HT6030/HT6032/HT6034 -- 312 Series of Decoders

General Description

TThe 312 decoders are a series of CMOS LSIs for remote control system applications. They are paired with 312 series of encoders. For proper operation a pair of encoder/decoder with the same number of address and data format should be selected (refer to the encoder/decoder cross reference tables).

The 312 series of decoders receive serial address and data from its corresponding series of encoders that are transmitted by a carrier using an RF or an IR transmission medium. Then it compares the serial input information twice continuously with its local address. If no errors or unmatched codes are encountered, the input data codes are decoded and transferred to the output pins. The VT pin also goes high to indicate a valid transmission.

The 312 series of decoders are capable of decoding 12 bits of information that consists of N bits of address and 12-N bits of data. To meet various applications they are arranged to provide a number of data pins ranging from 0 to 4 and an address pin ranging from 8 to 12. Thus, various combinations of address/data number are available in different packages.

Features

  • Operating voltage: 2.4V~12V
  • Low power and high noise immunity CMOS technology
  • Low standby current
  • Capable of decoding 12 bits of information
  • 8~12 address pins
  • 0~4 data pins
  • Trinary address setting
  • Received data are checked two times
  • Built-in oscillator needs only 5% resistor
  • VT goes high during a valid transmission
  • Easy interface with an RF or an infrared transmission medium
  • Minimal external components
  • Pair with Holtek's 312 series of encoders
  • 18-pin DIP, 20-pin SOP package

Technical Document

 

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