HT12D DECODER DATASHEET PDF
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. For proper operation, a pair of encoder/decoder with the same number of Of this series, the HT12D is arranged to provide 8 address bits and 4 data bits, and. 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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It is mainly provided to interface RF and infrared circuits. The Encoded 12 bit datasheeet data obtained from HT12E has to be given here. These four pins are used to send data, the data encoded here will be decoded on HT12D IC sharing the same address bits. This pin will go high when a data is received. Choosing Motor For Robots.
In this image I have made all four data bits as zero lowwhen this is decoded we will get the same kind of bits on the output side of HT12D, similarly we can make any changes on these 4-bits and they will be reflected on the output side of the HT12D decoder IC.
The Decoder receive the serial address and data from its corresponding decoder, transmitted by a carrier using an RF transmission medium and gives output to the output pins after processing the data.
Can be used in Home automation for short range remote switching Safety systems like Burglar alarm system, Smoke or Fire alarm system ht12. In the above circuit I have set the 8-bit address data as 0b, by connecting all address pins to ground. This ICs are paired with each other. Virgin Galactic — Commercial Space Flight.
These are the 8-bit address bits, which is used to protect your data. TL — Programmable Reference Voltage. Supply voltage; 5V 2. Connected to the Ground of circuit.
HT12D/HT12F – Product Details – Holtek
Skip to main content. For decoding a data the IC will requires an oscillatorluckily this IC has one in-built.
This pin powers the IC should use only 5V. The IC has a built in oscillator. HT12D is capable of decoding 12 bits, of datahseet 8 are address bits and 4 are data bits.
A basic connection diagram for the HT12E IC is shown below In the above circuit I have set the 8-bit address data as 0b, by connecting all datassheet pins to ground. 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. The input data code dztasheet decoded when no error or unmatched codes are found. Photograph just for reference.
It decodes the serial addresses and data received by, say, an RF receiver, into parallel data and sends them to output data pins.
It is very important that your Decoder should also have this same address for them to talk to each other. We should set the bits in same pattern on Encoder and Decoder IC to pair them. Full Name Email Address.
HT12D Decoder IC
You can know to set up the HT12D after this from here. The 4-bit data that has to be sent has to be given to the pins AD0 to AD1 and an address of 8-bit has to be set using the pins A0 to A7. Mercury ball tilt switch 5mm dia.
Be the first to write a review. The serial input data is compared with the local addresses three times continuously. The IC is should be powered by 5V pin 18 and the ground satasheet pin 9 is grounded. In simple terms, HT12D converts the serial input into parallel outputs. These are the 8-bit address bits, which is used to protect your data.