EF4442

This device contains circuitry to protect the inputs against damage due to high static voltages or electric fields: however, it is advised that normal precautions be taken to avoid application of any voltage higher than maximum rated voltages to this high impedance circuit.

The EF4442 is a reception interface for 4 ARINC 429 channels. Two models of operation are provided:
• When in A mode, the circuit can be considered as a peripheral of an EF 6800 or EF6802 microprocessor and is totally software programmable (for example, for test purposes).
• When in B mode, the parameters are hardware programmed. Reading the registers which contain messages is only possible (max. scan frequency: 2 MHz).