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WS57C49C-

更新时间： 2024-09-08 23:43:07
品牌 Logo 应用领域
其他 - ETC 军事可编程只读存储器
页数 文件大小 规格书
2页 22K
描述
WS57C49C MILITARY HIGH SPEED 8K X 8 CMOS PROM/RPROM

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中文翻译

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WS57C49C- 数据手册

 浏览型号WS57C49C-的Datasheet PDF文件第2页 
WS57C49C  
MILITARY HIGH SPEED 8K x 8 CMOS PROM/RPROM  
KEY FEATURES  
• Ultra-Fast Access Time  
• Pin Compatible with Bipolar PROMs  
• Immune to Latch-UP  
— Up to 200 mA  
— t  
= 35 ns  
ACC  
— t = 20 ns  
CS  
• Low Power Consumption  
• Fast Programming  
• ESD Protection Exceeds 2000 V  
• Available in 300 and 600 Mil DIP, CLLCC,  
and Flatpack  
GENERAL DESCRIPTION  
The WS57C49C is a High Performance 64K 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  
WS57C49C 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 WS57C49C in a windowed package is 100% tested with worst case test patterns both  
before and after assembly.  
The WS57C49C 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 WS57C49B.  
MODE SELECTION  
PIN CONFIGURATION  
PINS  
CS1/V  
V
V
V
V
V
OUTPUTS  
TOP VIEW  
PP  
CC  
CC  
CC  
CC  
CC  
MODE  
Read  
V
D
Chip Carrier  
CERDIP/Flatpack  
IL  
OUT  
Output  
Disable  
NC  
V
High Z  
IH  
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
Program  
V
D
PP  
IN  
2
4
3
2
26  
25  
28 27  
1
3
A
A
A
A
A
5
6
7
8
9
A
9
Program  
Verify  
4
3
2
1
0
10  
V
D
4
IL  
OUT  
24  
23  
22  
21  
20  
19  
10  
CS1/V  
PP  
5
CS1/V  
PP  
A
11  
6
A
11  
A
12  
7
A
12  
NC  
8
O
7
NC  
10  
O
7
9
O
6
O
O
0
11  
O
6
10  
11  
12  
12 13 14  
16  
18  
15  
17  
O
5
O
4
GND  
O
3
O
O
NC O  
O
4 5  
1
2
GND  
3
PRODUCT SELECTION GUIDE  
PARAMETER  
WS57C49C-35  
35 ns  
WS57C49C-45  
45 ns  
WS57C49C-55  
55 ns  
WS57C49C-70  
70 ns  
Address Access Time (Max)  
CS to Output Valid Time (Max)  
20 ns  
25 ns  
25 ns  
25 ns  
4-9  
Return to Main Menu  
12

中文翻译

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