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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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.

Skip to main content. Valid transmission; active high. This high-density System-in-Package SiP integrates controller, power switches, and support components.

HT12D/HT12F – Product Details – Holtek

After one complete cycle of data transfer the pin TE goes in high impedance state, thus indicating 1 cycle of data transfer. The IC is should be powered by 5V pin 18 and the ground pin pin 9 is grounded. These two ICs together form an Encoder ht12 Decoder pair. So out of the bits 8-bits will be used to set address and the remaining 4-bit will be used to transmit data.


Can be used in Home automation for short range remote switching Safety systems like Burglar alarm system, Smoke or Fire alarm system etc. Now first of all let me acquaint you about these two integrated circuits: They are paired with 2 12 series nt12d encoders.

What is Web Browser. Submitted by admin on 27 October Interface SD Card with Arduino. SPI Module of Arduino.

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. In additional to itit also has 8 address lines which can generally be grounded along with the pin number 9.

This pin powers the IC should use only 5V. To know how a 4-bit data 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. An LED can also be connected across this terminal to indicate output.

The serial input data is compared with the datasneet addresses three times continuously. HT12D is capable of decoding 12 bits, of which 8 are address bits and 4 are data bits. This site uses datasneet. Thus this helps in setting up oscillations in the IC. In simple terms, HT12D converts the serial input into parallel outputs.


It is very important that your Decoder should have the same address of that of the encoder. 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.

Arduino based GPS receiver.

HT12D Decoder IC

The Encoded 12 bit output data obtained from HT12E has to be given here. Gone are the days when we used to use wires to connect two devices to establish a communication path.

Skip to content Gone are the days when we used to use wires to connect two devices to establish a communication path. This pin outputs the parallel data serially.

HT12D Decoder IC | HT12D Datasheet | Pin Diagram

This pin will go high when a data is received. TL — Programmable Reference Voltage. By continuing to use this website, you agree to their use. Connected to the Ground of circuit.