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AT28BV256-20TC PDF预览

AT28BV256-20TC

更新时间: 2024-11-27 23:32:23
品牌 Logo 应用领域
其他 - ETC 内存集成电路光电二极管异步传输模式ATM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
12页 279K
描述
x8 EEPROM

AT28BV256-20TC 数据手册

 浏览型号AT28BV256-20TC的Datasheet PDF文件第2页浏览型号AT28BV256-20TC的Datasheet PDF文件第3页浏览型号AT28BV256-20TC的Datasheet PDF文件第4页浏览型号AT28BV256-20TC的Datasheet PDF文件第5页浏览型号AT28BV256-20TC的Datasheet PDF文件第6页浏览型号AT28BV256-20TC的Datasheet PDF文件第7页 
Features  
Single 2.7V - 3.6V Supply  
Fast Read Access Time – 200 ns  
Automatic Page Write Operation  
Internal Address and Data Latches for 64 Bytes  
Internal Control Timer  
Fast Write Cycle Times  
Page Write Cycle Time: 10 ms Maximum  
1- to 64-byte Page Write Operation  
Low Power Dissipation  
15 mA Active Current  
256K (32K x 8)  
Battery-Voltage™  
Parallel  
20 µA CMOS Standby Current  
Hardware and Software Data Protection  
DATA Polling for End of Write Detection  
High Reliability CMOS Technology  
Endurance: 10,000 Cycles  
Data Retention: 10 Years  
JEDEC Approved Byte-wide Pinout  
Commercial and Industrial Temperature Ranges  
EEPROMs  
Description  
AT28BV256  
The AT28BV256 is a high-performance Electrically Erasable and Programmable Read  
Only Memory. Its 256K of memory is organized as 32,768 words by 8 bits. Manufac-  
tured with Atmels advanced nonvolatile CMOS technology, the device offers access  
times to 200 ns with power dissipation of just 54 mW. When the device is deselected,  
the CMOS standby current is less than 200 µA.  
(continued)  
Pin Configurations  
PDIP, SOIC  
Top View  
Pin Name  
A0 - A14  
CE  
Function  
Addresses  
A14  
A12  
A7  
1
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
VCC  
2
WE  
A13  
A8  
Chip Enable  
Output Enable  
Write Enable  
Data Inputs/Outputs  
No Connect  
3
A6  
4
OE  
A5  
5
A9  
A4  
6
A11  
OE  
WE  
A3  
7
A2  
8
A10  
CE  
I/O0 - I/O7  
NC  
A1  
9
A0  
10  
11  
12  
13  
14  
I/O7  
I/O6  
I/O5  
I/O4  
I/O3  
I/O0  
I/O1  
I/O2  
GND  
DC  
Dont Connect  
PLCC  
Top View  
TSOP  
Top View  
OE  
A11  
A9  
1
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
A10  
CE  
A6  
A5  
A4  
A3  
A2  
5
6
7
8
9
29 A8  
28 A9  
27 A11  
26 NC  
25 OE  
24 A10  
23 CE  
22 I/O7  
21 I/O6  
2
3
I/O7  
I/O6  
I/O5  
I/O4  
I/O3  
GND  
I/O2  
I/O1  
I/O0  
A0  
A8  
4
A13  
WE  
VCC  
A14  
A12  
A7  
5
6
A1 10  
A0 11  
7
8
NC 12  
I/O0 13  
9
10  
11  
12  
13  
14  
A6  
A5  
A4  
A1  
Rev. 0273G11/99  
A3  
A2  
Note: PLCC package pins 1 and 17  
are DONT CONNECT.  

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