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AT28BV64B-25JI PDF预览

AT28BV64B-25JI

更新时间: 2024-11-27 22:53:59
品牌 Logo 应用领域
爱特美尔 - ATMEL 电池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 247K
描述
64K (8K x 8) Battery-Voltage⑩ Parallel EEPROM with Page Write and Software Data Protection

AT28BV64B-25JI 数据手册

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Features  
Single 2.7V to 3.6V Supply  
Hardware and Software Data Protection  
Low Power Dissipation  
– 15 mA Active Current  
– 20 µA CMOS Standby Current  
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  
64K (8K x 8)  
– Page Write Cycle Time: 10 ms Maximum  
– 1 to 64 Byte Page Write Operation  
DATA Polling for End of Write Detection  
High-reliability CMOS Technology  
– Endurance: 100,000 Cycles  
– Data Retention: 10 Years  
JEDEC Approved Byte-wide Pinout  
Commercial and Industrial Temperature Ranges  
Battery-Voltage™  
Parallel EEPROM  
with Page Write  
and Software  
Description  
Data Protection  
The AT28BV64B is a high-performance electrically erasable programmable read only  
memory (EEPROM). Its 64K of memory is organized as 8,192 words by 8 bits. Manu-  
factured with Atmel’s 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 20 µA.  
AT28BV64B  
(continued)  
Pin Configurations  
PDIP, SOIC  
Top View  
Pin Name  
A0 - A12  
CE  
Function  
Addresses  
NC  
A12  
A7  
1
2
3
4
5
6
7
8
9
28 VCC  
27 WE  
26 NC  
25 A8  
Chip Enable  
Output Enable  
Write Enable  
Data Inputs/Outputs  
No Connect  
A6  
OE  
A5  
24 A9  
A4  
23 A11  
22 OE  
21 A10  
20 CE  
19 I/O7  
18 I/O6  
17 I/O5  
16 I/O4  
15 I/O3  
A3  
WE  
A2  
A1  
I/O0 - I/O7  
NC  
3-Volt, 64K  
A0 10  
I/O0 11  
I/O1 12  
I/O2 13  
GND 14  
E2PROM with  
Data Protection  
DC  
Don’t Connect  
PLCC  
Top View  
TSOP  
Top View  
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  
OE  
A11  
A9  
1
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
A10  
CE  
2
3
I/O7  
I/O6  
I/O5  
I/O4  
I/O3  
GND  
I/O2  
I/O1  
I/O0  
A0  
A8  
4
NC  
WE  
VCC  
NC  
A12  
A7  
5
A1 10  
A0 11  
6
7
NC 12  
I/O0 13  
8
9
10  
11  
12  
13  
14  
A6  
A5  
A4  
A1  
Rev. 0299F–05/28/99  
A3  
A2  
Note:  
PLCC package pins 1 and 17  
are DON’T CONNECT.  

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