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AT45DB041A fiches techniques PDF

ATMEL Corporation - 4-megabit 2.5-volt Only Serial DataFlasH

Numéro de référence AT45DB041A
Description 4-megabit 2.5-volt Only Serial DataFlasH
Fabricant ATMEL Corporation 
Logo ATMEL Corporation 





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AT45DB041A fiche technique
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
Low Power Dissipation
– 4 mA Active Read Current Typical
– 2 µA CMOS Standby Current Typical
13 MHz Max Clock Frequency
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
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
Pin Configurations
www.DataSheet4U.com
(continued)
Pin Name
CS
SCK
SI
SO
WP
RESET
Function
Chip Select
Serial Clock
Serial Input
Serial Output
Hardware Page Write
Protect Pin
Chip Reset
RDY/BUSY
RESET
WP
NC
NC
VCC
GND
NC
NC
NC
CS
SCK
SI
SO
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TSOP Top View
Type 1
28 NC
27 NC
26 NC
25 NC
24 NC
23 NC
22 NC
21 NC
20 NC
19 NC
18 NC
17 NC
16 NC
15 NC
RDY/BUSY Ready/Busy
PLCC
SCK
SI
SO
NC
NC
NC
NC
NC
NC
5
6
7
8
9
10
11
12
13
29 WP
28 RESET
27 RDY/BUSY
26 NC
25 NC
24 NC
23 NC
22 NC
21 NC
Note: PLCC package pins 16
and 17 are DON’T CONNECT.
SOIC
GND
NC
NC
CS
SCK
SI
SO
NC
NC
NC
NC
NC
NC
NC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28 VCC
27 NC
26 NC
25 WP
24 RESET
23 RDY/BUSY
22 NC
21 NC
20 NC
19 NC
18 NC
17 NC
16 NC
15 NC
CBGA Top View
Through Package
12 3
A
NC NC
B
SCK GND VCC
C
CS RDY/BSY WP
D
SO SI RESET
E
NC NC NC
4-megabit
2.5-volt Only
Serial
DataFlash®
AT45DB041A
Recommend using
AT45DB041B for new
designs.
Rev. 1432D–01/01
1

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