HT12B Datasheet, Holtek

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* Operating voltage:
  – 2.4V~5V for the HT12A/B/C
  – 2.4V~12V for the HT12E/EA Low power and high noise immunity CMO.

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* Burglar alarm system Smoke and fire alarm system Garage door controllers Car door controllers .

The 2 12 encoders are a series of CMOS LSIs for remote control system applications. They are capable of encoding information which consists of N address bits and 12
  –N data bits. Each address/data input can be set to one of the two log.