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AT45DB041B-TC-2.5 fiches techniques PDF

ATMEL Corporation - 4-megabit 2.5-volt Only or 2.7-volt Only DataFlash

Numéro de référence AT45DB041B-TC-2.5
Description 4-megabit 2.5-volt Only or 2.7-volt Only DataFlash
Fabricant ATMEL Corporation 
Logo ATMEL Corporation 





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AT45DB041B-TC-2.5 fiche technique
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 mA Active Read Current Typical
– 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
4-megabit
2.5-volt Only or
2.7-volt Only
DataFlash®
Description
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-
AT45DB041B
Pin Configurations
Pin Name Function
CS Chip Select
SCK
Serial Clock
SI Serial Input
SO Serial Output
WP
RESET
Hardware Page Write
Protect Pin
Chip Reset
RDY/BUSY Ready/Busy
8-SOIC
SI
SCK
RESET
CS
1
2
3
4
8 SO
7 GND
6 VCC
5 WP
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
28-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
Rev. 1938F–DFLSH–10/02
1

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