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AT45DB321D-CNU Datasheet(PDF) 2 Page - ATMEL Corporation

Part # AT45DB321D-CNU
Description  32-megabit 2.7-volt DataFlash
Download  55 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT45DB321D-CNU Datasheet(HTML) 2 Page - ATMEL Corporation

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3597H–DFLASH–02/07
AT45DB321D [Preliminary]
sequentially access its data. The simple sequential access dramatically reduces active pin
count, facilitates hardware layout, increases system reliability, minimizes switching noise, and
reduces package size. The device is optimized for use in many commercial and industrial appli-
cations where high-density, low-pin count, low-voltage and low-power are essential.
To allow for simple in-system reprogrammability, the AT45DB321D 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 AT45DB321D 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 Pinouts
Figure 2-1.
MLF and CASON
Top View through Package
Figure 2-2.
SOIC Top View
Figure 2-3.
DataFlash Card
(1)
Top View through Package
Note:
1. See AT45DCB004D Datasheet.
Figure 2-4.
TSOP Top View: Type 1
Note:
TSOP package is not recommended for new designs. Future die
shrinks will support 8-pin packages only.
SI
SCK
RESET
CS
SO
GND
VCC
WP
8
7
6
5
1
2
3
4
1
2
3
4
8
7
6
5
SI
SCK
RESET
CS
SO
GND
VCC
WP
76 54321
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
RDY/BUSY
RESET
WP
NC
NC
VCC
GND
NC
NC
NC
CS
SCK
SI
SO
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC


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