The Microchip 24AA01H-I/MS is an 8-pin EEPROM Memory IC, which stands for Electrically Erasable Programmable Read-Only Memory. It has an internally organized 1K x 8-bit memory array and a two-wire I2C-compatible (Inter-Integrated Circuit) serial bus. This part is used for storing data for future retrieval or for permanently storing information that does not need to be changed or updated. It has an extended temperature range of -40°C to +85°C and a write cycle endurance of 1,000,000. The 24AA01H-I/MS supports a data retention of up to 200 years and a write cycle time of 5 ms. It is ideal for small portable information.