HT12E


Integrated Circuit


HT12E


HT12A/HT12E 2(12) Series of Encoders


The 212 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 ad- dress/data input can be set to one of the two logic states. The programmed addresses/data are transmitted together with the header bits via an RF or an infrared transmission medium upon receipt of a trigger signal. The capability to select a TE trigger on the HT12E or a DATA trigger on the HT12A further enhances the ap- plication flexibility of the 212 series of encoders. The HT12A additionally provides a 38kHz car- rier for infrared systems.

Applications
· Burglar alarm system
· Smoke and fire alarm system
· Garage door controllers
· Car door controllers


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Sketches:

  1. HT12D - HT12E Communicate through wire
  2. HT12D - HT12E Communicate through 433 MHZ RF Wireless Receiver and Transmitter