Circuit transmits ARINC 429 data

摘要

The ARINC (Aeronautical Radio Inc) 429 specification defines the air transport industry's hardware and protocol standards for the transfer of digital data between avionics systems. Circuitry that can implement elements of the 429 spec is often an essential part of control and sensor electronics intended for the aviation environment. ASIC chips for this purpose are commercially available, but they typically require nonstan-dard power supplies (for example, +-15V) and wide parallel interfaces.