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HI-8448PQI-10 Datasheet(PDF) 1 Page - Holt Integrated Circuits |
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HI-8448PQI-10 Datasheet(HTML) 1 Page - Holt Integrated Circuits |
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1 / 9 page  ARINC INPUTS TESTA TESTB OUTA OUTB INA - INB -2.5 to +2.5 V 0 0 0 0 < -6.5 V 0 0 0 1 > +6.5 V 0 0 1 0 X0 1 0 1 X1 0 1 0 X1 1 0 0 FUNCTION TABLE HI-8444, HI-8445, HI-8448 DESCRIPTION FEATURES PIN CONFIGURATIONS (See page 6 for additional pin configurations) The HI-8444 and HI-8445 are quad ARINC 429 line receiver ICs available in a 20-pin TSSOP package. The HI- 8448 contains 8 independent ARINC 429 line receivers. The technology is analog / digital CMOS. The device is designed to operate from either a 5V or 3.3V supply. Each receiver channel translates incoming ARINC 429 data bus signals to a pair of TTL / CMOS outputs. The optional HI-8444-10, HI-8445-10 and HI-8448-10 are designed to be used with an external 15 Kohm series resistor. The “-10” devices meet the lightning protection requirements of DO-160E, level 3, waveforms 3, 4, 5A, and 5B. The TESTA and TESTB inputs bypass the analog inputs for testing purposes. They force the receiver outputs to the specified ZERO, ONE or NULL state. The ARINC inputs are ignored when the device is in the test mode. The HI-8445 is identical to the HI-8444 except the TESTA and TESTB pins are not available. ! ! ! ! ! Direct ARINC 429 quad or octal line receivers in small footprint packages 3.3V or 5.0V single supply operation Test inputs bypass analog inputs and force digital outputs to a one, zero, or null state ARINC inputs are internally lightning protected per DO- 160E level 3 (-10 configuration only) Hi-Rel processing options available HI-8444PS HI-8444PS-10 & HI-8445PS HI-8445PS-10 Quad Receiver IN1 A IN1 B IN2 A IN2 B TESTA (8444 only) TESTB (8444 only) IN3 A IN3 B IN4 A IN4 B OUT1 A OUT1 B OUT2 A OUT2 B VDD VSS OUT3 A OUT3 B OUT4 A OUT4 B 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 20 Pin Plastic TSSOP package May 2010 (DS8444 Rev. H) 05/10 Quad / Octal ARINC 429 Line Receivers HI-8448PS HI-8448PS-10 Octal Receiver IN1 AX IN1 BX IN1 AY IN1 BY IN2 AX IN2 BX IN2 AY IN2 BY TESTA (X) TESTB (X) TESTA (Y) TESTB (Y) IN3 AX IN3 BX IN3 AY IN3 BY IN4 AX IN4 BX IN4 AY OUT1 AX OUT1 BX OUT1 AY OUT1 BY OUT2AX OUT2 BX OUT2 AY OUT2 BY VDD VSS OUT3 AX OUT3 BX OUT3 AY OUT3 BY OUT4 AX OUT4 BX OUT4 AY OUT4 BY IN4 BY 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 38 Pin Plastic TSSOP package HOLT INTEGRATED CIRCUITS www.holtic.com |
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