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HT12D - Decoder

HT12D - Decoder

HT12D - Decoder

The 212 decoders are a series of CMOS LSIs for remote control system application. For proper operation, a pair of encoder/decoder with the same number of addresses and data format should be chosen. The decoders receive serial addresses and data from a programmed 212 series of encoders that are transmitted by a carrier using an RF or an IR transmission medium. They compare the serial input data three times continuously with their 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 212 series of decoders are capable of decoding informations that consist of N bits of address and 12N bits of data. 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.

Features:

  • Operating voltage: 2.4V~12V
  • Low power and high noise immunity CMOS technology
  • Low standby current
  • Capable of decoding 12 bits of information
  • Pair with Holteks 212 series of encoders
  • Binary address setting
  • Received codes are checked 3 times
  • Address/Data number combination 
  •     HT12D: 8 address bits and 4 data bits 
  •     HT12F: 12 address bits only 
  • Built-in oscillator needs only 5% resistor 
  • Valid transmission indicator 
  • Easy interface with an RF or an infrared transmission medium 
  • Minimal external components
Applications:

  • Burglar alarm system 
  • Smoke and fire alarm system 
  • Garage door controllers 
  • Car door controllers
  • Car alarm system 
  • Security system 
  • Cordless telephones 
  • Other remote control systems

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  • Views: 848
  • Product Code: HT12D - Decoder
  • Availability: In Stock
  • Rs35.00

Tags: ht12d, decoder, ic, semiconductor, demultiplexer

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