16 Kbit I²C EEPROM for parameter storage and calibration data
The ROHM BR24L16F-WE2 is a 16Kbit serial EEPROM organized as 2K x 8 bits, accessed through an I²C interface running at up to 400 kHz.
Supply voltage and interface compatibility
The 1.8V to 5.5V supply range means this part works with modern low-voltage MCUs (1.8V) and legacy 5V buses without a level shifter. The I²C interface at 400 kHz is backward-compatible with 100 kHz standard-mode controllers; no special timing tweaks needed for mixed-speed buses.
Housed in an 8-SOIC package (4.40mm body width, 0.173" pitch), this is a rework-friendly footprint. The 8-SOP supplier device package is the same mechanical outline, so footprint libraries for either name work.
Write cycle time and endurance
The write cycle time is 5ms per word or page, typical for I²C EEPROMs of this density. For firmware updates or parameter logging, budget 5ms per write operation; the page write mode reduces total time when writing multiple bytes sequentially. No endurance cycle count is listed in the brief, but ROHM's standard EEPROMs typically support 1 million write cycles — verify against your application's write frequency.