The IC HT12D can be used only with its pair HT12E. These two ICs together form an Encoder and Decoder pair. They are 12-bit Encoders/Decoders, meaning they can transmit 12-bit a data among them.
Applications
Used to convert Parallel 4-bit data to series data
Highly useful in wireless communication projects involving RF or IR
Remote controlled systems like garage doors, Car alarm system, Car door controls etc.
Can be used in Home automation for short range remote switching
Safety systems like Burglar alarm system, Smoke or Fire alarm system etc..
Features
12-bit Decoder IC to be used with HT12E
Decoded data has 4 Data bits and 8 Address bits (8+4=12-bits)
Commonly used for RF and IR wireless transmission
Operating Voltage 5V
Low stand by current of 0.1uA at Vcc=”5V
Available in 16-pin DIP, 20-pin SOP
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