This 212 series CMOS LSI remote control decoder from Holtek is designed to operate with the matching HT12A encoder. The decoder receives serial addresses and data from a programmed 212 encoder via a carrier using a RF or infrared transmission medium.

• HT12D is designed to match encoder HT12A
• Supplied in DIP-18 package

A CMOS LSI encoder from Holtek designed for remote control system applications. It is capable of encoding information which consists of 8-address bits and either 4 further address/data bits.

Each address/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.

• Supplied in a DIL-18 package