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February 2001
GENERAL DESCRIPTION
The HI-8482 bus interface unit is a silicon gate CMOS device designed as a dual differential line receiver in accordance with the requirements of the ARINC 429 bus specification. The device translates incoming ARINC 429 signals to normal CMOS/TTL levels on each of its two independent receive channels. The HI-8482 is also functionally equivalent to the Fairchild/Raytheon RM3183. The self-test inputs force the outputs to either a ZERO, ONE, or NULL state for system tests. While in self-test mode, the ARINC inputs are ignored. All the ARINC inputs have built-in hysteresis to reject noise that may be present on the ARINC bus. Additional input noise filtering can also be accomplished with external capacitors.
HI-8482 Datasheet
