R1EX25512ASA00I

R1EX25512ATA00I

R10DS0044EJ0100

Rev.1.00

Oct.04, 2010

Serial Peripheral Interface

512K EEPROM (64-Kword

× 8-bit)

Description

R1EX25xxx series is the Serial Peripheral Interface compatible (SPI) 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.

Features

• Single supply: 1.8 V to 5.5 V

• Serial Peripheral Interface compatible (SPI bus)

 SPI mode 0 (0,0), 3 (1,1)

• Clock frequency: 5 MHz (2.5 V to 5.5 V), 3 MHz (1.8 V to 5.5 V)

• Power dissipation:

 Standby: 5 µA (max)

 Active (Read): 5 mA (max)

 Active (Write): 5 mA (max)

• Automatic page write: 128-byte/page

• Write cycle time: 5 ms (max)

• Endurance: 1,000k Cycles @25 °C

• Data retention: 100 Years @25 °C

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

• Shipping tape and reel

 TSSOP-8pin : 3,000 IC/reel

 SOP-8pin

: 2,500 IC/reel

• Temperature range: −40 to +85°C

• Lead free product.

R10DS0044EJ0100 Rev.1.00

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Oct.04, 2010