Single-wire EEPROM for pin-constrained boards
The Microchip 11LC020T-I/MNY is a 2Kbit serial EEPROM using a Single Wire interface, meaning it communicates over a single I/O pin plus ground. This frees up GPIO on microcontrollers where every pin counts — think sensor calibration storage, configuration registers in a motor drive, or parameter logging in a field instrument.
What the 100 kHz clock and 5 ms write cycle mean for your BOM
The 100 kHz clock rate is modest — fine for infrequent reads like loading configuration at boot or logging a fault code. The 5 ms write cycle per word or page means a full 256-byte array rewrite takes about 1.3 seconds worst-case. That is acceptable for non-volatile parameter storage updated once per power cycle, but not for streaming data logging. The 256 x 8 organization (2Kbit) is sized for a few dozen calibration constants or a serial number block.
Package and footprint: 8-TDFN (2x3 mm)
The 8-WFDFN exposed pad package (supplier device package 8-TDFN, 2x3 mm) is a small, low-profile surface-mount package suited for dense PCBs.
Microchip lists the 11LC020T-I/MNY as Active product status. For a BOM line this means no last-time-buy pressure and normal lead times through distribution. The part is ROHS3 compliant.