93LC46AX/BX 1K-bit, low voltage serial Electrically Erasable PROMs with features of single supply with operation down to 2.5V, low power CMOS technology, 128 x 8 bit organization (93LC46A) or 64 x 16 bit organization (93LC46B), self-timed ERASE and WRITE cycles (including auto-erase), automatic ERAL before WRAL, power on/off data protection circuitry, industry standard 3-wire serial interface, device status signal during ERASE/WRITE cycles, sequential READ function, 1,000,000 E/W cycles guaranteed, data retention > 200 years, 8-pin PDIP/SOIC and 8-pin TSSOP packages