128Kbit I2C EEPROM for parameter storage
The 24AA128T-I/SN is a 128Kbit non-volatile EEPROM organized as 16K x 8 bits, accessed via an I2C interface at up to 400 kHz. Its 1.7V to 5.5V supply range means it works on both 3.3V and 5V rails without a level translator, saving board space and cost. The 900 ns access time and 5 ms write cycle (word or page) are typical for this density class; the real timing constraint in a system is the I2C bus speed.
Industrial temperature and 8-SOIC package
The 8-SOIC (0.154", 3.90 mm width) package is a common footprint; the supplier device package is 8-SOIC, surface-mount, compatible with standard SOIC-8 land patterns.
ROHS3 compliant, which simplifies compliance for EU and global markets.