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.

Author: Kigat Tatilar
Country: Guadeloupe
Language: English (Spanish)
Genre: Marketing
Published (Last): 1 October 2005
Pages: 66
PDF File Size: 8.18 Mb
ePub File Size: 9.27 Mb
ISBN: 507-4-34620-877-4
Downloads: 61654
Price: Free* [*Free Regsitration Required]
Uploader: Nikor

Now first of all let me acquaint you about these two integrated circuits: The data on 4 bit latch type output pins remain unchanged hf12d new is received. The IC has a built in oscillator. I am now going to tell you about to control a certain robot wirelessly rather than using wires.

Valid transmission; active high. Gone are the days when we used to use wires to datasheef two devices to establish a communication path. After one complete cycle of data transfer the pin TE goes in high impedance state, thus indicating 1 cycle of data transfer. Can be used in Home automation for short range remote switching Safety systems like Burglar alarm system, Hht12d or Fire alarm system etc.

It is not mandatory to use it.

HT12D/HT12F – Product Details – Holtek

Dafasheet — Programmable Reference Voltage. It decodes the serial addresses and data received by, say, an RF receiver, into parallel data and sends them to output data pins.


This IC has a total of 18 pinsnine on either sides: HT12D is capable of decoding 12 bits, of which 8 are address bits and 4 are data bits. The input data code is decoded when no error or unmatched codes are found.

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. The Encoded 12 bit output data obtained from HT12E has to be given here.

This pin outputs the parallel data serially. At low signal data is transferred via antenna and received by Receiver IC which then decodes it to original parallel data.

It is very important that your Decoder should have the same address of that of the encoder. This series of decoders are mainly used for remote control system applications, like burglar alarm, car door controller, security system etc. If datashwet want security you can connect any of the 8 pins to 5V to make it high.

Skip to main content. In the above circuit I have set the 8-bit address dwtasheet as 0b, by connecting all address pins to ground.

They can also be connected to LED to physically view the received data. The serial input data is compared with the local addresses three times continuously. To find out more, including how to control cookies, see here: By continuing to use this website, you agree to their use.


HT12D is a decoder integrated circuit that belongs to 2 12 series of decoders. This oscillator can be used by connecting these two pins through a 1M Resistor. This pin will go high when a data is received. Skip to content Gone are the days when we used to use wires to connect two devices to establish a communication path.

These two ICs together form an Encoder and Decoder pair. Choosing Battery for Robots.

HT12D Decoder IC | HT12D Datasheet | Pin Diagram

Whenever an active datasueet 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. SPI Module of Arduino. This is an CMOS logic integrated circuit encoder. It is mainly provided to interface RF and infrared circuits.

HT12D Decoder IC

An LED can also be connected across this terminal to indicate output. This pin powers the IC should use only 5V. Virgin Galactic — Commercial Space Flight. So out of the bits 8-bits will be used to set address and the remaining 4-bit will be used to transmit data.