The HI-8593 and HI-8594 are CMOS integrated circuits designed to directly drive the ARINC 429 bus using only -5V and -5V supplies. Both devices are reduced pin count versions of HI-8592 without the negative voltage converter incorporated. These devices are compatible with Holt’s existing HI-8570 and HI-8571 respectively, with the added advantage of the tri-state outputs. For even smaller board footprint, versions are also available in leadless, surface mount QFN-style packages. Products with 5 Ohm or 37.5 Ohm resistors in series with each ARINC output are available to allow the use of external resistors for lightning protection.

Features

• Low Current 5 Volt Supplies
• On-chip Line Driver Slope Control and Selection by Logic Input
• Tri-state ARINC Outputs
• Built-in 2,000V minimum ESD Protection of Logic Inputs
• 5V or 3.3V Logic Level Compatibility
• Plastic and Ceramic Package Options - Surface Mount and DIP
• Thermally Enhanced SOIC Packages
• Lead-free / RoHS Compliant options available
• Industrial & Extended Temperature Ranges
• Burn-in Available

Applications

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