AT45DB041B Datasheet, PDF (2/35 Pages) ATMEL Corporation – 4-megabit 2.5-volt or 2.7-volt DataFlash

When the device is shipped from Atmel, the most significant page of the memory array may not
be erased. In other words, the contents of the last page may not be filled with FFH.
2. Pin Configurations and Packages
Table 2-1. Pin Configurations
Pin Name
Function
CS
Chip Select
SCK
Serial Clock
SI
Serial Input
SO
Serial Output
WP
Hardware Page Write Protect Pin
RESET
Chip Reset
RDY/BUSY
Ready/Busy
Figure 2-1.
Figure 2-2.
Figure 2-4.
TSOP Top View Type 1
RDY/BUSY 1
RESET 2
WP 3
NC 4
NC 5
VCC 6
GND 7
NC 8
NC 9
NC 10
CS 11
SCK 12
SI 13
SO 14
CASON – Top View through Package
SI 1
SCK 2
RESET 3
CS 4
28-SOIC⁽¹⁾
8 SO
7 GND
6 VCC
5 WP
GND
1
NC
2
NC
3
CS
4
SCK
5
SI
6
SO
7
NC
8
NC
9
NC
10
NC
11
NC
12
NC
13
NC
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
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
Figure 2-3.
8-SOIC
SI 1
SCK 2
RESET 3
CS 4
8 SO
7 GND
6 VCC
5 WP
Figure 2-5.
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
Note:
1. The next generation DataFlash devices will not be
offered in 28-SOIC package, therefore, this pack-
age is not recommended for new designs.
2 AT45DB041B
3443C–DFLSH–5/05