HI-3189
August 2008
ARINC 429
Differential Line Driver
PIN CONFIGURATION
VREF
1
RATE SELECT
2
SYNC
3
DATA(A)
4
GENERAL DESCRIPTION
The HI-3189 bus interface product is a silicon gate CMOS device
designed as a line driver in accordance with the ARINC 429 bus
specifications. It is a drop-in alternate source for the RM3182A
(Fairchild /Raytheon) and DEI3182A.
Inputs are provided for clocking and synchronization. These
signals are AND'd with the DATA inputs to enhance system
performance and allow the HI-3189 to be used in a variety of
applications. Both logic and synchronization inputs feature
built-in 2,000V minimum ESD input protection as well as TTL
and CMOS compatibility.
The HI-3189 has a digitally controlled data-rate input, allowing
ARINC 429 line driver rise and fall times to be generated without
changing the value of external timing components.
The output voltage swing is adjustable by the application of an
external voltage to the VREF input. The OUTA and OUTB
outputs have internal 37.5 Ohm series resistors to meet ARINC
429 line driver impedance requirements, voltage clamp diodes
to improve robustness to over-voltage conditions and are short-
circuit tolerant. Alternately, the AMPA and AMPB outputs have no
internal resistors for applications that require additional
clamping circuits to protect the HI-3189 from voltages that
exceed the Maximum Ratings.
The HI-3189 line driver is intended for use where logic signals
must be converted to ARINC 429 levels such as when using an
ASIC, for example the HI-3584 429 Serial Transmitter/Dual
Receiver, the HI-6010 ARINC 429 Transmitter/Receiver or
similar ARINC Interface Device.
Holt products are readily
available for both industrial and military applications. Please
contact the Holt Sales Department for additional information.
(Top View)
16
VLOGIC
15
AMPB
14
CLOCK
13
DATA(B)
HI-3189
CD
12
CAPB
CAPA
5
11
OUTB
10
AMPA
9
+VS
-VS
7
GND
8
OUTA
6
16 - Pin Ceramic Side Brazed DIP
(See ordering information for additional pin configurations)
+5V
+15V
AMPA
INPUTS
DATA (A)
DATA (B)
RATE
SELECT
VREF
VLOGIC
SYNC
CLOCK
+VS
OUTA
TO ARINC BUS
-VS
GND
CAPB
CAPA
OUTB
AMPB
FEATURES
!
Direct replacement for Fairchild/Raytheon
RM3182A and DEI3182A
!
TTL and CMOS compatible inputs
!
Programmable output voltage swing
!
Programmable ARINC rise and fall times
!
Plastic 16-pin ceramic DIP and 28-lead ceramic
LCC package options
!
Operates at data rates up to 100 Kbits/s
!
Overvoltage and short-circuit tolerance
!
Industrial and Military temperature ranges
-15V
Figure 1. ARINC 429 Bus Application
TRUTH TABLE
SYNC CLOCK DATA(A) DATA(B) AOUT
X
L
H
H
H
H
L
X
H
H
H
H
X
X
L
L
H
H
X
X
L
H
L
H
0V
0V
0V
-V
REF
+V
REF
0V
BOUT COMMENTS
0V
0V
0V
+V
REF
-V
REF
0V
NULL
NULL
NULL
LOW
HIGH
NULL
Table 1. Truth Table
(Ds3189 Rev.New )
HOLT INTEGRATED CIRCUITS
www.holtic.com
08/08
HOLTIC [ HOLT INTEGRATED CIRCUITS ]
