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HT12D 2 12 Series of Decoders Features. Operating voltage: V~12V Low power and high noise immunity CMOS Built-in oscillator needs only 5% resistor. For proper operation, a pair of encoder/decoder with the same number of Of this series, the HT12D is arranged to provide 8 address bits and 4 data bits, and. IC HT12D can be used only with its pair HT12E. These two ICs together form an Encoder and Decoder pair. They are bit.

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Found this item with same quality and at a lower price but prefer to buy from robokits. Submitted by admin on 30 October SPI Module of Arduino. The input data code is decoded when no error or unmatched codes are found.

HT12E Encoder IC Pin Diagram, Uses, Equivalents & Datasheet

Connected to the Ground of circuit. This ICs are paired with each other.

The IC is should be datashewt by 5V pin 18 and the ground pin pin 9 is grounded. It is very important that your Decoder should have the same address of that of the encoder. The encoded bit can be obtained from the Dout pin pin The Decoder receive the serial address and data from its corresponding decoder, transmitted by a carrier using an RF transmission medium and gives output to the output pins after processing the data. The Encoded 12 bit output data obtained from Dtaasheet has to be given here.


The Encoded 12 bit output data can be obtained from this pin. They are paired with 2 12 series of encoders. Photograph just for ratasheet. HT12D is a decoder integrated circuit that belongs to 2 12 series of decoders. It is mainly provided to interface RF and infrared circuits. Interface SD Card with Arduino.

In this image I have made all four data bits as zero lowwhen this is decoded we will get the same kind of bits on the output side decodfr HT12D, similarly we can make any changes on these 4-bits and they will be reflected on the output side of the HT12D decoder IC. The serial input data is compared with the local addresses three times continuously. If any valid data is received they can be obtained from these four pins.

This data should be sent to the HT12D for decoding, it can either be sent directly through a wire or by using a wireless medium like RF or IR.

HT12D is capable of decoding 12 bits, of which 8 are address bits and 4 are hy12d bits. Actual product may vary from the product photograph displayed above. Can be used in Home automation for short range remote switching Safety systems like Burglar alarm system, Smoke or Fire alarm system etc.


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For decoding a data the IC will requires an oscillator, luckily this IC has one in-built. Buy 15 or more pieces fatasheet get Free Shipping Option Availability: If you want security you can connect any of the 8 pins to 5V to make it high. The IC is has a wide range of operating voltage from 2.

Customers who decoddr this product also purchased It decodes the serial addresses and data received by, say, an RF receiver, into parallel data and sends them to output data pins.

Pull the Transmission Enable pin pin 14 to ground to activate transmission. The primary function of HT12E is to encode a bit and send it out through the output pin.

HT12D Decoder IC

We should set the bits in same pattern on Encoder and Decoder IC to pair them. A valid transmission in indicated by a high signal at VT pin. They can also be connected to switches to manually send and receive data.