The CAT24C16WI-GT3 is an I2C serial EEPROM (electrically erasable programmable read-only memory) from ON Semiconductor. It has a capacity of 16K bits spread across 128 x 8-bit registers, and offers write operations of up to 1K bytes and read operations of up to 256 bytes. This EEPROM has a built in 5.5V logic voltage regulator and is in a lead (Pb) free 8-pin PDIP & SOIC packages. It features a low power consumption, high speed operation, and a wide temperature range. It is suitable for applications such as I2C serial communication, system and process control, switch settings, data storage, and intelligent sensor applications.