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AT29C020-90 PDF预览

AT29C020-90

更新时间: 2024-11-07 22:06:51
品牌 Logo 应用领域
爱特美尔 - ATMEL 闪存
页数 文件大小 规格书
11页 260K
描述
2-Megabit 256K x 8 5-volt Only CMOS Flash Memory

AT29C020-90 数据手册

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Features  
Fast Read Access Time - 90 ns  
5-Volt-Only Reprogramming  
Sector Program Operation  
Single Cycle Reprogram (Erase and Program)  
1024 Sectors (256 bytes/sector)  
Internal Address and Data Latches for 256-Bytes  
Internal Program Control and Timer  
Hardware and Software Data Protection  
Two 8 KB Boot Blocks with Lockout  
Fast Sector Program Cycle Time - 10 ms  
DATA Polling for End of Program Detection  
Low Power Dissipation  
2-Megabit  
(256K x 8)  
5-volt Only  
CMOS Flash  
Memory  
40 mA Active Current  
100 µA CMOS Standby Current  
Typical Endurance > 10,000 Cycles  
Single 5V ±10% Supply  
CMOS and TTL Compatible Inputs and Outputs  
Commercial and Industrial Temperature Ranges  
Description  
The AT29C020 is a 5-volt-only in-system Flash programmable and erasable read only  
memory (PEROM). Its 2 megabits of memory is organized as 262,144 bytes. Manu-  
factured with Atmel’s advanced nonvolatile CMOS technology, the device offers ac-  
cess times to 90 ns with power dissipation of just 220 mW over the commercial tem-  
perature range. When the device is deselected, the CMOS standby current is less  
than 100 µA. Device endurance is such that any sector can typically be written to in  
excess of 10,000 times.  
AT29C020  
(continued)  
AT29C020  
DIP Top View  
Pin Configurations  
Pin Name Function  
A0 - A17  
CE  
Addresses  
Chip Enable  
Output Enable  
Write Enable  
OE  
WE  
I/O0 - I/O7 Data Inputs/Outputs  
NC  
No Connect  
PLCC Top View  
TSOP Top View  
Type 1  
0291I/G20-I–6/97  

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