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AT45D041

更新时间： 2024-11-29 22:39:15
品牌 Logo 应用领域
爱特美尔 - ATMEL 闪存
页数 文件大小 规格书
16页 119K
描述
4-Megabit 5-volt Only Serial DataFlash

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中文翻译

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AT45D041 数据手册

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Features  
• Single 4.5V - 5.5V Supply  
• Serial Interface Architecture  
• Page Program Operation  
- Single Cycle Reprogram (Erase and Program)  
- 2048 Pages (264 Bytes/Page) Main Memory  
• Two 264-Byte Data Buffers - Allows Receiving of Data while Reprogramming of  
Non-Volatile Memory  
• Internal Program and Control Timer  
• Fast Page Program Time - 7 ms Typical  
• 80 µs Typical Page to Buffer Transfer Time  
• Low Power Dissipation  
- 15 mA Active Read Current Typical  
- 20 µA CMOS Standby Current Typical  
• 10 MHz Max Clock Frequency  
4-Megabit  
5-volt Only  
Serial  
DataFlash™  
• Hardware Data Protection Feature  
• Serial Peripheral Interface (SPI) Compatible – Modes 0 and 3  
• CMOS and TTL Compatible Inputs and Outputs  
• Commercial and Industrial Temperature Ranges  
Description  
AT45D041  
The AT45D041 is a 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 AT45D041 also contains two 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 memories 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 facil-  
itates hardware layout, increases system reliability, minimizes switching noise, and  
(continued)  
Pin Configurations  
PLCC  
Pin Name  
Function  
CS  
Chip Select  
Serial Clock  
Serial Input  
Serial Output  
SCK  
SI  
5
6
7
8
9
29 WP  
28 RESET  
27 RDY/BUSY  
26 NC  
SCK  
SI  
SO  
NC  
NC  
25 NC  
NC 10  
NC 11  
NC 12  
NC 13  
24 NC  
SO  
23 NC  
22 NC  
Hardware Page Write  
Protect Pin  
21 NC  
WP  
RESET  
Chip Reset  
Ready/Busy  
Note: PLCC package pins 16  
and 17 are DON’T CONNECT.  
RDY/BUSY  
TSOP Top View  
Type 1  
SOIC  
GND  
NC  
NC  
CS  
SCK  
SI  
1
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
VCC  
NC  
2
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  
3
NC  
2
4
WP  
3
5
RESET  
RDY/BUSY  
NC  
NC  
4
6
NC  
5
SO  
NC  
NC  
NC  
NC  
NC  
NC  
NC  
7
VCC  
GND  
NC  
6
8
NC  
7
9
NC  
8
10  
11  
12  
13  
14  
NC  
NC  
9
NC  
NC  
10  
11  
12  
13  
14  
NC  
CS  
0803C-D–6/97  
NC  
SCK  
SI  
NC  
SO  
1234567...16

中文翻译

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