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WS57C43C-25T PDF预览

WS57C43C-25T

更新时间： 2024-01-30 19:06:50
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS 可编程只读存储器
页数 文件大小 规格书
7页 56K
描述
HIGH SPEED 4K x 8 CMOS PROM/RPROM

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中文翻译

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WS57C43C-25T 数据手册

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WS57C43C  
HIGH SPEED 4K x 8 CMOS PROM/RPROM  
KEY FEATURES  
• Ultra-Fast Access Time  
• Pin Compatible with 4K x 8 Bipolar PROMs  
• Immune to Latch-UP  
— Up to 200 mA  
— t  
= 25 ns  
ACC  
— t = 12 ns  
CS  
• Low Power Consumption  
• Fast Programming  
• ESD Protection Exceeds 2000 V  
• Available in 300 Mil DIP and PLDCC  
GENERAL DESCRIPTION  
The WS57C43C is a High Performance 32K UV Erasable Electrically Re-Programmable Read Only Memory  
(RPROM). It is manufactured in an advanced CMOS technology which enables it to operate at Bipolar PROM  
speeds while consuming only 25% of the power required by its Bipolar counterparts. A further advantage of the  
WS57C43C over Bipolar PROM devices is the fact that it utilizes a proven EPROM technology. This enables the  
entire memory array to be tested for switching characteristics and functionality after assembly. Unlike devices which  
cannot be erased, every WS5743C in a windowed package is 100% tested with worst case test patterns both  
before and after assembly.  
The WS57C43C is configured in the standard Bipolar PROM pinout which provides an easy upgrade path for  
systems which are currently using Bipolar PROMs, or its predecessor, the WS57C43B.  
BLOCK DIAGRAM  
PIN CONFIGURATION  
TOP VIEW  
CERDIP/Plastic DIP  
EPROM ARRAY  
32,768 BITS  
7
ROW  
DECODER  
Chip Carrier  
A5 - A11  
ROW  
ADDRESSES  
NC  
A
A
A
V
A
A
9
5
6
7
CC  
8
A
A
A
A
A
A
A
A
O
O
O
1
V
A
A
A
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
7
6
5
4
3
2
1
0
0
1
2
CC  
8
2
4
3
2
26  
25  
28 27  
5
COLUMN  
DECODER  
1
3
A
A
A
A
A
5
6
7
8
9
A
9
4
3
2
1
0
10  
A0 - A4  
4
24  
23  
22  
21  
20  
19  
10  
CS1/V  
COLUMN  
ADDRESSES  
PP  
5
CS1/V  
PP  
A
11  
6
A
11  
CS2  
NC  
7
CS2  
SENSE  
AMPLIFIERS  
8
O
7
NC  
10  
O
7
O
9
O
6
O
O
0
11  
12 13 14  
6
10  
11  
12  
16  
18  
15  
17  
O
5
CS1/VPP  
CS2  
O
4
O
GND  
3
O
O
NC O  
O
4 5  
1
2
3
GND  
8
OUTPUTS  
PRODUCT SELECTION GUIDE  
PARAMETER  
57C43C-25  
57C43C-35  
35 ns  
57C43C-45  
45 ns  
57C43C-55  
55 ns  
57C43C-70  
70 ns  
Address Access Time (Max)  
CS to Output Valid Time (Max)  
25 ns  
12 ns  
20 ns  
25 ns  
25 ns  
25 ns  
2-31  
Return to Main Menu  
1234567

中文翻译

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