HI-8590

Direct ARINC 429 interface to line driver
and line receiver
Line Driver
zener sets output levels
slope control
Mil-temperature range available
Both functions in a single 16 pin package
    Internal
    Digital output
    CMOS/TTL logic pins
Line Receiver
    Input hystersis at least 2 volts
    Test inputs bypass analog inputs
    Output tri-state mode
Plastic thermally enhanced surface
mount (ESOIC) package

Supply voltages
    V_CC......................................................... +7.0V
    V+............................................................ +20V
    V- ............................................................. -20V

Voltage on inputs
    ARINC pin .................................. +29V to - 29V
    TX1IN, TX0IN or SLP1.5 .......-0.3 to  V_CC+ +0.3
    All other input pins.......................-0.3 toV +0.3

DC current per input pin .......................... +10mA

Power dissipation at 25°C
    Plastic SO................................................. 1.0W

Thermal Resistance- ja ........................... 98°C/W

Solder Temperature
    Leads ................................. +280°C for 10 sec
    Package body ......................................+220°C

Storage Temperature ............... -65°C to +150°C

Supply Voltages
    Vcc .............................................................+5V
    V+.............................+12V ± 5%or +15V ±10%
    V-................................-12V ± 5%or -15V ±10%
Temperature Range
    Industrial Screening ................ -40°C to +85°C
    Hi-Temp Screening ................ -55°C to +125°C
Junction Temperature, Tj .......................+ 175°C

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 implementedinanalog/ digitalCMOS.

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. Ainternal 37.5 ohmresistor is providedin series with each line driver output. The line driver function is the sameasHolt's8pinstand-aloneHI-8585linedriver.

The HI-8590 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 maximumnull threshold

The TESTA and TESTB inputs of the line receiver allow bypassing the analog input circuitry for testing purposes. Also, if bothtest inputs aretakenhigh, thereceiver's digital outputs of HI-8590  are tri-stated allowing wire-or possibilities. The line driver function is the same as Holt's 8 pin stand-alone HI-8588linereceiver.