The HT12D Decoder ICs are series of CMOS LSIs for Remote Control system applications. For proper operation a pair of encoder/decoder with the same number of address and data format should be selected (HT12E is paired with HT12D). The Decoder receive the serial address and data, transmitted by a carrier using an RF transmission medium and gives output to the output pins after processing the data.

HT12D  Specifications:

• Operating Voltage : 2.4V ~ 12V
• Easy Interface with and RF or an Infrared transmission medium
• Secure and robust protocol
• 18-pin DIP (Dual Inline Package) & 20 pin SOP (Small Outline Package) 
• Low Standby Current : 0.1uA (typ.) at VDD=5V
• Low Power and High Noise Immunity