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
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Used to convert Parallel 4-bit data to series data
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Highly useful in wireless communication projects involving RF or IR
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Remote controlled systems like garage doors, Car alarm system, Car door controls etc.
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Can be used in Home automation for short range remote switching
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Safety systems like Burglar alarm system, Smoke or Fire alarm system etc..
Features
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12-bit Decoder IC to be used with HT12E
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Decoded data has 4 Data bits and 8 Address bits (8+4=12-bits)
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Commonly used for RF and IR wireless transmission
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Operating Voltage 5V
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Low stand by current of 0.1uA at Vcc=”5V
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Available in 16-pin DIP, 20-pin SOP
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