In addition, this encoder ic is easy to implement and simple to use. Type ht12d 8 4 l rc oscillator din active hi 18dip, 20sop ht12f 12 0 rc oscillator din active hi 18dip, 20sop notes. They are paired with series of decoders for use in. Datasheet of ht12e pdf the content and s of the attached material are the property of its owner. Fri, 12 oct gmt ht12e encoder ic ht12e datasheet pdf ht12e is an encoder integrated circuit of. Ht12d decoder ht12e ic ic ht12e doorbell 16 tones working diagram and operation of rf encoder ht12e ht12d ht12e pin diagram encoder ht12e melody generator ic text. Ic ht12d datasheet pdf ht12d is a series decoder ic for remote control applications manufactured by holtek. The ic is should be powered by 5v pin 18 and the ground pin pin 9 is grounded. The encoded 12 bit output data can be obtained from this pin. The capability to select a te trigger on the ht12e or a data trigger on the ht12a further enhances the application flexibility of the 2 12 series of encoders. They are capable of encoding information which consists of n address bits and 12n data bits.
Ht12e datasheet pdf ht12e encoder ic can be used only with its pair ht12d. It is mainly used datasheet interfacing rf and infrared circuits. Rf based wireless remote using rxtx modules elementzonline. Ht12e encoder ic can be used only with its pair ht12d. Ht12e encoder ic for remote control systems datasheet. These four pins are used to send data, the data encoded here will be decoded on ht12d ic sharing the same address bits. Ht12d is a 212 series decoder ic for remote control applications manufactured by holtek. They are 12bit encodersdecoders, meaning they can transmit 12bit a data. Ht12aht12e 2 series of encoders electronics source.
Of this series, the ht12d is arranged to provide 8 address bits and 4 data bits, and ht12f is used to decode 12 bits of address information. 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 ht112d side of ht12d, similarly we can make any changes on these 4bits and they will be reflected on the output side of the ht12d decoder ic. Ht12d datasheet, ht12d datasheets, ht12d pdf, ht12d circuit. Ht12e datasheet, ht12e pdf, ht12e data sheet, ht12e manual, ht12e pdf, ht12e. This data should be sent to the ht12d for decoding, it can either be sent directly through a wire or by using a wireless medium like rf or ir. It is commonly used for radio frequency rf wireless applications. Ht12d is a 2 12 series decoder ic integrated circuit for remote control applications manufactured by holtek. Ht12d decoder ic for remote control systems datasheet. Holtek series of encoders,alldatasheet, datasheet, datasheet search site for electronic components. Ht12e is a 2 12 series encoder ic integrated circuit for remote control applications. Asignement of receiver direction, it mean it can changing of adresses for comunication individualy if is. Ht12e rf encoder ic pinout, application, examples, and. Ht12e datasheet, ht12e datasheets, ht12e pdf, ht12e circuit. Ht12d simply converts serial data to its input may be received through rf receiver to 12 bit parallel data.
Complete technical details can be found at the ht12d datasheet given at the end of this page. Holtek, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Ht12d is a decoder integrated circuit that belongs to 212 series of decoders. The 4bit data that is received can be obtained on pins ad0 to ad1 and an yt12d of 8bit has to be set using the pins a0 to a7. The module itself cannot work on its own as it required some kind of encoding before being transmitter and decoding after being received. These two ics together form an encoder and decoder pair. Rf based wireless remote using rxtx modules 434mhz.
Oscillator trigger datasheet search, datasheets, datasheet search site for electronic components and semiconductors, integrated circuits, diodes and other semiconductors. That is to say, the din should be kept low if there is no signal input. It is a 12bit decoder that uses 8bits for address and 4 for data. Pdf icon ht12e is an encoder integrated circuit of series of encoders. V12v low power and high noise immunity cmos builtin oscillator needs only 5% resistor. It is commonly used for radio frequency rf applications. Functional description operation the 212 series of encoders begin a 4word transmission cycle upon receipt of a transmission enable te for the ht12e or d8d11 for the ht12a, active low. The rf transmitter with and a good antenna can sent data up to 500 ft outdoor and no osbtacles the operation voltage of rf transmitter is. Each addressdata input can be set to one of the two logic states.
Ht12aht12e212 series of encodersselection tablefunction addressno. The simplest way to use it is with the ht12e encoder and ht12d decoder ic. Rf and ir modules can interface with microcontrollers directly which requires a little bit complex programming. By using the paired ht12e encoder and ht12d decoder we can easily transmit and receive 12 bits of parallel data serially. Ht12e is an encoder ic for rf and ir modules mostly. Ht12dht12f 212 series of decoders selection table function address no. Ht12d datasheet in pdf ht12d 2 12 series of decoders features. Ht12e is a series encoder ic integrated circuit for remote control applications. Ht12e datasheet, ht12e holtek encoder datasheet, buy ht12e encoder ic. This cycle will repeat itself as long as the transmission enable te or d8d11 is.
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