HI-8444PSI-10 Holt Integrated Circuits, HI-8444PSI-10 Datasheet - Page 5

• Manufacturer Part Number: HI-8444PSI-10
• Manufacturer: Holt Integrated Circuits

Specifications of HI-8444PSI-10

• Number Of Transmitters: Not Required
• Power Supply Requirement: Single
• Package Type: TSSOP
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 20
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Dual Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Dual Supply Voltage (min): Not RequiredV
• Lead Free Status / RoHS Status: Not Compliant

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.
TIMING DIAGRAMS
OUT B
OUT A
IN B
IN A
t
LH
1.5V
ARINC 429 Receiver Timing
t
HL
t
LH
1.5V
HOLT INTEGRATED CIRCUITS
HI-8444, HI-8445, HI-8448
t
HL
5
The HI-8444-10, HI-8445-10 and HI-8448-10 will meet the
requirements of DO-160E, 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.
TEST B
TEST A
OUT A
OUT B
/
/
t
TOH
1.5V
Test Mode Timing
1.5V
t
TOL