HI-3182PSx-N, HI-3185PSx-N
August 2006
ARINC 429 DIFFERENTIAL LINE DRIVER
PIN CONFIGURATION
V
REF
1
N/C (See Note * ) 2
SYNC 3
DATA (A) 4
14 V
1
13 CLOCK
12 DATA (B)
11 C
B
10 B
OUT
9 +V
8 GND
GENERAL DESCRIPTION
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.
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 as TTL and CMOS compatibility.
The differential outputs of the HI-318X series of products are
programmable to either the high speed or low speed ARINC 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.
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.
(Top View)
C
A
5
A
OUT
6
-V 7
HI-3185PSx-N
14 - PIN PLASTIC SMALL OUTLINE (SOIC) NB
Note: * Pin 2 is internally not connected
(See Page 5 for HI-3182PSx-N package pin configurations)
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
!
Industrial and Military temperature ranges
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
(DS3182N Rev. A )
HOLT INTEGRATED CIRCUITS
www.holtic.com
08/06
HOLTIC [ HOLT INTEGRATED CIRCUITS ]
