The AT24HC02B-PU is an EEPROM Memory manufactured by Microchip. It is a 2Kbit Serial EEPROM with a 2-wire interface. This memory device functions by using a 2-wire bus and has a write-protect feature that makes the device write-protected after a single-byte write command. The AT24HC02B-PU has a supply voltage of 1.8V to 5.5V and features a Schmitt Trigger Inputs to ensure glitch-free operation. The device is packaged in a 8-pin SOP package and is RoHS compliant. The Endurance/Data Retention is at least 1 million write cycles, at least 10 years data retention, and 10,000 to 1,000,000 ESD cycles depending on the package and voltage. This device is ideal for the storage of small amounts of data and provides the user with fast and reliable access times.