HN58X24128I/HN58X24256I Two-wire serial interface .
HN58X24128I - Two-wire serial interface/ 128k EEPROM (16-kword x 8-bit)/ 256k EEPROM (32-kword x 8-bit)
HN58X24128I/HN58X24256I Two-wire serial interface 128k EEPROM (16-kword × 8-bit) 256k EEPROM (32-kword × 8-bit) ADE-203-1029B (Z) Rev. 2.0 Nov. 26, 1.