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AT45DB041

更新时间： 2024-11-19 22:50:15
品牌 Logo 应用领域
爱特美尔 - ATMEL 闪存
页数 文件大小 规格书
18页 212K
描述
4-Megabit 2.7-volt Only Serial DataFlash

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中文翻译

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AT45DB041 数据手册

 浏览型号AT45DB041的Datasheet PDF文件第2页浏览型号AT45DB041的Datasheet PDF文件第3页浏览型号AT45DB041的Datasheet PDF文件第4页浏览型号AT45DB041的Datasheet PDF文件第5页浏览型号AT45DB041的Datasheet PDF文件第6页浏览型号AT45DB041的Datasheet PDF文件第7页 
Features  
• Single 2.7V - 3.6V Supply  
• Serial Interface Architecture  
• Page Program Operation  
– Single Cycle Reprogram (Erase and Program)  
– 2048 Pages (264 Bytes/Page) Main Memory  
• Two 264-Byte SRAM Data Buffers – Allows Receiving of Data  
While Reprogramming of Non-Volatile Memory  
• Internal Program and Control Timer  
• Fast Page Program Time – 7 ms Typical  
• 120 µs Typical Page to Buffer Transfer Time  
• Low Power Dissipation  
– 4 mA Active Read Current Typical  
– 8 µA CMOS Standby Current Typical  
• 5 MHz Max Clock Frequency  
• Hardware Data Protection Feature  
4-Megabit  
2.7-volt Only  
Serial  
DataFlash®  
• Serial Peripheral Interface (SPI) Compatible – Modes 0 and 3  
• CMOS and TTL Compatible Inputs and Outputs  
• Commercial and Industrial Temperature Ranges  
Description  
AT45DB041  
The AT45DB041 is a 2.7-volt only, serial interface Flash memory suitable for in-sys-  
tem reprogramming. Its 4,325,376 bits of memory are organized as 2048 pages of  
264-bytes each. In addition to the main memory, the AT45DB041 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 memo-  
ries that are accessed randomly with multiple address lines and a parallel interface,  
the DataFlash uses a serial interface to sequentially access its data. The simple serial  
interface facilitates hardware layout, increases system reliability, minimizes switching  
(continued)  
Pin Configurations  
PLCC  
SOIC  
Pin Name  
Function  
GND  
NC  
NC  
CS  
SCK  
SI  
1
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
VCC  
NC  
2
CS  
Chip Select  
Serial Clock  
Serial Input  
Serial Output  
3
NC  
SCK  
SI  
5
6
7
8
9
29 WP  
4
WP  
28 RESET  
27 RDY/BUSY  
26 NC  
SCK  
SI  
5
RESET  
RDY/BUSY  
NC  
SO  
NC  
NC  
6
SO  
NC  
NC  
NC  
NC  
NC  
NC  
NC  
7
25 NC  
8
NC  
NC 10  
NC 11  
NC 12  
NC 13  
24 NC  
9
NC  
SO  
23 NC  
10  
11  
12  
13  
14  
NC  
22 NC  
NC  
Hardware Page Write  
Protect Pin  
21 NC  
NC  
WP  
NC  
NC  
RESET  
Chip Reset  
Ready/Busy  
Note: PLCC package pins 16  
and 17 are DON’T CONNECT.  
RDY/BUSY  
TSOP Top View  
Type 1  
CBGA Top View  
Through Package  
1
2
3
4
5
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
3
NC  
4
NC  
5
A
B
C
D
E
NC  
NC  
NC  
NC  
VCC  
GND  
NC  
6
7
NC SCK GND VCC NC  
8
NC  
9
NC  
NC  
NC  
CS RDY/BSY WP NC  
NC  
10  
11  
12  
13  
14  
CS  
SO  
NC  
SI RESET NC  
NC  
NC NC  
SCK  
SI  
Rev. 0669D–07/98  
SO  
1234567...18

中文翻译

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