R1EX24256ASAS0I_10 Datasheet, PDF (3/26 Pages) Renesas Technology Corp – Two-wire serial interface 256k EEPROM (32-kword × 8-bit)

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 (I²C serial bus)
• 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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