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AT45DB321B-TJ PDF预览

AT45DB321B-TJ

更新时间: 2024-02-19 15:48:11
品牌 Logo 应用领域
爱特美尔 - ATMEL 光电二极管
页数 文件大小 规格书
32页 240K
描述
Flash, 32MX1, PDSO32, 8 X 20 MM, PLASTIC, MO-142BD, TSOP1-32

AT45DB321B-TJ 数据手册

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Features  
Single 2.7V - 3.6V Supply  
Serial Peripheral Interface (SPI) Compatible  
20 MHz Max Clock Frequency  
Page Program Operation  
– Single Cycle Reprogram (Erase and Program)  
– 8192 Pages (528 Bytes/Page) Main Memory  
Supports Page and Block Erase Operations  
Two 528-byte SRAM Data Buffers – Allows Receiving of Data  
while Reprogramming of Nonvolatile Memory  
Continuous Read Capability through Entire Array  
– Ideal for Code Shadowing Applications  
Low Power Dissipation  
32-megabit  
2.7-volt Only  
DataFlash®  
– 4 mA Active Read Current Typical  
– 2 µA CMOS Standby Current Typical  
Hardware Data Protection Feature  
100% Compatible to AT45DB321  
5.0V-tolerant Inputs: SI, SCK, CS, RESET and WP Pins  
Commercial and Industrial Temperature Ranges  
AT45DB321B  
Description  
The AT45DB321B is a 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 34,603,008 bits of memory are organized as 8192 pages of 528 bytes each. In  
addition to the main memory, the AT45DB321B also contains two SRAM  
data buffers of 528 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  
Pin Configurations  
Pin Name  
Function  
CBGA Top View through Package  
1
2
3
4
5
CS  
Chip Select  
A
B
C
D
E
F
SCK  
Serial Clock  
NC  
NC  
NC  
NC  
NC  
NC  
NC  
NC  
NC  
NC  
NC  
NC  
NC  
NC  
SI  
Serial Input  
NC SCK GND VCC NC  
SO  
Serial Output  
Hardware Page Write Protect Pin  
Chip Reset  
NC  
NC  
NC  
NC  
NC  
CS RDY/BSY WP NC  
WP  
SO  
NC  
NC  
NC  
SI RESET NC  
G
H
J
NC  
NC  
NC  
NC  
NC  
NC  
NC  
NC  
NC  
RESET  
RDY/BUSY  
Ready/Busy  
DataFlash Card(1)  
SOIC  
TSOP Top View  
Type 1  
GND  
NC  
NC  
CS  
SCK  
SI  
1
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
VCC  
NC  
7
6 5 4 3 2 1  
2
RDY/BUSY  
RESET  
WP  
1
32  
31  
30  
29  
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
NC  
NC  
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
NC  
6
8
NC  
VCC  
GND  
NC  
7
9
NC  
8
10  
11  
12  
13  
14  
NC  
9
NC  
NC  
10  
11  
12  
13  
14  
15  
16  
NC  
NC  
NC  
NC  
NC  
CS  
SCK  
SI  
Note:  
1. See AT45DCB004 Datasheet  
SO  
Rev. 2223E–DFLASH–11//03  

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