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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. HT12D Datasheet, HT12D Holtek Decoder Datasheet, buy HT12D Decoder IC.

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Arduino based GPS receiver. Can be used in Home automation for short range remote switching Safety systems like Burglar alarm system, Smoke or Fire alarm system etc. 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. The IC is should be powered by 5V pin 18 and the ground pin pin 9 is grounded. Interface GPS with Arduino.

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

TL — Programmable Reference Voltage. It is very important that your Decoder should have the same address of that of the encoder.

The IC has a built in oscillator. Interface SD Card with Arduino. This pin will datasneet high when a data is received. Choosing Motor For Robots. Virgin Galactic — Commercial Space Flight.

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HT12D RF Decoder IC Pinout, Details, Equivalent & Datasheet

The data on 4 bit latch type output pins remain unchanged until new is received. These are the 8-bit address bits, which is used to protect catasheet data. It is mainly provided to interface RF and infrared circuits. This oscillator can be used by connecting these two pins through a 1M Resistor.

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

HT12D Datasheet

To know how a 4-bit data can be encoded and then dataeheet to the input pin of this Datasheett, we have to understand the working of the HT12E Encoder IC which is given here. What is Web Browser. The Encoded 12 bit output data obtained from HT12E has to be given here. If you want security you can connect any of the 8 pins to 5V to make it high. They are paired with 2 12 series of encoders.

HT12D Decoder IC

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. So if you are working on a project which has to transmit adtasheet 4-bit data from one end to other either by wire or wireless then this IC pair will be best suited for you. If any valid data is received they datasgeet be obtained from these four pins.

Connected to the Ground of circuit. The input data code is decoded when no error or unmatched codes are found. 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. Choosing Battery for Robots. HT12D is a decoder ib circuit that belongs to 2 12 series of decoders. These two ICs together form an Encoder and Decoder pair. It is not mandatory to use it.


We should set the bits in same pattern dayasheet Encoder and Decoder IC to pair them. This series of decoders are mainly used for remote control system applications, like burglar alarm, car door controller, security system etc. 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. The serial input data is compared with the local addresses three times continuously. A valid transmission in indicated by a high signal at VT pin.

For decoding a data the IC will requires an oscillatorluckily this IC has one in-built. Supply voltage; 5V 2. SPI Module of Arduino. Skip to main content. In simple terms, HT12D converts the serial input into parallel outputs.

In the above circuit I have set the 8-bit dataeheet data as 0b, by connecting all address pins to ground. Valid transmission; active high. Submitted by admin on 27 October