The FT24C128A-ESR-B is a 128Kbit Serial CMOS I2C EEPROM memory device manufactured by Fremont Micro Devices. It is housed in an 8-pin Surface-mount Package (SOP-8), and is RoHS Compliant. This device provides high performance storage and memory for a variety of applications, including embedded systems, automotive electronics, and medical and industrial devices. The FT24C128A-ESR-B features an I2C 100kHz-400kHz (Standard Mode/Fast Mode) serial bus interface and boasts features including a low-power idle standby mode and a standby and a write protect mode. This EEPROM device has an Operating Temperatures range of -40 up to +85°C and an endurance of 1 million erase/write cycles and 100 years data retention.