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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HT12D Decoder IC

We should set the bits in same pattern on Encoder and Decoder IC to pair them. These pins are generally shorted by a resistor.

It is not mandatory to use it. Interface SD Card with Arduino. To find out more, including how to control cookies, see here: Skip to main content.

HT12D RF Decoder IC Pinout, Details, Equivalent & Datasheet

What is Web Browser. The input data code is decoded when no error or unmatched codes are found. Gone are the days when we used to use wires to connect two devices to establish a communication path. Basically found in applications of remote control systems.

The data on 4 bit latch type output pins remain unchanged until new is received. This is an CMOS logic integrated circuit encoder.


If you want security you can connect any of the 8 pins to 5V to make it high. Submitted by admin on 27 October It is mainly provided to interface RF and infrared circuits. The IC is should be powered by 5V pin 18 and the ground pin pin 9 is grounded.

In simple terms, HT12D converts the serial input into parallel outputs. HT12D is a decoder integrated circuit that belongs to 2 12 series of decoders. The serial input data is compared with the local addresses three times continuously.

This pin will go high when a data is received. Generally a resistor of value 51 KOhms can be used. A valid transmission in indicated by a high signal at VT ht12x. 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.

HT12D/HT12F – Product Details – Holtek

This pin powers the IC should use only 5V. TL — Programmable Reference Voltage. Choosing Battery for Robots. If any valid data is received they can be obtained from these four pins. 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 oscillator can be used by connecting these two pins through a 1M 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. Valid transmission; active high. These are the 8-bit address bits, which is used to protect your data.

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. These two ICs together form an Encoder and Decoder pair.

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. Thus this helps in setting up oscillations in the IC. In additional to itit also has 8 address lines which can generally be grounded along with the pin number 9. This high-density System-in-Package SiP integrates controller, power switches, and support components.

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