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WS57C45-35TMB PDF预览

WS57C45-35TMB

更新时间: 2024-09-08 22:40:03
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS 存储内存集成电路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
9页 80K
描述
HIGH-SPEED 2K x 8 REGISTERED CMOS PROM/RPROM

WS57C45-35TMB 技术参数

生命周期:Obsolete零件包装代码:DIP
包装说明:WDIP,针数:24
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.32.00.61风险等级:5.41
Is Samacsys:N最长访问时间:15 ns
JESD-30 代码:R-GDIP-T24长度:32.005 mm
内存密度:16384 bit内存集成电路类型:UVPROM
内存宽度:8功能数量:1
端子数量:24字数:2048 words
字数代码:2000工作模式:SYNCHRONOUS
最高工作温度:125 °C最低工作温度:-55 °C
组织:2KX8封装主体材料:CERAMIC, GLASS-SEALED
封装代码:WDIP封装形状:RECTANGULAR
封装形式:IN-LINE, WINDOW并行/串行:PARALLEL
认证状态:Not Qualified筛选级别:MIL-STD-883
座面最大高度:5.08 mm最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):4.5 V标称供电电压 (Vsup):5 V
表面贴装:NO技术:CMOS
温度等级:MILITARY端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:DUAL
宽度:7.62 mmBase Number Matches:1

WS57C45-35TMB 数据手册

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WS57C45  
HIGH-SPEED 2K x 8 REGISTERED CMOS PROM/RPROM  
KEY FEATURES  
Ultra-Fast Access Time  
— 25 ns Setup  
— 12 ns Clock to Output  
DESC SMD Nos. 5962-88735/5962-87529  
Pin Compatible with AM27S45 and  
CY7C245  
Low Power Consumption  
Fast Programming  
Immune to Latch-UP  
— Up to 200 mA  
Programmable Synchronous or  
Asynchronous Output Enable  
ESD Protection Exceeds 2000 V  
Programmable Asynchronous Initialize  
Register  
GENERAL DESCRIPTION  
The WS57C45 is an extremely High Performance 16K UV Erasable Registered CMOS RPROM. It is a direct  
drop-in replacement for such devices as the AM27S45 and CY7C245.  
To meet the requirements of systems which execute and fetch instructions simultaneously, an 8-bit parallel data  
register has been provided at the output which allows RPROM data to be stored while other data is being  
addressed.  
An asynchronous initialization feature has been provided which enables a user programmable 2049th word to be  
placed on the outputs independent of the system clock. This feature can be used to force an initialize word or  
provide a preset or clear function.  
A further advantage of the WS57C45 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 WS57C45 RPROM in a windowed package is 100%  
tested with worst case test patterns both before and after assembly.  
PIN CONFIGURATION  
TOP VIEW  
Chip Carrier  
CERDIP/Plastic DIP/  
Flatpack  
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  
1
3
A
A
A
A
A
5
6
7
8
9
9
A
4
3
2
1
0
10  
INIT/V  
4
10  
24  
23  
22  
21  
20  
19  
PP  
OE/OE  
5
INIT/V  
PP  
OE/OE  
S
6
S
CP/PGM  
NC  
7
CP/PGM  
8
O
O
O
O
O
NC  
7
6
5
4
3
10  
11  
12 13 14  
O
7
9
O
0
O
6
10  
11  
12  
16  
18  
15  
17  
O
GND  
O
O
NC O  
O
4 5  
1
2
3
GND  
PRODUCT SELECTION GUIDE  
PARAMETER  
WS57C45-25  
WS57C45-35  
WS57C45-45  
Set Up Time (Max)  
25 ns  
12 ns  
35 ns  
15 ns  
45 ns  
25 ns  
Clock to Output (Max)  
2-21  
Return to Main Menu  

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