Features
 Operating voltage

2.4V~5V for the HT12A

2.4V~12V for the HT12E
 Low power and high noise immunity CMOS
technology
 Low standby current: 0.1A (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
 HT12A/E: 18-pin DIP/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
 Other remote control systems