
HI-8590
ARINC 429 LINE DRIVER AND LINE RECEIVER
DESCRIPTION
!
Direct ARINC 429 interface to line driver
and line receiver
!
!
Internal
Digital output
CMOS/TTL logic pins
Line Receiver
Input hystersis at least 2 volts
Test inputs bypass analog inputs
Output tri-state mode
Plastic thermally enhanced surface
mount (ESOIC) package
Line Driver
!
!
!
zener sets output levels
slope control
Mil-temperature range available
!
!
!
Both functions in a single 16 pin package
!
!
!
FEATURES
PIN CONFIGURATION
TXAOUT
N/C
V-
GND
TX0IN
RINA
VCC
SUPPLY VOLTAGES
PIN DESCRIPTION TABLE
The HI-8590 is a CMOS integrated circuit with independ-
ent ARINC 429 line driver and line receiver in a single
16 pin package. Both ARINC 429 functions are imple-
mentedinanalog/digitalCMOS.
The line driver function in the HI-8590 connects directly to
the ARINC bus and translates CMOS/TTL input levels to
ARINC 429 specified amplitudes using built-in zeners.
The slope of the differential output signal is controlled by a
single logic input without the use of any external capaci-
tors. Ainternal37.5ohmresistorisprovidedinserieswith
each line driver output.
The line driver function is the
sameasHolt's8pinstand-aloneHI-8585linedriver.
The line receiver interfaces directly to the ARINC 429 bus
and translates incoming ARINC levels to levels compati-
ble with CMOS logic. Internal comparator levels are set
just below the standard 6.5 volt minimum data threshold
and just above the standard 2.5 volt maximum null thresh-
old
The TESTA and TESTB inputs of the line receiver allow
bypassing the analog input circuitry for testing purposes.
Also,ifbothtestinputsaretakenhigh,thereceiver'sdigital
outputs are tri-stated allowing wire-or possibilities. The
line driver function is the same as Holt's 8 pin stand-alone
HI-8588linereceiver.
January 2001
PIN
SYMBOL
FUNCTION
DESCRIPTION
1
V+
POWER
+12 TO + 15 VOLTS
2
TESTB
LOGIC INPUT
CMOS
3
ROUTB
LOGIC OUTPUT
RECEIVER CMOS OUTPUT B
4
ROUTA
LOGIC OUTPUT
RECEIVER CMOS OUTPUT A
5
TXBOUT
ARINC OUTPUT
LINE DRIVER TERMINAL B
6
TXAOUT
ARINC OUTPUT
LINE DRIVER TERMINAL A
7
N/C
NO CONNECT
8
V-
POWER
-12 TO -15 VOLTS
9
GND
POWER
GROUND
10
TX1IN
LOGIC INPUT
CMOS OR TTL
11
TX0IN
LOGIC INPUT
CMOS OR TTL
12
RINA
ARINC INPUT
RECEIVER A INPUT
13
RINB
ARINC INPUT
RECEIVER B INPUT
14
TESTA
LOGIC INPUT
CMOS
15
SLP1.5
LOGIC INPUT
CMOS OR TTL, V+ IS OK
16
VCC
POWER
+5 VOLT SUPPLY
3
4
5
6
7
8
10
9
11
12
13
14
15
16
V+
ROUTB
TESTA
TESTB
SLP1.5
ROUTA
RINB
TXBOUT
TX1IN
Vcc =
V+ = 12V to 15V
V-
= -12V to -15V
+5V ± 5%
1
2
(DS8590 Rev. B)
01/01
HOLT INTEGRATED CIRCUITS
1