Micro wire protocol, microwire sensor, eeprom protocol, 12v wire connectors

 93LC46 Series 1 Kbit (64 x 16) 5.5 V Microwire Compatible Serial EEPROM - SOIC-8

https://www.futureelectronics.com/p/semiconductors--memory--RAM--eeprom--micro-wire-interface-protocol/93lc46bt-i-sn-microchip-3631223