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45DB041B PDF预览

45DB041B

更新时间: 2022-11-25 21:27:29
品牌 Logo 应用领域
爱特美尔 - ATMEL 闪存
页数 文件大小 规格书
33页 231K
描述
4-megabit 2.5-volt Only or 2.7-volt Only DataFlash

45DB041B 数据手册

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Features  
Single 2.5V - 3.6V or 2.7V - 3.6V Supply  
Serial Peripheral Interface (SPI) Compatible  
20 MHz Max Clock Frequency  
Page Program Operation  
– Single Cycle Reprogram (Erase and Program)  
– 2048 Pages (264 Bytes/Page) Main Memory  
Supports 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  
Low Power Dissipation  
4-megabit  
– 4 mA Active Read Current Typical  
2.5-volt Only or  
2.7-volt Only  
DataFlash®  
– 2 µA CMOS Standby Current Typical  
Hardware Data Protection Feature  
100% Compatible to AT45DB041 and AT45DB041A  
5.0V-tolerant Inputs: SI, SCK, CS, RESET, and WP Pins  
Commercial and Industrial Temperature Ranges  
Description  
AT45DB041B  
The AT45DB041B is a 2.5-volt or 2.7-volt only, serial interface Flash memory ideally  
suited for a wide variety of digital voice-, image-, program code- and data-storage  
applications. Its 4,325,376 bits of memory are organized as 2048 pages of 264 bytes  
each. In addition to the main memory, the AT45DB041B 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, as well as reading or writing a continuous  
data stream. EEPROM emulation (bit or byte alterability) is easily handled with a self-  
TSOP Top View  
Pin Configurations  
Type 1  
Pin Name  
Function  
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
CS  
Chip Select  
Serial Clock  
Serial Input  
Serial Output  
3
NC  
4
SCK  
SI  
NC  
5
VCC  
GND  
NC  
6
7
8
NC  
9
SO  
NC  
10  
11  
12  
13  
14  
CS  
SCK  
SI  
Hardware Page Write  
Protect Pin  
WP  
SO  
RESET  
Chip Reset  
Ready/Busy  
RDY/BUSY  
28-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  
4
WP  
A
B
C
D
E
5
RESET  
RDY/BUSY  
NC  
NC  
NC  
6
8-SOIC  
SO  
NC  
NC  
NC  
NC  
NC  
NC  
NC  
7
SCK  
GND  
VCC  
8
NC  
9
NC  
CS RDY/BSY WP  
SI  
SCK  
1
2
3
4
8
7
6
5
SO  
10  
11  
12  
13  
14  
NC  
GND  
VCC  
WP  
SO  
NC  
SI  
RESET  
NC  
NC  
RESET  
CS  
NC  
NC  
NC  
NC  
Rev. 1938F–DFLSH–10/02  

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