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    Decoder

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    Jyotirekha Pati
    The HT12D decoder is a CMOS LSI chip used for remote control systems that can interface with RF receivers to create single or multiple channel RF remote controls. It receives serial addresses and data from an HT12E encoder transmitted via RF or IR, compares the input to its local addresses 3 times, and if no errors are found decodes and outputs the data along with a valid transmission indicator. The HT12D can decode up to 12 bits of information with an 8-bit address and 4-bit data configuration.

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    Decoder

    Uploaded by

    Jyotirekha Pati
    44 views2 pages
    The HT12D decoder is a CMOS LSI chip used for remote control systems that can interface with RF receivers to create single or multiple channel RF remote controls. It receives serial addresses and data from an HT12E encoder transmitted via RF or IR, compares the input to its local addresses 3 times, and if no errors are found decodes and outputs the data along with a valid transmission indicator. The HT12D can decode up to 12 bits of information with an 8-bit address and 4-bit data configuration.

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    The HT12D decoder is a CMOS LSI chip used for remote control systems that can interface with RF receivers to create single or multiple channel RF remote controls. It receives serial addresses and data from an HT12E encoder transmitted via RF or IR, compares the input to its local addresses 3 times, and if no errors are found decodes and outputs the data along with a valid transmission indicator. The HT12D can decode up to 12 bits of information with an 8-bit address and 4-bit data configuration.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    44 views2 pages

    Decoder

    Uploaded by

    Jyotirekha Pati
    The HT12D decoder is a CMOS LSI chip used for remote control systems that can interface with RF receivers to create single or multiple channel RF remote controls. It receives serial addresses and data from an HT12E encoder transmitted via RF or IR, compares the input to its local addresses 3 times, and if no errors are found decodes and outputs the data along with a valid transmission indicator. The HT12D can decode up to 12 bits of information with an 8-bit address and 4-bit data configuration.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    of 2

    DECODER(HT12D):-

    The HT12D decoder is a CMOS LSI for remote control system applications. It will

    interface to RF receiver modules to create a secure single or multiple channel RF

    remote control receiver. The decoder receives serial addresses and data from a

    programmed encoder that are transmitted by a carrier using an RF or an IR

    transmission medium. The decoder compares the serial input data three times

    continuously with its local addresses. If no error or unmatched codes are found,

    the input data codes are decoded and then transferred to the output pins. The VT

    pin also goes high to indicate a valid transmission. The HT12D decoder is capable

    of decoding informations that consist of N bits of address and 12-N bits of data.

    The HT12D is arranged to provide 8 address bits and 4 data bits.


    Features:-
     Operating voltage: 2.4V~12V
     Low power and high noise immunity CMOS technology
     Low standby current
     Capable of decoding 12 bits of information
     Binary address setting
     Received codes are checked 3 times
     Address/Data number combination: 8 address bits and 4 data bits
     Built-in oscillator needs only 5% resistor
     Valid transmission indicator
     Easy interface with an RF or an infrared transmission medium
     Minimal external components
     Secure and robust protocol
     Ideal for remote control and security applications
     Compatible with the HT12E encoder IC
     18-pin DIP

    Applications:-
     Burglar alarm system
     Smoke and fire alarm system
     Garage door controllers
     Car door controllers
     Car alarm system
     Security system
     Cordless telephones

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