Features
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Low-voltage and Standard-voltage Operation
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– V
CC
= 1.7V to 5.5V
Internally Organized 256 x 8 (2K)
Two-wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression
Bidirectional Data Transfer Protocol
1MHz (5V), 400kHz (1.7V, 2.5V, 2.7V) Compatibility
Write Protect Pin for Hardware Data Protection
8-byte Page (2K) Write Modes
Partial Page Writes Allowed
Self-timed Write Cycle (5ms max)
High-reliability
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
Green (Pb/Halide-free/RoHS Compliant) Package Options
Die Sales: Wafer Form and Tape and Reel
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Two-wire
Serial Electrically
Erasable and
Programmable
Read-only Memory
2K (256 x 8)
Description
The Atmel
®
AT24C02C provides 2048-bits of serial electrically erasable and program-
mable read-only memory (EEPROM) organized as 256-words of 8-bits each. The
device is optimized for use in many industrial and commercial applications where low-
power and low-voltage operation are essential. The AT24C02C is available in space-
saving 8-lead PDIP, 8-lead TSSOP, 8-lead JEDEC SOIC, 8-lead UDFN
,
5-lead
SOT23 and 8-ball VFBGA packages and is accessed via a two-wire serial interface.
Table 0-1.
Pin Name
A0 - A2
SDA
SCL
WP
GND
VCC
Note:
Atmel AT24C02C
Pin Configuration
Function
Address Inputs
Serial Data
Serial Clock Input
Write Protect
Ground
Power Supply
A0
A1
A2
GND
8-lead PDIP
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
A0
A1
A2
GND
8-lead SOIC
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
8-lead TSSOP
A0
A1
A2
GND
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
8-lead UDFN
VCC 8
WP 7
SCL 6
SDA 5
1 A0
2 A1
3 A2
4 GND
For use of 5-lead
SOT23, the software
A2, A1, and A0 bits in
the device address
word must be set to
zero to properly
communicate
Bottom View
5-lead SOT23
SCL
GND
SDA
1
2
3
4
VCC
5
WP
8-ball VFBGA
VCC 8
WP 7
SCL 6
SDA 5
1 A0
2 A1
3 A2
4 GND
Bottom View
8700D–SEEPR–8/10
ATMEL [ ATMEL CORPORATION ]
