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HI-8585PSI Datasheet(PDF) 1 Page - Holt Integrated Circuits |
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HI-8585PSI Datasheet(HTML) 1 Page - Holt Integrated Circuits |
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1 / 8 page  HI-8585, HI-8586 ARINC 429 LINE DRIVER DESCRIPTION ! Direct ARINC 429 line driver interface in a small package On-chip zener to set output levels On-chip line driver slope control and selection by logic input Low current 12 to 15 volt supplies CMOS / TTL logic pins Plastic and ceramic package options - surface mount and DIP ! ! ! ! ! ! ! Thermally enhanced SOIC packages Mil processing available FEATURES PIN CONFIGURATION SLP1.5 TX0IN TX1IN GND V- TXAOUT TXBOUT V+ SUPPLY VOLTAGES FUNCTION TABLE The HI-8585 and HI-8586 are CMOS integrated circuits designed to directly drive the ARINC 429 bus in an 8-pin package. Two logic inputs control a differential voltage between the output pins producing a +10 volt One, a -10 volt Zero, and a 0 volt Null. The CMOS/TTL control inputs are translated to ARINC specified amplitudes using on board zeners. A logic input is provided to control the slope of the differential output signal. Timing is set by on-chip resistor and capacitor and tested to be within ARINC requirements. The HI-8585 has 37.5 ohms in series with each line driver output. The HI-8586 provides the option to bypass part of the output resistance so that external series protection circuits can add their resistances. The HI-8585 or the HI-8586 along with the HI-8588 line receiver offer the smallest options available to get on and off the ARINC bus. PIN DESCRIPTION TABLE V+ = 12V to 15V V- = -12V to -15V 1 2 3 45 6 7 8 August 2006 www.holtic.com (DS8585 Rev. J) 08/06 1 2 3 4 5 6 7 8 PIN SLP 1.5 TX0IN TX1IN GND V- TXAOUT TXBOUT V+ SYMBOL LOGIC INPUT LOGIC INPUT LOGIC INPUT POWER POWER OUTPUT OUTPUT POWER FUNCTION CMOS OR TTL, V+ IS OK CMOS OR TTL CMOS OR TTL GROUND -12 TO -15 VOLTS LINE DRIVER TERMINAL A LINE DRIVER TERMINAL B +12 TO +15 VOLTS DESCRIPTION 0 0 0 1 1 1 TX1IN TX0IN SLP1.5 TXAOUT TXBOUT SLOPE 0 1 1 0 0 1 X 0 1 0 1 X 0V -5V -5V 5V 5V 0V 0V 5V 5V -5V -5V 0V N/A 10 s m 1.5 s m 10 s m 1.5 s m N/A HOLT INTEGRATED CIRCUITS |
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