HT12D is a series decoder IC for remote control applications manufactured by Holtek. It is commonly used for radio frequency (RF) applications. Download. HT12D. 8. 4. L. Ö. RC oscillator. DIN active ²Hi². 18DIP, 20SOP. HT12F. 0 Holtek¢s series of encoders (refer to the encoder/de- . C o n tro l L o g ic The information appearing in this Data Sheet is believed to be accurate at the . HT12DDIP Ic-remote Control Decoder Features. Operating voltage: V~12V Low power and high noise immunity CMOS technology Low standby current.

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In the above circuit I have set the 8-bit address data as 0b, by connecting all address pins to ground. 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. These are the 8-bit address bits, which is used to protect your data.

We should set the bits in same pattern on Encoder and Decoder IC to pair them. 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 decoeer to ground. If you want security you can connect any of the 8 pins to 5V to make it high.

HT12D/HT12F – Product Details – Holtek

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Easy Interface with and RF or an Infrared transmission medium. Interface SD Card with Arduino. SPI Module of Arduino. Arduino based Hg12d receiver. The IC is should be powered by 5V pin 18 and the ground pin pin 9 is grounded.


The IC has a built in oscillator. In simple terms, HT12D converts the serial input into parallel th12d. Found this item with same quality and at a lower price but prefer to buy from robokits. It decodes the serial addresses and data received by, say, an RF receiver, into parallel data and sends them to output data pins.

These two ICs together form an Encoder and Decoder pair. Skip to main content. Easy to Use, Versatile Robotics Kits This oscillator can be used by eatasheet these two pins through a 1M Resistor.

A valid transmission in indicated by a high signal at VT pin. 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. They are paired with 2 12 series of encoders. Virgin Galactic — Commercial Space Flight. For decoding a data the IC will requires an oscillatorluckily this IC has one in-built. It is not mandatory to use it. If any valid data is received they can be obtained from these four pins. They are capable of Encoding 12 bit of information which consists of N address bits and N data bits.

So out of the bits 8-bits will be used to set address and the remaining 4-bit will be used to transmit data.

TL — Programmable Reference Voltage. The input data code is decoded when no error or unmatched codes are id. Photograph just for reference. Full Name Email Address.


This high-density System-in-Package SiP integrates controller, power switches, and support components. Thanks a lot for helping us to maintain competitive prices. Connected to the Ground of circuit. We will notify you the result by email.

Datashfet by admin on 27 October Interface GPS with Arduino. Valid transmission; active high. Can be used in Home automation for short range remote switching Safety systems like Burglar alarm system, Smoke or Fire alarm system etc.

It is mainly provided to interface RF and infrared circuits.

Be the first to write a review. Actual product may vary from the product photograph displayed above. This ICs are paired with each other. Buy 15 or more pieces to get Free Shipping Option Availability: The Encoded 12 bit output data obtained from HT12E has to be given here. 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.

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HT12D Decoder IC

To know how a 4-bit datashfet can be encoded and then send to the input pin of this IC, we have to understand the working of the HT12E Encoder IC which is given here. 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. HT12D is a decoder integrated circuit that belongs to 2 12 series of decoders.