HT12E Datasheet PDF

Holtek Semiconductor HT12E

the HT12E · Low power and high noise immunity CMOS technology · Low standby current: 0.1mA (typ.) at VDD=5V · HT12A with a 38kHz carrier for infrared transmission medium · Minimum transmission word - Four words for the HT12E - One word for the HT12A · Built-in oscillator needs only 5% resistor · Data code has positive polarity · Minimal external components · Pair with Holtek¢s 212 series of decoders · 20-pin SOP package Applications · Burglar alarm system · Smoke and fire alarm system · Garage door controllers · Car door controllers · Car alarm system · Security system · Cordless telephones ·... 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 logic states.