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AT45D041-RC fiches techniques PDF

ATMEL Corporation - 4-Megabit 5-volt Only Serial DataFlash

Numéro de référence AT45D041-RC
Description 4-Megabit 5-volt Only Serial DataFlash
Fabricant ATMEL Corporation 
Logo ATMEL Corporation 





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AT45D041-RC fiche technique
AT45D041
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
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 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
Pin Configurations
(continued)
PLCC
Pin Name
Function
CS
SCK
SI
SO
WP
Chip Select
Serial Clock
Serial Input
Serial Output
Hardware Page Write
Protect Pin
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
RESET
RDY/BUSY
Chip Reset
Ready/Busy
Note: PLCC package pins 16
and 17 are DON’T CONNECT.
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
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
4-Megabit
5-volt Only
Serial
DataFlash
AT45D041
0803C-D–6/97
1

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