HT12E is a series encoder IC (Integrated Circuit) for remote control applications. It is commonly used for radio frequency (RF) applications. By using the. HT12E Encoder IC can be used only with its pair HT12D. These two ICs together form an Encoder and Decoder pair. The HT12E Encoder IC starts working by giving enable signal to the Transmission Enable pin. The 4-word data will be encoded until the TE pin.

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HT12E is an encoder integrated circuit of 2 12 series of encoders. The above diagram oc the practical set up of the HT12E encoder IC for better understanding on the working.

HT12E begins a 4-word transmission cycle upon receipt of a transmission enable. Gunasekaran, Am not sure about what you are asking. But pins AD8-AD11 are not address pins, so we have only 8 pins for address A0-A7, which can provide only different addresses, so this IC is not good for production? This oscillator can be used by connecting these two pins through a 1M Resistor.

The following two tabs change content below. Can be used in Home automation for short range remote switching Safety systems like Burglar alarm system, Smoke or Fire alarm system etc. Quote and Order boards in minutes on: Interface SD Card with Arduino.

HT12E Encoder IC Pin Diagram, Uses, Equivalents & Datasheet

It is very important that your Decoder should also have this same address for them to talk to each other. Kindly repost your question. They can also be connected iv switches to manually send and receive data.


The primary function of HT12E is to encode a bit and send it out through the output pin. Thank you for the reply and clarification. TL — Programmable Reference Voltage. So out of hr12e bits 8-bits will be used to set address and the remaining 4-bit will be used to transmit data.

Can range from 2. In ht12d decoder section, i am changing the address by giving delay. Where are the input pins on the ic I would like to connect a potentiometer to the input on the ic for rc car. Latest posts by Frank Donald see all. It encodes the 12 bit parallel data into serial for transmission through an RF transmitter. SPI Module of Arduino.

The IC is has a wide range of operating voltage from 2. Dear Frank Thank you for your reply. For decoding a data the Hr12e will requires an oscillator, luckily this IC has one in-built.

This data should be sent to the HT12D for decoding, it can ut12e be sent directly through a wire or by using a wireless medium like RF or IR. SSS, As per the datasheet you need that resistor to kick start the internal oscillator in the chip which in turn feeds clock pulse to data transmission.


Choosing Battery for Robots. ULN was a transistor array IC used for driving high power devices.

HT12E Encoder IC

Hii Frank, I am interfacing 4 encoder with different address configuration. This high-density System-in-Package SiP integrates controller, power switches, and support components. Unk, Your address should be unique and only know to your receiver end to avoid other source signal interference. Hope it is clear now. Connected to the Ground ht21e circuit.

There is no use of that IC here. HT12E is capable of operating in a wide Voltage range from 2.

However if you need to have more address combinations hht12e you might want to look for other yt12e pair available in the market. 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.

After receiving a low signal the HT12E starts the transmission of 4 data bits as shown in the timing diagram above. Ht12d GPS with Arduino. Using the address pins we can provide 8 bit security code for secured data transmission between the encoder and the decoder.

Thank you for your reply. We should set the bits in same pattern on Encoder and Decoder IC to pair them.