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HT12D HT12F[产品打印页面]


产品名称: HT12D HT12F
产品型号: HT12D HT12F
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简单介绍
解码电路: HT12D/HT12F -- 212 Series of Decoders HT12D HT12F

HT12D HT12F 的详细介绍
HT12D HT12F

HT12D HT12F -- 212 SeriesofDecoders

General Description

The 212 decoders are a seriesofCMOS LSIs for remote control system applications. They arepairedwith Holtek's 212 series of encoders (refer totheencoder/decoder cross reference table). For proper operation,apair of encoder/decoder with the same number of addresses anddataformat should be chosen.

The decoders receive serial addressesanddata from a programmed 212 series of encoders thataretransmitted by a carrier using an RF or an IR transmissionmedium.They compare the serial input data three times continuouslywiththeir local addresses. If no error or unmatched codes arefound,the input data codes are decoded and then transferred to theoutputpins. The VT pin also goes high to indicate a validtransmission.

The 212 series of decodersarecapable of decoding informations that consist of N bits ofaddressand 12-N bits of data. Of this series, the HT12D is arrangedtoprovide 8 address bits and 4 data bits, and HT12F is used todecode12 bits of address information. 

Features

  • HT12D HT12F Operating voltage: 2.4V~12V
  • HT12D HT12F Low power and high noise immunity CMOS technology
  • Low standby current
  • Capable of decoding 12 bits of information
  • Binary address setting
  • Receired 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
  • Pair with Holtek's 212 series of encoders
  • 18-pin DIP, 20-pin SOP package

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HT12D HT12F
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