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

These two ICs together form an Dwtasheet and Decoder pair. It is very important that your Decoder should have the same address of that of the encoder.

We should set the bits in decodfr pattern on Encoder and Decoder IC to pair them. The serial input data is compared with the local addresses three times continuously. They can also be connected to LED to physically view the received data. HT12D is capable of decoding 12 bits, of which 8 are address bits and 4 are data bits.

For decoding a data the IC will requires an oscillatorluckily this IC has one in-built. The Decoder receive the serial address and data from its corresponding decoder, transmitted by a carrier using an Ht21d transmission medium and gives output to the output pins after processing the data.


This series of decoders are mainly used for remote control system applications, like burglar alarm, car door controller, security system etc. Easy Interface with and RF or an Infrared transmission medium. Connected to the Ground of circuit. The IC has dstasheet built in oscillator. The data on 4 bit latch type output pins remain unchanged decoser new is received. 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 the pins A0 to A7.

Choosing Motor For Robots. Customers who bought this product also purchased It is not mandatory to use it. The IC is should be powered by 5V pin 18 and the ground dwcoder pin 9 is grounded.

Thanks a lot for helping us to maintain competitive prices. Can be used in Home automation for short range remote switching Safety systems like Burglar alarm system, Smoke or Fire alarm system etc. This oscillator can be used by connecting these two pins through a 1M Resistor. TL — Programmable Reference Voltage. They are capable of Encoding 12 bit of information which consists of N address bits and N data bits.

This high-density System-in-Package SiP integrates controller, power switches, and support components. Return and Refund Policy.

HT12D Decoder IC | HT12D Datasheet | Pin Diagram

Supply voltage; datashet 2. HT12D is a decoder integrated circuit that belongs to 2 12 series of decoders. Choosing Battery for Robots. A valid transmission in indicated by a high signal at VT pin. We will lauch an immediate investigation and try our best to beat the price, if it proves to be the same product.


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They are paired with 2 12 series of encoders. These are the 8-bit address bits, which is used to protect your data.

Buy 15 or more pieces to get Free Shipping Option Availability: In simple terms, HT12D converts the serial input into parallel outputs. The Encoded 12 bit output data obtained from HT12E has to be given here. Found this item with same quality and at a lower price but prefer to buy from robokits.

HT12D Decoder IC

Photograph just for reference. It is mainly provided to interface RF and infrared circuits. If any valid data is received they can be obtained from these four pins.

A basic circuit diagram for the HT12D IC is shown below In the above circuit I have datasheeet the 8-bit address data as 0b, by connecting all address pins to ground. This ICs are paired with each other. 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.

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