Holtek ht12d 12f remote control decoders holtek ht12d remote control decoder 2 4v to 12v supply voltage 2ua standby current 150khz system frequency 200ua operating current 1 6ma output drive current 20 to 75 c 18 dip case these 212 series cmos lsi remote control decoders are designed to operate with the matching ht12a and ht12e encoders the decoders receive serial addresses and data from a programmed 212 encoder via a carrier using a rf or infrared transmission medium burglar alar