AT24HC02B_0701 Datasheet, PDF (1/16 Pages) ATMEL Corporation – Two-wire Automotive Temperature Serial EEPROM

Features
• Write Protect Pin for Hardware Data Protection
– Utilizes Different Array Protection Compared to the AT24C02B
• Medium-voltage and Standard-voltage Operation
– 2.5 (V_CC = 2.5V to 5.5V)
• Automotive Temperature Range –40°C to 125°C
• Internally Organized 256 x 8 (2K)
• Two-wire Serial Interface
• Schmitt Trigger, Filtered Inputs for Noise Suppression
• Bidirectional Data Transfer Protocol
• 400 kHz (2.5V) Compatibility
• Write Protect Pin for Hardware Data Protection
• 8-byte Page Write Modes
• Partial Page Writes are Allowed
• Self-timed Write Cycle (5 ms max)
• High-reliability
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
• 8-lead JEDEC SOIC and 8-lead TSSOP Packages
Description
The AT24HC02B 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 automotive applications where low-power and low-voltage
operation are essential. The AT24HC02B is available in space-saving 8-lead JEDEC
SOIC and 8-lead TSSOP packages and is accessed via a two-wire serial interface. In
addition, the entire family is available in 2.5V (2.5V to 5.5V) versions.
Table 1. Pin Configurations
Pin Name
Function
A0 − A2
Address Inputs
SDA
Serial Data
SCL
Serial Clock Input
WP
Write Protect
NC
No Connect
8-lead SOIC
A0 1
A1 2
A2 3
GND 4
8 VCC
7 WP
6 SCL
5 SDA
Two-wire
Automotive
Temperature
Serial EEPROM
2K (256 x 8)
AT24HC02B
Preliminary
8-lead TSSOP
A0 1
A1 2
A2 3
GND 4
8 VCC
7 WP
6 SCL
5 SDA
5192A–SEEPR–1/07
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