Preliminary Datasheet

R1EX24512BSAS0A

R1EX24512BTAS0A

R10DS0025EJ0001

Rev.0.01

Sep, 01, 2010

Two-wire serial interface

512k EEPROM (64-kword

× 8-bit)

Description

R1EX24xxx series are two-wire serial interface EEPROM (Electrically Erasable and Programmable ROM). They

realize high speed, low power consumption and a high level of reliability by employing advanced MONOS memory

technology and CMOS process and low voltage circuitry technology. They also have a 128-byte page programming

function to make their write operation faster.

Note: Renesas Electronics’ serial EEPROM are authorized for using consumer applications such as cellular phone,

camcorders, audio equipment. Therefore, please contact Renesas Electronics’ sales office before using

industrial applications such as automotive systems, embedded controllers, and meters.

Features

• Single supply: 1.8 V to 5.5 V

• Two-wire serial interface (I

• Clock frequency: 1 MHz (2.5 V to 5.5 V) / 400 kHz (1.8 V to 5.5 V)

• Power dissipation:

 Standby: 2 µA (max)

 Active (Read): 1 mA (max)

 Active (Write): 5 mA (max)

• Automatic page write: 128-byte/page

• Write cycle time: 5 ms

• Endurance: 1,000k Cycles @25°C

• Data retention: 100 Years @25°C

• Small size packages: SOP-8pin , TSSOP 8-pin

• Shipping tape and reel

 SOP 8-pin: 2,500 IC/reel

 TSSOP 8-pin: 3,000 IC/reel

• Temperature range: −40 to +85°C

• Lead free products.

Preliminary: The specifications of this device are subject to change without notice. Please contact your nearest

Renesas Electronics’ Sales Dept. regarding specifications.

R10DS0025EJ0001 Rev.0.01

Page 1 of 17

Sep, 01, 2010