HI-8591
August 2006
ARINC 429 LINE RECEIVER
PIN CONFIGURATIONS
VCC - 1
TESTA - 2
RINB - 3
RINA - 4
8 - TESTB
7 - ROUTB
6 - ROUTA
5 - GND
DESCRIPTION
The HI-8591 is an ARINC 429 bus interface receiver
designed to operate from a single 3.3 V or 5 V supply. The
part is designed with high-impedance inputs to minimize
bus loading, and has an exceptional input common-mode
performance in excess of +/- 30V, making it immune to
ground offsets around the aircraft. The RINA and RINB
inputs of the standard HI-8591 may be connected directly
to the ARINC 429 bus. To enable external lightning protec-
tion circuitry to be added, the HI-8591-40 variant is avail-
able. The HI-8591-40 requires only the addition of external
40 K
W
, ¼ watt resistors in series with RINA and RINB to
allow the part to meet the lightning protection requirements
of DO-160D level 3.
The typical 10 volt differential ARINC 429 signal is trans-
lated and input to a window comparator and latch. The
comparator levels are set just below the standard 6.5 volt
minimum ARINC data threshold and just above the stan-
dard 2.5 volt maximum ARINC null threshold.
The TESTA and TESTB inputs bypass the analog inputs for
testing purposes. Also if TESTA and TESTB are both taken
high, the digital outputs are forced to zero.
See Holt Application Note AN-300 for more information on
lightning protection.
HI-8591PSI, HI-8591PST & HI-8591PSM
HI-8591PSI-40, HI-8591PST-40 & HI-8591PSM-40
8 - PIN PLASTIC NARROW BODY SOIC
NC
VCC
TESTB
NC
TESTA
RINB
RINA
NC
1
2
3
4
16
15
14
13
12
11
10
9
ROUTB
NC
ROUTA
NC
HI-8591PCI, HI-8591PCT, HI-8591PCI-40 & HI-8591PCT-40
16- pin 4mm x 4mm Chip-scale package
SUPPLY VOLTAGES
vcc
= 3.3V ± 10%, 5.0V ± 10%
FEATURES
!
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!
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FUNCTION TABLE
RINA
-1.25V to 1.25V
-3.25V to -6.5V
3.25V to 6.5V
X
X
RINB
-1.25V to 1.25V
3.25V to 6.5V
-3.25V to -6.5V
X
X
X
TESTA
0
0
0
0
1
1
TESTB
0
0
0
1
0
1
ROUTA ROUTB
0
0
1
0
1
0
0
1
0
1
0
0
ARINC 429 line receiver interface in a
small outline package
3.3V single rail supply voltage
+/-30 V common-mode performance
>140 KOhm input impedance
Lightning protection simplified with the
ability to add 40 KOhm external series
resistors
Receiver input hysteresis at least 2 volt
Test inputs bypass analog inputs and
force digital outputs to a one, zero or
null state
X
PIN DESCRIPTION TABLE
SYMBOL
VCC
TESTA
RINB
RINA
GND
ROUTA
ROUTB
TESTB
FUNCTION
SUPPLY
LOGIC INPUT
ARINC INPUT
ARINC INPUT
POWER
LOGIC OUTPUT
LOGIC OUTPUT
LOGIC INPUT
DESCRIPTION
3.3V or 5V SUPPLY
CMOS
RECEIVER B INPUT
RECEIVER A INPUT
GROUND
RECEIVER CMOS OUTPUT A
RECEIVER CMOS OUTPUT B
CMOS
(DS8591, Rev. D)
HOLT INTEGRATED CIRCUITS
www.holtic.com
NC
GND
NC
NC
5
6
7
8
08/06
HOLTIC [ HOLT INTEGRATED CIRCUITS ]
