R1EX24256ASA00A R1EX24256ATB00A Two-wire serial in.
Renesas Technology
R1EX24256ASA00A - Two-wire serial interface 256k EEPROM
R1EX24256ASA00A R1EX24256ATB00A Two-wire serial interface 256k EEPROM (32-kword × 8-bit) REJ03C0321-0002 Preliminary Rev.0.02 Jan. 10, 2008 www.DataS.