R1EX24256ASAS0I

R1EX24256ATBS0I

Two-wire serial interface

256k EEPROM (32-kword × 8-bit)

REJ03C0327-0100

Rev.1.00

Oct. 26, 2009

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 64-byte page programming function to make their write operation faster.

.

Features

•

Single supply: 1.8 V to 5.5 V

•

Two-wire serial interface (I

•

Clock frequency: 400 kHz

•

Power dissipation:

 Standby: 2 µA (max)

 Active (Read): 1 mA (max)

 Active (Write): 5 mA (max)

•

Automatic page write: 64-byte/page

•

Write cycle time: 5 ms

•

Endurance:

1,000kCycles @25

°C

•

Data retention: 100 Years @25

°C

REJ03C0327-0100

Rev.1.00

Oct. 26, 2009

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