AT24C02C Datasheet, PDF (1/23 Pages) ATMEL Corporation – Two-wire Serial Electrically Erasable and Programmable Read-only Memory

Features
• Low-voltage and Standard-voltage Operation
– 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
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 Configuration
Pin Name
A0 - A2
SDA
SCL
WP
GND
VCC
Function
Address Inputs
Serial Data
Serial Clock Input
Write Protect
Ground
Power Supply
Note:
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
8-lead PDIP
A0 1
8 VCC
A1 2
7 WP
A2 3
6 SCL
GND 4
5 SDA
A0
A1
A2
GND
8-lead SOIC
1
8
2
7
3
6
4
5
VCC
WP
SCL
SDA
8-lead TSSOP
A0 1
8 VCC
A1 2
7 WP
A2 3
6 SCL
GND 4
5 SDA
5-lead SOT23
SCL 1
5 WP
GND 2
SDA 3
4 VCC
8-lead UDFN
VCC 8
1 A0
WP 7
2 A1
SCL 6
3 A2
SDA 5
4 GND
Bottom View
8-ball VFBGA
VCC 8
WP 7
SCL 6
SDA 5
1 A0
2 A1
3 A2
4 GND
Bottom View
Two-wire
Serial Electrically
Erasable and
Programmable
Read-only Memory
2K (256 x 8)
Atmel AT24C02C
8700D–SEEPR–8/10