AT45DB321C-RU(2006) データシートの表示（PDF） - Atmel Corporation
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AT45DB321C-RU Datasheet PDF : 40 Pages
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To allow for simple in-system reprogrammability, the AT45DB321C does not require high input
voltages for programming. The device operates from a single power supply, 2.7V to 3.6V, for
both the program and read operations. The AT45DB321C is enabled through the chip select pin
(CS) and accessed via a three-wire interface consisting of the Serial Input (SI), Serial Output
(SO), and the Serial Clock (SCK).
All programming and erase cycles are self-timed.
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.
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
TSOP Top View – Type 1
Figure 2-2. CBGA Top View
28 NC
through Package
27 NC
26 NC
25 NC
12345
24 NC
23 NC
22 NC
21 NC
20 NC
19 NC
18 NC
17 NC
16 NC
15 NC
A
NC NC NC NC
B
NC SCK GND VCC NC
C
NC CS RDY/BSY WP NC
D
NC SO SI RESET NC
E
NC NC NC NC NC
Figure 2-3. SOIC Top View
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
Figure 2-4. DataFlash Card(1) Top View
through Package
7654321
Figure 2-5. CASON – Top View
through Package
SI 1
SCK 2
RESET 3
CS 4
8 SO
7 GND
6 VCC
5 WP
Note: 1. See AT45DCB004C Datasheet
2 AT45DB321C
3387L–DFLASH–6/06
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