HI-8585, HI-8586
September 2011
ARINC 429
Line Driver
PIN CONFIGURATION
SLP1.5
1
TX0IN
2
TX1IN
3
GND
4
DESCRIPTION
The HI-8585 and HI-8586 are CMOS integrated circuits
designed to directly drive the ARINC 429 bus in an 8-pin
package. Two logic inputs control a differential voltage
between the output pins producing a +10 volt One, a
-10 volt Zero, and a 0 volt Null.
The CMOS/TTL control inputs are translated to ARINC
specified amplitudes using on board band-gap reference.
A logic input is provided to control the slope of the differen-
tial output signal. Timing is set by on-chip resistor and
capacitor and tested to be within ARINC requirements.
The HI-8585 has 37.5 ohms in series with each line driver
output. The HI-8586 provides the option to bypass part of
the output resistance so that series resistance can be
used in external protection circuitry.
The HI-8585 or the HI-8586 along with the HI-8588 or the
Hi-8591 line receivers offer the smallest options available
to get on and off the ARINC bus.
8
V+
7
TXBOUT
6
TXAOUT
5
V-
SUPPLY VOLTAGES
V+ = 12V to 15V
V- = -12V to -15V
FUNCTION TABLE
TX1IN TX0IN SLP1.5
TXAOUT
0V
-5V
-5V
5V
5V
0V
TXBOUT
0V
5V
5V
-5V
-5V
0V
SLOPE
N/A
10
m
s
1.5
m
s
10
m
s
1.5
m
s
N/A
0
0
0
0
1
1
0
0
1
X
0
1
0
1
X
FEATURES
!
!
!
!
!
!
!
!
Direct ARINC 429 line driver interface
in a small package
On-chip band-gap reference to set
output levels
On-chip line driver slope control and
selection by logic input
Low current 12 to 15 volt supplies
CMOS / TTL logic pins
Plastic and ceramic package options -
surface mount and DIP
Thermally enhanced SOIC packages
Industrial & extended temperature
ranges
1
1
1
PIN DESCRIPTION TABLE
PIN
1
2
3
4
5
6
7
8
SYMBOL
SLP 1.5
TX0IN
TX1IN
GND
V-
TXAOUT
TXBOUT
V+
FUNCTION
LOGIC INPUT
LOGIC INPUT
LOGIC INPUT
POWER
POWER
OUTPUT
OUTPUT
POWER
DESCRIPTION
CMOS OR TTL, V+ IS OK
CMOS OR TTL
CMOS OR TTL
GROUND
-12 TO -15 VOLTS
LINE DRIVER TERMINAL A
LINE DRIVER TERMINAL B
+12 TO +15 VOLTS
( DS 8585 Rev. N)
HOLT INTEGRATED CIRCUITS
www.holtic.com
09/11
HOLTIC [ HOLT INTEGRATED CIRCUITS ]
