HI-8444(2016) データシートの表示（PDF） - Holt Integrated Circuits

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HI-8444
(Rev.:2016)

Quad / Octal ARINC 429 Line Receivers

Holt Integrated Circuits 

TIMING DIAGRAMS

HI-8444, HI-8445, HI-8448

IN A

IN B

TEST A

/

TEST B

1.5V

tTOH

tTOL

tLH

OUT A

1.5V

tHL

tLH

OUT A

/

tHL

OUT B

1.5V

OUT B

1.5V

ARINC 429 Receiver Timing

INTERNAL LIGHTNING PROTECTION (-10 Only)

The HI-8444-10, HI-8445-10 and HI-8488-10 are similar to the

“non -10” configurations with the exception that an external

15 Kohm resistor must be added in series with each ARINC input

in order to properly detect the ARINC 429 specified input

thresholds. This option is especially useful in applications where

external lightning protection circuitry is required.

Test Mode Timing

The HI-8444-10, HI-8445-10 and HI-8448-10 will meet the

requirements of DO-160G, Level 3, waveforms 3, 4, 5A and 5B

with the 15 Kohm series resistors in place.

Please refer to the Holt AN-300 Application Note for additional

information and recommendations on lightening protection of Holt

Line Drivers and Receivers.

HOLT INTEGRATED CIRCUITS

5

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