The 93AA46BT-I/SN is an EEPROM (Electrically Erasable Programmable Read-Only Memory) device from Microchip. It is used to store data in a non-volatile fashion, meaning that the data remains even when the power to the device is removed. The 93AA46BT-I/SN has 256 x 8-bit memory and is organized as 32 pages of 8 bytes each. The device uses an I²C serial interface for communication and requires an external power supply and clock. Access to the device requires the sending of an appropriate start or write/read sequence. It has a wide range of voltages (1.65 to 5.5 V), and it can operate at temperatures between -40 and 85°C (-40 and 185°F). The 93AA46BT-I/SN is often used in automotive, industrial, and consumer applications.