The 24AA025T-I/ST is an integrated circuit (IC) from Microchip that functions as a serial EEPROM memory device. The IC has a 2-Wire Serial Interface, and utilizes a low-voltage interface between low-voltage and standard-voltage environments. It has a memory capacity of 256 bytes and data is stored in 8-bit registers. The IC operates with a supply voltage range of 2.5V to 5.5V and features a clock frequency of up to 1MHz. Standard features include a cascadable architecture, sequential read access, and write capability. In addition, a write protect pin provides hardware data protection. The IC also features a self-timed write cycle with an internal write cycle counter. The IC is 8-pin package and operates in temperatures from -40 to 85°C.