HI-3182PSx-N, HI-3185PSx-N
ARINC 429 DIFFERENTIAL LINE DRIVER
August 2006
GENERAL DESCRIPTION
PIN CONFIGURATION (Top View)
The HI-3182, and HI-3185 bus interface products are silicon
gate CMOS devices designed as a line driver in accordance with
the ARINC 429 bus specifications. In addition to being func-
tional upgrades of Holt's HI-8382 product, they are also alternate
sources for a variety of similar line driver products from other
manufacturers.
VREF
1
2
3
4
5
6
7
14 V1
N/C (See Note * )
13 CLOCK
12 DATA (B)
11 CB
SYNC
DATA (A)
CA
Inputs are provided for clocking and synchronization. These
signals are AND'd with the DATA inputs to enhance system
performance and allow the HI-318X series of products to be
used in a variety of applications. Both logic and synchronization
inputs feature built-in 2,000V minimum ESD input protection as
well asTTLand CMOS compatibility.
10 BOUT
AOUT
9
8
+V
-V
GND
HI-3185PSx-N
The differential outputs of the HI-318X series of products are
programmable to either the high speed or low speedARINC 429
output rise and fall time specifications through the use of two
external capacitors. The output voltage swing is also adjustable
by the application of an external voltage to the VREF input. A
37.5 ohm resistor is in series with each ARINC output. In
addition the HI-3182 product also has a fuse in series with each
output.
14 - PIN PLASTIC SMALL OUTLINE (SOIC) NB
Note: * Pin 2 is internally not connected
(See Page 5 for HI-3182PSx-N package pin configurations)
The HI-318X series of line drivers are intended for use where
logic signals must be converted to ARINC 429 levels such as
when using an ASIC, the HI-8584/HI-3282/HI-8282A
ARINC 429 Serial Transmitter/Dual Receiver, the HI-6010
ARINC 429 Transmitter/Receiver or the HI-8783 ARINC
Interface Device. Holt products are readily available for both
industrial and military applications. Please contact the Holt
Sales Department for additional information.
FUNCTION
+
_
ARINC 429 DIFFERENTIAL LINE DRIVER
FEATURES
! Low power CMOS
! TTL and CMOS compatible inputs
! Programmable output voltage swing
! Adjustable ARINC rise and fall times
! Operates at data rates up to 100 Kbits
! Overvoltage protection
TRUTH TABLE
SYNC CLOCK DATA(A) DATA(B) AOUT BOUT COMMENTS
X
L
L
X
H
H
H
H
X
X
L
X
X
L
0V
0V
0V
0V
0V
0V
NULL
NULL
NULL
LOW
HIGH
NULL
! Industrial and Military temperature ranges
H
H
H
H
L
H
L
-VREF +VREF
+VREF -VREF
H
H
H
0V
0V
HOLT INTEGRATED CIRCUITS
www.holtic.com
(DS3182N Rev. A )
08/06