The Microchip 93LC46BT-I/MS is a 4K-bit electrically erasable programmable read-only memory (EEPROM) device with a 2-wire Serial Interface. The device from Microchip is a 8 pin DIP with a serial clock and data bus to communicate with the system microcontroller. It is ideal for low power, low-voltage applications. This device can also be used in digital industrial, medical products and also, embedded systems as it offers excellent ESD/EMI protection along with easy integration and superior endurance. The device has a guaranteed data retention of up to 100 years, and has three specific types of instruction -WRITE, READ, and EWEN.