AT24C02B-PU Datasheet, PDF (1/26 Pages) ATMEL Corporation – Two-wire Serial EEPROM

Features
• Low-voltage and Standard-voltage Operation
– 1.8 (V_CC = 1.8V to 5.5V)
• Internally Organized 256 x 8 (2K)
• Two-wire Serial Interface
• Schmitt Trigger, Filtered Inputs for Noise Suppression
• Bidirectional Data Transfer Protocol
• 1 MHz (5V), 400 kHz (1.8V, 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 (5 ms max)
• High-reliability
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
• 8-lead PDIP, 8-lead JEDEC SOIC, 8-lead Ultra Thin Mini-MAP (MLP 2x3), 5-lead SOT23,
8-lead TSSOP and 8-ball dBGA2 Packages
• Lead-free/Halogen-free
• Available in Automotive
• Die Sales: Wafer Form and Tape and Reel
Description
The AT24C02B provides 2048 bits of serial electrically erasable and programmable
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 AT24C02B is available in space-saving
8-lead PDIP, 8-lead JEDEC SOIC, 8-lead Ultra Thin Mini-MAP (MLP 2x3), 5-lead
SOT23, 8-lead TSSOP, and 8-ball dBGA2 packages and is accessed via a Two-wire
serial interface. In addition, the AT24C02B is available in 1.8V (1.8V to 5.5V) version.
Two-wire
Serial EEPROM
2K (256 x 8)
AT24C02B
Not
Recommended
for New Design
Table 0-1. Pin Configuration _{8-lead Ultra-Thin}
Pin Name Function
Mini-MAP (MLP 2x3)
A0 - A2
SDA
Address Inputs
Serial Data
VCC 8
WP 7
SCL 6
1 A0
2 A1
3 A2
SCL
Serial Clock Input
SDA 5 4 GND
WP
Write Protect
Bottom View
GND
VCC
Ground
Power Supply
8-lead TSSOP
A0 1 8 VCC
A1 2 7 WP
A2 3 6 SCL
Note:
GND 4 5 SDA
For use of 5-lead SOT23, the
software A2, A1, and A0 bits in
the device address word
5-lead SOT23
must be set to zero to prop- ^{SCL 1}
5 WP
erly communicate.
GND 2
SDA 3
4 VCC
8-ball dBGA2
VCC 8 1 A0
WP 7 2 A1
SCL 6 3 A2
SDA 5 4 GND
Bottom View
8-lead SOIC
A0 1 8 VCC
A1 2
A2 3
7 WP
6 SCL
GND 4 5 SDA
8-lead PDIP
A0 1
A1 2
8 VCC
7 WP
A2 3 6 SCL
GND 4 5 SDA
5126H–SEEPR–8/07