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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This is an CMOS logic integrated circuit encoder. This site uses cookies. TL — Programmable Reference Voltage.

HT12D RF Decoder IC Pinout, Details, Equivalent & Datasheet

SPI Module of Arduino. What is Web Browser. These pins are generally shorted by a resistor. An LED can also be connected across this terminal to indicate output. 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. 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.

If any valid data is received they can be obtained from these four pins. If you want security you can connect any of the 8 pins to 5V to make it high. Used for interfacing RF circuits generally MegaHz. Submitted by admin on 27 October Generally a resistor of value 51 KOhms can be used. This oscillator can be used by connecting these two pins through a 1M Resistor.


HT12E IC has four bit parallel data inputwhich it then converts to serial data output. At low signal data is transferred via antenna and received by Receiver IC which then decodes it to original parallel data. It is mainly provided to interface RF and infrared circuits. This IC has a total of 18 pinsnine on either sides: Gone are the days when we used to use wires to connect two devices to establish a communication path. Interface SD Card with Arduino. This pin will go high when a data is received.

By continuing to use this website, you agree to their use. 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 17 Valid Transmission VT This pin will go ht12s when a data is received. I dataheet now going to tell you about to control a certain robot wirelessly rather than using wires. The IC has a built in oscillator.

This IC hasmany applications in short range remote controlling. The data on 4 bit latch type output pins remain unchanged until new is received. Interface GPS with Arduino. A valid transmission in indicated by a high signal at VT pin.

HT12D Decoder IC

This series of decoders are mainly used for remote control system applications, like burglar alarm, car door controller, security system etc. 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 Encoder and Decoder pair. The serial input data is compared with the local addresses three times continuously.


Supply voltage; 5V 2. After one ddatasheet cycle of data transfer the pin TE goes in high impedance state, thus indicating 1 cycle of data transfer.

The Encoded 12 bit output data obtained from HT12E has to be given here. Choosing Motor For Robots. Connected to the Ground of circuit. They can also be connected to LED to physically view the received data.

This high-density System-in-Package SiP integrates controller, power switches, and support components. Arduino based GPS receiver.

In the above circuit I have set the 8-bit address data as 0b, by connecting all address pins to ground. The input data code is decoded datashwet no error or unmatched codes are found.

ht12e ht12d datasheet – ht12e ht12d datasheet

This pin powers the IC should use only 5V. It decodes the serial addresses and data received by, say, an RF receiver, into parallel data and sends them to output data pins. Now first of all let dataxheet acquaint you about these two integrated circuits: In simple terms, HT12D converts the serial input into parallel outputs. It is not mandatory to use it.

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In additional to itit also has 8 address lines which can generally be grounded along with the pin number 9. Thus this helps in setting up oscillations in the IC. This pin outputs the parallel data serially.

Valid transmission; active high.

Last modified: March 24, 2020