256Kbit I²C EEPROM in an 8-MSOP package
The Microchip 24LC256-I/MS is a 256Kbit serial EEPROM organized as 32K x 8 bits, accessed through an I²C interface running at up to 400 kHz. The 8-MSOP package (0.118" body width, 3.00mm width) saves board space while keeping a standard I²C pinout — two address inputs let you place up to eight devices on the same bus without conflict.
The 900 ns access time is within the I²C data setup window at 400 kHz.
Active lifecycle and industrial temperature qualification
The ROHS3 compliance is noted on the label.
Sourcing this part for a BOM line
The 24LC256-I/MS is widely available through independent distribution. For dual-sourcing resilience, the closest functional alternative is the AT24C512C-XHM-B from Microchip Technology, which offers 512Kbit in a similar 8-pin SOIC package with the same I²C interface and 900 ns access time — though the footprint differs slightly (SOIC vs MSOP), so verify the land pattern before substituting.