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AT29C020-70PC PDF预览

AT29C020-70PC

更新时间: 2024-09-19 23:32:39
品牌 Logo 应用领域
其他 - ETC 可编程只读存储器电动程控只读存储器电可擦编程只读存储器
页数 文件大小 规格书
17页 242K
描述
EEPROM|FLASH|256KX8|CMOS|DIP|32PIN|PLASTIC

AT29C020-70PC 数据手册

 浏览型号AT29C020-70PC的Datasheet PDF文件第2页浏览型号AT29C020-70PC的Datasheet PDF文件第3页浏览型号AT29C020-70PC的Datasheet PDF文件第4页浏览型号AT29C020-70PC的Datasheet PDF文件第5页浏览型号AT29C020-70PC的Datasheet PDF文件第6页浏览型号AT29C020-70PC的Datasheet PDF文件第7页 
Features  
Fast Read Access Time – 70 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 8K Bytes 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)  
– 40 mA Active Current  
– 100 µA CMOS Standby Current  
5-volt Only  
Flash Memory  
Typical Endurance > 10,000 Cycles  
Single 5V 10% Supply  
CMOS and TTL Compatible Inputs and Outputs  
Commercial and Industrial Temperature Ranges  
Description  
AT29C020  
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  
access times to 70 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.  
DIP Top View  
Pin Configurations  
NC  
A16  
A15  
A12  
A7  
1
2
3
4
5
6
7
8
9
32 VCC  
31 WE  
30 A17  
29 A14  
28 A13  
27 A8  
Pin Name  
A0 - A17  
CE  
Function  
Addresses  
Chip Enable  
Output Enable  
Write Enable  
Data Inputs/Outputs  
No Connect  
A6  
A5  
26 A9  
OE  
A4  
25 A11  
24 OE  
23 A10  
22 CE  
21 I/O7  
20 I/O6  
19 I/O5  
18 I/O4  
17 I/O3  
A3  
WE  
A2 10  
A1 11  
A0 12  
I/O0 - I/O7  
NC  
I/O0 13  
I/O1 14  
I/O2 15  
GND 16  
TSOP Top View  
Type 1  
PLCC Top View  
A11  
A9  
1
32  
31  
30  
29  
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
OE  
2
A10  
CE  
A8  
3
A7  
A6  
A5  
A4  
A3  
5
6
7
8
9
29 A14  
A13  
A14  
A17  
WE  
VCC  
NC  
A16  
A15  
A12  
A7  
4
I/O7  
I/O6  
I/O5  
I/O4  
I/O3  
GND  
I/O2  
I/O1  
I/O0  
A0  
28 A13  
27 A8  
26 A9  
25 A11  
24 OE  
23 A10  
22 CE  
21 I/O7  
5
6
7
8
A2 10  
A1 11  
A0 12  
I/O0 13  
9
10  
11  
12  
13  
14  
15  
16  
A6  
A1  
A5  
A2  
Rev. 0291M–FLASH–05/02  
A4  
A3  

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