3
I/O2
I/O1
A0
A1
A2
STSOP
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
2
P80069
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