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WS27C256L-15TMB PDF预览

WS27C256L-15TMB

更新时间: 2024-01-16 14:56:29
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS 军事可编程只读存储器电动程控只读存储器
页数 文件大小 规格书
5页 51K
描述
Military 32K x 8 CMOS EPROM

WS27C256L-15TMB 数据手册

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WS27C256L  
Military 32K x 8 CMOS EPROM  
KEY FEATURES  
High Performance CMOS  
Ceramic Leadless Chip Carrier (CLLCC)  
— 120 ns Access Time  
EPI Processing  
— Latch-Up Immunity to 200 mA  
Fast Programming  
DESC SMD No. 5962-86063  
300 Mil DIP or Standard 600 Mil DIP  
— ESD Protection Exceeds 2000 Volts  
JEDEC Standard Pin Configuration  
GENERAL DESCRIPTION  
The WS27C256L is a performance oriented 256K UV Erasable Electrically Programmable Read Only Memory  
organized as 32K words x 8 bits/word. It is manufactured using an advanced CMOS technology which enables it to  
operate at speeds up to 120 nsecs. The memory was designed utilizing WSI's patented self-aligned split gate  
EPROM cell, resulting in a low power device with a very cost effective die size.  
The WS27C256L 256K EPROM provides 32K of 8 bit wide code store capacity for DSP, microprocessor, and  
microcontroller-based systems. Its 120 nsec access time over the full Military temperature range provides the  
potential of no-wait state operation. And where this parameter is important, the WS27C256L provides the user with  
a very fast 35 nsec T  
output enable time.  
OE  
The WS27C256L is offered in a 28 pin 300 mil skinny CERDIP or the standard 600 mil CERDIP, and also in a  
32 pad Ceramic Leadless Chip Carrier (CLLCC) for surface mount applications. All packages incorporate the  
standard JEDEC EPROM pinout.  
PIN CONFIGURATION  
TOP VIEW  
Chip Carrier  
CERDIP  
1
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
V
V
CC  
PP  
4
3
2
30  
32 31  
1
2
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
5
29  
6
5
4
3
2
1
0
12  
14  
13  
8
8
3
A
6
28  
27  
26  
25  
24  
23  
22  
21  
7
6
5
4
3
2
1
0
0
1
2
9
4
A
7
11  
5
A
A
A
A
A
A
O
O
O
NC  
OE  
A
9
8
6
11  
9
7
OE  
A
10  
11  
12  
13  
10  
8
10  
CE/PGM  
9
CE/PGM  
NC  
O
7
O
10  
11  
12  
13  
14  
O
7
O
0
6
O
6
14 15 16  
18  
20  
17  
19  
O
O
5
O
4
O
O
NC O  
O
4 5  
1
2
3
O
GND  
3
PRODUCT SELECTION GUIDE  
PARAMETER  
WS27C256L-12  
120 ns  
WS27C256L-15  
150 ns  
WS27C256L-20  
Address Access Time (Max)  
Chip Select Time (Max)  
Output Enable Time (Max)  
200 ns  
200 ns  
40 ns  
120 ns  
150 ns  
35 ns  
40 ns  
4-19  
Return to Main Menu  

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