Microchip AT24CS01-STUM-T, 1kbit EEPROM Memory Chip, 550ns 5-Pin SOT-23-5 Serial-2 Wire, Serial-I2C

The Microchip AT24CS01 series EEPROM is I²C compatible (2-wire) 1Kbit serial EEPROM with a unique, factory programmed 128-bit serial number. The device is optimized for use in many industrial and commercial applications where low‑power and low‑voltage operation are essential.

Industrial temperature range is -40°C to +85°C
Schmitt triggers, filtered inputs for noise suppression
Write‑protect pin for hardware data protection
8-Byte Page Write Mode
Random and sequential read modes
Bidirectional data transfer protocol.