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W24L257AQ-20 Datasheet

  • W24L257AQ-20

  • 32K X 8 High Speed CMOS Static RAM

  • 9頁

  • WINBOND

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W24L257A
32K
脳
8 HIGH-SPEED CMOS STATIC RAM
GENERAL DESCRIPTION
The W24L257A is a high-speed, low-power CMOS static RAM organized as 32768
脳
8 bits that
operates on a single 3.3-volt power supply. This device is manufactured using Winbond's high
performance CMOS technology.
FEATURES
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
High-speed access time: 12/15/20 nS (max.)
Low-power consumption:
鈭?/div>
Active: 200 mW (typ.)
Single
+3.3V
power supply
Fully static operation
鈥?/div>
鈥?/div>
鈥?/div>
All inputs and outputs directly TTL compatible
Three-state outputs
Available packages: 28-pin 300 mil SOJ,
skinny DIP and standard type one TSOP
(8 mm
脳
13.4 mm)
PIN CONFIGURATION
BLOCK DIAGRAM
V
DD
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O1
I/O2
I/O3
V
SS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28-DIP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
DD
WE
A13
A8
A9
A11
OE
V
SS
A0
.
.
A14
DECODER
CORE
ARRAY
ARRAY
CS
A10
CS
I/O8
I/O7
I/O6
I/O5
I/O4
OE
WE
CONTROL
DATA I/O
I/O1
.
.
I/O8
PIN DESCRIPTION
SYMBOL
DESCRIPTION
Address Inputs
Data Inputs/Outputs
Chip Select Input
Write Enable Input
Output Enable Input
Power Supply
Ground
A0鈭扐14
I/O1鈭捍/O8
CS
WE
OE
V
DD
V
SS
OE
A11
A9
A8
A13
WE
V
DD
A14
A12
A7
A6
A5
A4
A3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28-pin
TSOP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
A10
CS
I/O8
I/O7
I/O6
I/O5
I/O4
V
SS
I/O3
I/O2
I/O1
A0
A1
A2
-1-
Publication Release Date: December 1996
Revision A5

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