IC HT12D can be used only with its pair HT12E. These two ICs together form an Encoder and Decoder pair. They are bit Encoders/Decoders, meaning they. HT12D is a series decoder IC for remote control applications manufactured by Holtek. It is commonly used for radio frequency (RF) applications. Download. Buy HOLTEK HT12D online at Newark element Buy your HT12D from an authorized HOLTEK distributor.

Author: Faekus Tobar
Country: Tanzania
Language: English (Spanish)
Genre: Personal Growth
Published (Last): 28 April 2012
Pages: 364
PDF File Size: 15.33 Mb
ePub File Size: 14.70 Mb
ISBN: 206-1-83528-563-2
Downloads: 21621
Price: Free* [*Free Regsitration Required]
Uploader: Shasho

It has built in oscillator, we need to connect only a small external resistor. 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.

For decoding a data the IC will requires an oscillator, luckily this IC has one in-built. For many yearsour scientists have been thriving to find out new efficient ways to explore the depthness So out of the bits 8-bits will be used to set address and the remaining 4-bit will be used to transmit data.

One of the basic element in every electronic device is the transistor. These 12 bit parallel data is nt12d in to 8 address bits and 4 data bits. HT12D is a decoder integrated circuit that belongs to 2 12 series of decoders. HT12D — Ht12f Diagram. If any valid data is received they can be obtained from these four pins. This oscillator can be used by connecting these two pins through a 1M Resistor.

The received data is checked 3 times for more accuracy.


Top menu About Us Contact. It decodes the serial addresses and data received by, say, an RF receiver, into parallel data and sends them to output data pins. Thus the oscillator will ht12c active when the decoder receives data transmitted by an encoder.

Valid transmission; active high. Skip to main content. They are paired with 2 12 series of encoders.

How IC HT12D works?

If you want security you can connect any of the 8 pins to 5V to make it high. It is commonly used for radio frequency RF wireless applications.

Supply voltage; 5V 2. The serial input data is compared with the local addresses three times continuously.

They can also be connected to LED to physically view the received data. The data on 4 bit latch type output pins remain unchanged until new is received. In simple terms, HT12D converts the serial input into parallel outputs. This pin powers the IC should use only 5V. We should set the bits in same pattern on Encoder and Decoder IC to pair them. Connected to the Ground of circuit. Choosing Battery for Robots.

How IC HT12D works? | JAY Robotics’s Blog

This pin will go high when a data is received. The IC has a built in oscillator. Its power consumption is low and has high immunity against noise. HT12D — Pin Diagram. Using 8 address bits ht12s can provide 8 bit security code for 4 bit data and can be used to address ht12r receivers by using the same transmitter. OrCad is a highly developed and complex software that provides affordable and Choosing Motor For Robots. Contents1 Components Required2 Circuit Diagram2.

HT12D simply converts serial data to its input may be received through RF receiver to 12 bit parallel data. These are the 8-bit address bits, which is used to protect your data. The device starts decoding the input address and data. HT12D is capable of decoding ht122d bits, of which 8 are address bits and 4 are data bits. The primary function of HT12E is to decode the bit that is received by the input pin.

The input data code is decoded when no error or unmatched codes are found. Top menu About Us Advertise. If all matches, data bits are hht12d and output pins D8 — D11 are activated.