HOLT INTEGRATED CIRCUITS

5

HI-8444, HI-8445, HI-8448

HI-8444PSI

20 PIN PLASTIC TSSOP

-40°C TO +85°C

I

None

NO

SOLDER

HI-8444PSI-10

20 PIN PLASTIC TSSOP

-40°C TO +85°C

I

10K

NO

SOLDER

HI-8444PST

20 PIN PLASTIC TSSOP

-55°C TO +125°C

T

None

NO

SOLDER

HI-8444PST-10

20 PIN PLASTIC TSSOP

-55°C TO +125°C

T

10K

NO

SOLDER

HI-8445PSI

20 PIN PLASTIC TSSOP

-40°C TO +85°C

I

None

NO

SOLDER

HI-8445PSI-10

20 PIN PLASTIC TSSOP

-40°C TO +85°C

I

10K

NO

SOLDER

HI-8445PST

20 PIN PLASTIC TSSOP

-55°C TO +125°C

T

None

NO

SOLDER

HI-8445PST-10

20 PIN PLASTIC TSSOP

-55°C TO +125°C

T

10K

NO

SOLDER

HI-8448PQI

44 PIN PLASTIC QUAD FLATPACK (PQFP)

-40°C TO +85°C

I

None

NO

SOLDER

HI-8448PQI-10

44 PIN PLASTIC QUAD FLATPACK (PQFP)

-40°C TO +85°C

I

10K

NO

SOLDER

HI-8448PQT

44 PIN PLASTIC QUAD FLATPACK (PQFP)

-55°C TO +125°C

T

None

NO

SOLDER

HI-8448PQT-10 44 PIN PLASTIC QUAD FLATPACK (PQFP)

-55°C TO +125°C

T

10K

NO

SOLDER

W

W

W

W

W

W

TIMING DIAGRAMS

1.5V

1.5V

IN A

IN B

OUT A

OUT B

1.5V

1.5V

TEST A

/

TEST B

OUT A

/

OUT B

ARINC 429 Receiver Timing

Test Mode Timing

PACKAGE

DESCRIPTION

TEMPERATURE

RANGE

PART

NUMBER

LEAD

FINISH

ORDERING INFORMATION

PROCESS

FLOW

BURN

IN

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

10 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.

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

requirements of DO-160D, Level 3, waveforms 3, 4 and 5A with

the 10 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.

EXTERNAL

RESISTOR