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AT45DB041A PDF预览

AT45DB041A

更新时间: 2024-11-23 23:32:43
品牌 Logo 应用领域
其他 - ETC 闪存静态存储器
页数 文件大小 规格书
28页 412K
描述
4M bit. 2.7-Volt Only Serial-Interface Flash with Two 264-Byte SRAM Buffers. For new designs please use AT45DB041B.

AT45DB041A 数据手册

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Features  
100% Compatible to AT45DB041  
Single 2.5V - 3.0V or 2.7V - 3.6V Supply  
Serial Interface Architecture  
Page Program Operation  
– Single Cycle Reprogram (Erase and Program)  
– 2048 Pages (264 Bytes/Page) Main Memory  
Optional Page and Block Erase Operations  
Two 264-byte SRAM Data Buffers – Allows Receiving of Data  
while Reprogramming of Nonvolatile Memory  
Continuous Read Capability through Entire Array  
Internal Program and Control Timer  
4-megabit  
2.5-volt Only  
Serial  
Low Power Dissipation  
– 4 mA Active Read Current Typical  
– 2 µA CMOS Standby Current Typical  
13 MHz Max Clock Frequency  
Hardware Data Protection Feature  
DataFlash®  
Serial Peripheral Interface (SPI) Compatible – Modes 0 and 3  
CMOS and TTL Compatible Inputs and Outputs  
Commercial and Industrial Temperature Ranges  
AT45DB041A  
Description  
The AT45DB041A is a 2.5-volt only, serial interface Flash memory suitable for  
in-system reprogramming. Its 4,325,376 bits of memory are organized as 2048 pages  
of 264 bytes each. In addition to the main memory, the AT45DB041A also contains  
two SRAM data buffers of 264 bytes each. The buffers allow receiving of data while  
a page in the main memory is being reprogrammed. Unlike conventional Flash  
(continued)  
Recommend using  
AT45DB041B for new  
designs.  
Pin Configurations  
TSOP Top View  
Pin Name  
Function  
Type 1  
CS  
Chip Select  
Serial Clock  
Serial Input  
Serial Output  
RDY/BUSY  
RESET  
WP  
1
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
NC  
NC  
NC  
NC  
NC  
NC  
NC  
NC  
NC  
NC  
NC  
NC  
NC  
NC  
2
SCK  
SI  
3
NC  
4
NC  
5
VCC  
GND  
NC  
6
7
SO  
8
NC  
9
Hardware Page Write  
Protect Pin  
NC  
10  
11  
12  
13  
14  
WP  
CS  
SCK  
SI  
RESET  
Chip Reset  
Ready/Busy  
SO  
RDY/BUSY  
PLCC  
SOIC  
CBGA Top View  
Through Package  
GND  
NC  
NC  
CS  
SCK  
SI  
1
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
VCC  
NC  
1
2
3
2
3
NC  
SCK  
SI  
5
6
7
8
9
29 WP  
4
WP  
28 RESET  
27 RDY/BUSY  
26 NC  
5
RESET  
RDY/BUSY  
NC  
SO  
NC  
NC  
A
6
NC  
NC  
SO  
NC  
NC  
NC  
NC  
NC  
NC  
NC  
7
25 NC  
B
C
D
E
8
NC  
NC 10  
NC 11  
NC 12  
NC 13  
24 NC  
SCK  
GND  
VCC  
9
NC  
23 NC  
10  
11  
12  
13  
14  
NC  
22 NC  
CS RDY/BSY WP  
NC  
21 NC  
NC  
SO  
NC  
SI  
RESET  
NC  
NC  
NC  
NC  
Rev. 1432D–01/01  
Note: PLCC package pins 16  
and 17 are DON’T CONNECT.  

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