1 Kbit EEPROM on the I²C bus — what to know before placing it
The STMicroelectronics M24C01-RMN6P is a 1 Kbit serial EEPROM organized as 128 x 8 bits, accessed over an I²C interface running at up to 400 kHz. The 900 ns access time is the random-read cycle; sequential reads run at the bus clock. Temperature grade is industrial: -40°C to 85°C. The 8-SOIC package is a common footprint.
Write-cycle timing matters for calibration data
That is the internal programming time — the bus is held busy via ACK polling until the write completes. For storing calibration constants at power-up, budget 5 ms per byte or page write; for bulk writes, a page-write sequence reduces overhead.