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W24257AK-20 参数 Datasheet PDF下载

W24257AK-20图片预览
型号: W24257AK-20
PDF下载: 下载PDF文件 查看货源
内容描述: 32K ×8高速CMOS静态RAM [32K X 8 High Speed CMOS Static RAM]
分类和应用:
文件页数/大小: 11 页 / 227 K
品牌: WINBOND [ WINBOND ]
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W24257A
32K
×
8 HIGH SPEED CMOS STATIC RAM
GENERAL DESCRIPTION
The W24257A is a high speed, low power CMOS static RAM organized as 32768
×
8 bits that
operates on a single 5-volt power supply. This device is manufactured using Winbond's high
performance CMOS technology.
FEATURES
High speed access time: 10/12/15/20 nS (max.)
Low power consumption:
Active: 400 mW (typ.)
Single
+5V
power supply
Fully static operation
All inputs and outputs directly TTL compatible
Three-state outputs
Available packages: 28-pin 300 mil SOJ, 330
mil SOP, skinny DIP and standard type one
TSOP (8 mm
×
13.4 mm)
PIN CONFIGURATIONS
BLOCK DIAGRAM
V
DD
V
SS
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-pin
DIP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
DD
WE
A13
A8
A9
A11
OE
A10
CS
I/O8
I/O7
I/O6
I/O5
I/O4
A0
.
.
A14
DECODER
CORE
ARRAY
CS
OE
WE
CONTROL
DATA I/O
I/O1
.
.
I/O8
PIN DESCRIPTION
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
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
28-pin
TSOP
SYMBOL
A0−A14
I/O1−I/O8
CS
WE
OE
V
DD
V
SS
DESCRIPTION
Address Inputs
Data Inputs/Outputs
Chip Select Input
Write Enable Input
Output Enable Input
Power Supply
Ground
-1-
Publication Release Date: May 1997
Revision A14