HT12D. 8. 4. L. Ö. RC oscillator. DIN active ²Hi². 18DIP, 20SOP. HT12F. 0 The information appearing in this Data Sheet is believed to be accurate at the. 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. 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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What is Web Browser. HT12D is a decoder integrated circuit that belongs to 2 12 series of decoders. Choosing Motor For Robots. To find out more, including how to control cookies, see here: The serial input data is compared with the local addresses three times continuously.

Supply voltage; 5V 2. This pin powers the IC should use only 5V.

HT12D Decoder IC

This is an CMOS logic integrated circuit 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.

It is mainly provided to interface RF and infrared circuits. These are the 8-bit address bits, which is used to protect your data. Can be used in Home automation for short range remote switching Safety systems like Burglar alarm system, Smoke or Fire alarm system etc. This series of decoders are mainly used for remote control system applications, like burglar alarm, car door controller, security system etc.

By continuing to use this website, you agree to their use. 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.


HT12D is capable of decoding 12 bits, of which 8 are address bits and 4 are data bits. In the above circuit I have set the 8-bit address data as 0b, by connecting all address pins to ground.

Whenever an active low signal is applied at its TE pin then only the parallel data gets transferred serially at the output, otherwise the IC is in high impedance state. After one complete cycle of data transfer the pin TE goes in high impedance state, dztasheet indicating 1 cycle of data transfer. The IC is should be powered by 5V pin 18 and the ground pin pin 9 is dxtasheet. Arduino based GPS receiver. 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. This site uses cookies.

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 17 Valid Transmission VT This pin will go high when a data is received.

It is very important that your Decoder should have the same address of that of the encoder. HT12E IC has four bit parallel data inputwhich it then converts to serial data output. An LED can also be connected across this terminal to indicate output.

If any valid data is received they can be obtained from these four pins. The input data code is decoded when no error or unmatched codes are found. The data on 4 bit latch type output pins remain unchanged until new is received. They are paired with 2 12 series of encoders. If you want security you can connect any of the 8 pins to 5V to make it high. Now first of all let me acquaint you about these two integrated circuits: Skip to main content.


A valid transmission in indicated by a high signal at VT pin. 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 IC pair will be best suited for you.

The Encoded 12 bit output data obtained from HT12E has to be given here. At low signal data is transferred via antenna and received by Receiver IC which then decodes it to original parallel data. This IC hasmany applications in short range remote controlling. Generally a resistor of value 51 KOhms can be used.

It decodes the serial addresses and data received by, say, an RF receiver, into parallel data and sends them to output data pins. We should set the bits in same pattern on Encoder and Decoder IC to pair them.

This high-density System-in-Package SiP integrates controller, power switches, and support components. Thus this helps in setting up oscillations in the IC.

HT12D Decoder IC | HT12D Datasheet | Pin Diagram

Connected to the Ground of circuit. This oscillator can be used by connecting these two pins through a 1M Resistor. These pins are generally shorted by a resistor. It is not mandatory to use it.

I am now going to tell you about to control a certain robot wirelessly rather than using wires. Submitted by admin on 27 October