AT24HC02B_07 Datasheet, PDF (1/17 Pages) ATMEL Corporation – Two-wire Serial EEPROM

Features
• Write Protect Pin for Hardware Data Protection
– Utilizes Different Array Protection Compared to the AT24C02B
• 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) and 400 kHz (1.8V, 2.5V, 2.7V) Clock Rate
• 8-byte Page
• Partial Page Writes Allowed
• Self-timed Write Cycle (5 ms Max)
• High Reliability
– Endurance: One Million Write Cycles
– Data Retention: 100 Years
• 8-lead PDIP, 8-lead JEDEC SOIC and 8-lead TSSOP Packages
• Die Sales: Wafer Form, Waffle Pack, and Bumped Wafers
Description
Two-wire Serial
EEPROM
2K (256 x 8)
AT24HC02B
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 opti-
mized for use in many industrial and commercial applications where low-power and low-
voltage operation are essential. The AT24HC02B is available in space-saving 8-lead
PDIP, 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 1.8V (1.8V to 5.5V) version.
Preliminary
Table 1. Pin Configuration
Pin Name
Function
A0–A2
Address Inputs
SDA
Serial Data
SCL
Serial Clock Input
WP
Write Protect
8-lead TSSOP
A0 1
A1 2
A2 3
GND 4
8 VCC
7 WP
6 SCL
5 SDA
8-lead PDIP
A0 1
A1 2
A2 3
GND 4
8 VCC
7 WP
6 SCL
5 SDA
8-lead SOIC
A0 1
A1 2
A2 3
GND 4
8 VCC
7 WP
6 SCL
5 SDA
Rev. 5134C–SEEPR–3/07
1