Description

• 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

Application:

• 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