HI-8585 / HI-8586

The HI-8585 and HI-8586 are CMOS integrated circuits designed to directly drive the ARINC 429 bus in an 8 pin package. Two logic inputs control a differential voltage between the output pins producing a +10 volt One, a -10 volt Zero, and a 0 volt Null.

The CMOS/TTL control inputs are translated to ARINC specified amplitudes. A logic input is provided to control the slope of the differential output signal. Timing is set by on-chip resistor and capacitor and tested to be within ARINC requirements.

The HI-8585 has 37.5 ohms in series with each line driver output. The HI-8586 provides the option to bypass most of the output resistance so that series protection circuits can add their resistances.

The HI-8585 or the HI-8586 along with the HI-8588 line receiver offer the smallest options available to get on and off the ARINC bus.



  • Direct ARINC 429 Line Driver Interface in a Small Package
  • On-chip Line Driver Slope Control and Selection by Logic Input
  • Low Current 12 to 15 Volt Supplies
  • CMOS / TTL Logic Pins
  • Plastic and Ceramic Package Options - Surface Mount and DIP
  • Thermally Enhanced SOIC Packages
  • Industrial & Extended Temperature Ranges Available



  • Avionics Data Communication
  • CMOS/TTL to ARINC Level Conversion
  • CMOS/TTL to RZ & NRZ Level Conversion