The Microchip Technology Inc. 93XX66A/B/C devices are 4Kbit low-voltage serial Electrically Erasable PROMs (EEPROM). These devices are ideal for low-power, nonvolatile memory applications. They are available in various packages including PDIP, SOIC, MSOP, SOT-23, DFN/TDFN, and TSSOP, all with a Matte Tin finish. The 93AA66A devices offer dedicated 8-bit communication, while the 93XX66B devices provide dedicated 16-bit communication.