HI-8590

HI-8590 January 2001 ARINC 429 LINE DRIVER AND LINE RECEIVER PIN CONFIGURATION DESCRIPTION The HI-8590 is a CMOS integrated circuit with independent ARINC 429 line driver and line receiver in a single 16 pin package. Both ARINC 429 functions are implemented in analog/digital CMOS. The line driver function in the HI-8590 connects directly to the ARINC bus and translates CMOS/TTL input levels to ARINC 429 specified amplitudes using built-in zeners. The slope of the differential output signal is controlled by a single logic input without the use of any external capacitors. A internal 37.5 ohm resistor is provided in series with each line driver output. The line driver function is the same as Holt's 8 pin stand-alone HI-8585 line driver. The line receiver interfaces directly to the ARINC 429 bus and translates incoming ARINC levels to levels compatible with CMOS logic. Internal comparator levels are set just below the standard 6.5 volt minimum data threshold and just above the standard 2.5 volt maximum null threshold The TESTA and TESTB inputs of the line receiver allow bypassing the analog input circuitry for testing purposes. Also, if both test inputs are taken high, the receiver's digital outputs are tri-stated allowing wire-or possibilities. The line driver function is the same as Holt's 8 pin stand-alone HI-8588 line receiver. V+ 1 TESTB 2 16 VCC 15 SLP1.5 14 TESTA 13 RINB 12 RINA 11 TX0IN 10 TX1IN 9 GND ROUTB 3 ROUTA 4 TXBOUT 5 TXAOUT 6 N/C 7 V- 8 SUPPLY VOLTAGES Vcc...