ST93C06 ST93C06C 256 bit (16 x 16 or 32 x 8) SERIA.
ST93C06C - 256 bit 16 x 16 or 32 x 8 SERIAL MICROWIRE EEPROM
ST93C06 ST93C06C 256 bit (16 x 16 or 32 x 8) SERIAL MICROWIRE EEPROM NOT FOR NEW DESIGN 1 MILLION ERASE/WRITE CYCLES, with 40 YEARS DATA RETENTION DU.