• No Comments

HT12D is a series decoder IC for remote control applications manufactured by Holtek. It is commonly used for radio frequency (RF) applications. Download. HT12D. 8. 4. L. Ö. RC oscillator DIN active ²Hi² 18 DIP/20 SOP .. The information appearing in this Data Sheet is believed to be accurate at the. HT12DDIP Ic-remote Control Decoder Features. Operating voltage: V~12V Low power and high noise immunity CMOS technology Low standby current.

Author: Tugor Turan
Country: Gambia
Language: English (Spanish)
Genre: Education
Published (Last): 13 October 2013
Pages: 253
PDF File Size: 4.88 Mb
ePub File Size: 7.68 Mb
ISBN: 394-2-87417-561-3
Downloads: 71978
Price: Free* [*Free Regsitration Required]
Uploader: Docage

How to get HT12D to default state?

HT12D Decoder IC

Email Required, but never shown. Easy to Use, Versatile Robotics Kits If that’s a problem with your application you’ll need a way to introduce a delay into VT going low, maybe a simple diode and RC arrangement would do the job but see how this goes for a start.

For decoding a data the IC will requires an oscillatorluckily this IC has one in-built. I want it to go to the default state of all LEDs off whenever transmitter goes out of range or power to it is cut.

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.

Interface SD Card with Arduino. Valid transmission; active high. My problem is that when I press any switch on the transmitter and cut power to the transmitter by holding push switch, the receiver end is still showing a LED output. Virgin Galactic — Commercial Space Flight.


HT12D RF Decoder IC Pinout, Details, Equivalent & Datasheet

To know how a 4-bit data can be encoded and then send to the input pin of datashret IC, we have to understand the working of the HT12E Encoder IC which is given here.

As you want the LEDs to be on when the data outputs are low you’ll also need inverters such as a on the data lines:. Another thing to note is that when I’ve used the Holtek chips in the past sometimes the VT line will ‘flicker’ because of poor communications on occasions. This pin will go high dwtasheet a data is received.

When data is being transmitted continously the VT line will stay high while valid data is being received. Mercury ball tilt switch 5mm dia. Connected to the Ground of circuit. This high-density System-in-Package SiP integrates controller, power switches, and support components. PeterJ 16k 20 42 It is very important that your Decoder should have the same address of that of the encoder.

The input data code is decoded when no error or unmatched codes are found. By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

Sign up or log in Sign up using Google. Full Name Email Address.

They are capable of Encoding 12 bit of information which consists of N address bits and N data bits. Buy 15 or more pieces to get Free Shipping Option Availability: It is mainly provided to interface RF and infrared circuits. Be the first to write a review.

This ICs are paired with each other. We will notify you the result by email. 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.


This datasheft surprise me. There are quite a few ways you could go about it, I’ve just shown an example using basic logic gates that are easy to source and to understand. TB Stepper Motor Driver 4. TL — Programmable Reference Voltage.

SPI Module of Arduino. They don’t show a maximum so maybe it has current limiting, but some further buffering hht12d the data lines is probably in order. If you want security you can connect any of the 8 pins to 5V to make it high.

Actual product may vary from the product photograph displayed above. These two ICs together form an Encoder and Decoder pair. Home Questions Tags Users Unanswered.

HT12D Decoder IC | HT12D Datasheet | Pin Diagram

Supply voltage; 5V 2. Sign up using Facebook. The IC has a built in oscillator. The serial input data is compared with the local addresses three times continuously. HT12D is a decoder ddatasheet circuit that belongs to 2 12 series of decoders. HT12D ht12s capable of decoding 12 bits, of which 8 are address bits and 4 are data bits.

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