By using the paired HT12E encoder and HT12D decoder we can transmit 12 bits of parallel data serially. HT12D simply converts serial data to its input (may be. IC HT12D can be used only with its pair HT12E. These two ICs together form an Encoder and Decoder pair. They are bit. The HT12E Encoder ICs are series of CMOS LSIs for Remote Control system applications. They are capable of Encoding 12 bit of information which consists of 8.

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To know how a 4-bit data can be encoded and then send to the input pin of this H12d, we have to understand the working of the HT12E Encoder IC which is given here. Be the first to write a review. Choosing Motor For Robots.

The IC has a built in oscillator. Connected to the Ground of circuit.

HT12D Decoder IC

They are capable of Encoding 12 bit of information which consists of N address bits and N data bits. Buy 15 or more pieces to get Free Shipping Option Availability: So if you are working on a project which has to transmit a 4-bit data from one end to other either by wire or wireless then this Ht12 pair will be best suited for you.

The 4-bit data that is received can be obtained on pins AD0 to AD1 and an address of 8-bit has to be set using encooder pins A0 to A7. It decodes the serial addresses and data received by, say, an RF receiver, into parallel data and sends them to output data pins.

HT12D RF Decoder IC Pinout, Details, Equivalent & Datasheet

Supply voltage; 5V 2. We should set the bits in same pattern on Encoder and Decoder IC to pair them. Valid transmission; active high. 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. Please submit the url of the better price you saw. We will notify you the result by email.


This oscillator can be used by connecting these two pins through a 1M Resistor 17 Valid Transmission VT This pin will go high when a data is received. Interface SD Card with Arduino. The data on 4 bit latch type output pins remain unchanged until new is received.

This series of decoders are mainly used for remote control system applications, like burglar alarm, car door controller, security system etc. It is not mandatory to use it. TB Stepper Motor Driver 4. These are the 8-bit address bits, which is used to protect your data. Actual product may vary from the product photograph displayed above.

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It is very important that your Decoder should have the same address of that of the encoder. A basic circuit diagram for the HT12D IC is shown below In the above circuit I have set the 8-bit address data as 0b, by connecting all address pins to ground. The input data code is decoded when no error or unmatched codes are found.

If any valid data is received they can be obtained from these four pins. If you want security you can connect any of the 8 pins to 5V to make it high.


Mercury ball tilt switch 5mm dia. Submitted by admin on 27 October HT12D is capable of decoding 12 bits, of which 8 are address bits and 4 are data bits.

The serial input data is compared with the local addresses three times continuously. Return and Refund Policy. The Encoded 12 bit output data obtained from HT12E has to be given here. For decoding a data the IC will requires an oscillatorluckily this IC has one in-built.

This oscillator can be used by connecting these two pins through a 1M Resistor. We will lauch an immediate investigation and try our best to beat the price, if it proves to be the same product.

TL — Programmable Reference Voltage. This pin powers the IC should use only 5V. This ICs are paired with each other.

Thanks a lot for helping us to maintain competitive prices. They can also be connected to LED to physically view the received data. These two ICs together form an Encoder and Decoder pair. Easy Interface with and RF or an Infrared transmission medium. In simple terms, HT12D converts the serial ht1d into parallel outputs.

This high-density System-in-Package SiP integrates controller, power switches, and support components. What is Web Browser. Full Name Email Address. HT12D is a decoder integrated circuit that belongs to 2 12 series of decoders. Virgin Galactic — Commercial Space Flight. So out of the bits 8-bits will be used to set address and the remaining 4-bit will be used to transmit data.

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