HI-8382, HI-8383
January 2001
GENERAL DESCRIPTION
PIN CONFIGURATION (Top View)
The HI-8382 and HI-8383 bus interface products are silicon
gate CMOS devices designed as a line driver in accordance with
theARINC 429 busspecifications.
4
3
2
1
28 27 26
Inputs are provided for clocking and synchronization. These
signals are AND'd with the DATA inputs to enhance system
performance and allow the HI-8382 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
andCMOS compatibility.
5
6
25
24
23
22
21
20
19
N/C
DATA (A)
N/C
CLOCK
N/C
HI-8382J
7
DATA (B)
C B
8
N/C
28 - PIN
PLASTIC
PLCC
9
C A
N/C
The differential outputs of the HI-8382 are independently
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. The
HI-8382 has on-chip Zener diodes in series with a fuse to each
differential output protecting the ARINC bus from an overvoltage
failure. Theoutputseach have a series resistance of 37.5ohms.
The HI-8383 is identical to the HI-8382 except that the series
resistors are 13 ohms and the overvoltage protection circuitry
hasbeeneliminated.
10
11
N/C
N/C
N/C
N/C
12 13 14 15 16 17 18
(See Page 4-46 for additional package pin configurations)
FUNCTION
The HI-8382 and HI-8383 are intended for use where logic
sig nals must be converted to ARINC 429 levels such as a user
ASIC or the HI-8282 ARINC 429 Serial Transmitter/Dual
Receiver or the HI-6010 ARINC 429 Transmitter/Receiver. Holt
products are readily available for both industrial and military
applications. Please contact the Holt Sales Department for
additional information, including data sheets for the HI-8282 and
HI-6010 products.
+
HI-8382
ARINC 429 DIFFERENTIAL LINE DRIVER
FEATURES
! Low powe r CMOS
TRUTH TABLE
SYNC CLOCK DATA(A) DATA(B) AOUT BOUT COMMENTS
! TTLa nd CMOS c om pa tible inputs
! Progra m m a ble output volta ge swing
! Adjusta ble ARINC rise a nd fa ll tim e s
! Ope ra te s a t da ta ra te s up to 100 Kbits
! Ove rvolta ge prote c tion
X
L
L
X
X
L
X
X
L
0V
0V
0V
0V
0V
0V
NULL
NULL
NULL
LOW
X
H
H
H
H
H
H
H
H
L
H
L
-VREF +VREF
+VREF -VREF
H
H
HIGH
NULL
! Industria l a nd Milita ry te m pe ra ture ra nge s
! DSCC SMD pa rt num be r
H
0V
0V
HOLT INTEGRATED CIRCUITS
1
(DS8382 Rev. A)
01/01
HOLTIC [ HOLT INTEGRATED CIRCUITS ]
