Features
• MultiMediaCard (MMC) Form Factor
• Single 2.7V to 3.6V Supply
• 20 MHz Max Clock Frequency
• Serial Peripheral Interface (SPI) Compatible
• Low Power Dissipation
– 4 mA Active Read Current Typical
– 2 µA CMOS Standby Current Typical
• Industrial Temperature Range
Description
The AT45DCB008, AT45DCB004 and AT45DCB002 are 2.7-volt only SPI compatible
serial interface DataFlash
byte (32-Mbit) and 2-megabyte (16-Mbit) densities. These 7-pin cards are form factor
compatible to the MultiMediaCard standard leveraging on a wide range of low cost
connectors that are commercially available. Additionally, the DataFlash Card is pinout
compatible to the SPI version of the MMC card.
The small form factor and simple interface make the DataFlash Card ideal for a wide
variety of data- and program code-storage applications where a removable storage
medium is required. Applications range from voice/audio, text or image storage to software applications, system upgrades and software patches.
For detailed device specifications, please refer to the corresponding DataFlash
datasheets:
• AT45DCB008 reference AT45DB642
• AT45DCB004 reference AT45DB321B
• AT45DCB002 reference AT45DB161B
®
Cards. They are offered in 8-megabyte (64-Mbit), 4-mega-
Pin Configuration
Pin # Pin Name Function
1CS Chip Select
2 SI Serial Input
3 GND Ground
4 VCC Supply
DataFlash Card
Top V i ew
7654321
8-megabyte,
4-megabyte,
and 2-megabyte
2.7-volt Only
DataFlash
®
Cards
AT45DCB008
AT45DCB004
AT45DCB002
5 SCK Serial Clock
6 NC No Connect
7 SO Serial Output
Rev. 3257A–11/01
1
Ordering Information
I
(mA)
f
SCK
(MHz)
20 10 0.01 AT45DCB008
CC
Ordering Code Package Operation RangeActive Standby
AT45DCB004
AT45DCB002
7DF1 Industrial
(-40°C to 85°C)
Package Type
7DF1 7-lead, 2.5 mm Pitch 24 x 32 x 1.4 mm Body DataFlash Card
2
AT45DCB002/B004/B008
3257A–11/01
Packaging Information
7DF1 – DataFlash Card
AT45DCB002/B004/B008
E2
LABEL AREA
D
3XR1.0
C
B
E1
E
TOP VIEW
E3
1 2 3 4 5 6 7
BOTTOM VIEW
A
D1
SIDE VIEW
R0.25 ALL AROUND
COMMON DIMENSIONS
(Unit of Measure = mm)
e
SYMBOL
G
F
A 1.30 1.40 1.50
B 2.40 TYP
C 4.00 TYP
D 31.90 32.00 32.10
D1 28.00 REF
E 23.90 24.00 24.10
E1 22.00 REF
E2 20.00 REF
E3 15.00 TYP
F 20.00 REF
G 15.00 TYP
e 2.50 TYP
MIN
NOM
MAX
NOTE
3257A–11/01
2325 Orchard Parkway
R
San Jose, CA 95131
TITLE
7DF1, 7-pad, 2.5 mm Pitch 24 x 32 x 1.4 mm Body DataFlash Card
DRAWING NO.
7DF1
10/09/01
REV.
A
3
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e-mail
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Web Site
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© Atmel Corporation 2001.
Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standard warranty
which is detailed in Atmel’s Terms and Conditions located on the Company’s web site. The Company assumes no responsibility for any errors
which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does
not make any commitment to update the information contained herein. No licenses to patents or other intellectual property of Atmel are granted
by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel’s products are not authorized for use as critical
components in life support devices or systems.
AT ME L® and DataFlash® are the registered trademarks of Atmel.
Other terms and product names may be the trademarks of others.
Printed on recycled paper.
3257A–11/01/0M
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