HI-8599 Datasheet, PDF (1/12 Pages) Holt Integrated Circuits – ARINC 429 LINE DRIVER AND DUAL RECEIVER

June 2006
HI-8599
ARINC 429 LINE DRIVER AND DUAL RECEIVER
GENERAL DESCRIPTION
The HI-8599 from Holt Integrated Circuits is a silicon gate
CMOS device for interfacing a 16-bit parallel data bus
directly to the ARINC 429 serial bus. This device provides
two receivers, an independent transmitter and line driver
capability in a single package. The receiver input circuitry
and logic are designed to meet the ARINC 429
specifications for loading, level detection, timing, and
protocol. The transmitter section provides the ARINC 429
communication protocol and the line driver circuits
provide the ARINC 429 output levels.
The 16-bit parallel data bus exchanges the 32-bit ARINC
data word in two steps when either loading the transmitter
or interrogating the receivers. The data bus interfaces
with CMOS and TTL.
The HI-8599 provides the option to bypass most of the
internal output resistance so that external series
resistance may be added for lighting protection and still
match the 75 ohm characteristic impedance of the ARINC
bus.
Each independent receiver monitors the data stream with
a sampling rate 10 times the data rate. The sampling rate
is software selectable at either 1MHz or 125KHz. The
results of a parity check are available as the 32nd ARINC
bit. The HI-8599 examines the null and data timings and
will reject erroneous patterns. For example, with a 125
KHz clock selection, the data frequency must be between
10.4 KHz and 15.6 KHz.
The transmitter has a First In, First Out (FIFO) memory to
store 8 ARINC words for transmission. The data rate of
the transmitter is software selectable by dividing the
master clock, CLK, by either 10 or 80. The master clock is
used to set the timing of the ARINC transmission within the
required resolution.
APPLICATIONS
! Avionics data communication
! Serial to parallel conversion
! Parallel to serial conversion
FEATURES
! ARINC specification 429 compliant
! Direct receiver and transmitter interface to
ARINC bus in a single device
! 16-Bit parallel data bus
! Timing control 10 times the data rate
! Selectable data clocks
! Receiver error rejection per ARINC
specification 429
! Automatic transmitter data timing
! Self test mode
! Parity functions
! Low power
! Industrial & full military temperature ranges
PIN CONFIGURATION (Top View)
429DI2(B) - 1
D/R1 - 2
D/R2 - 3
SEL - 4
EN1 - 5
EN2 - 6
BD15 - 7
BD14 - 8
BD13 - 9
BD12 - 10
BD11 - 11
HI-8599PQI
&
HI-8599PQT
33 - ENTX
32 - N/C
31 - V+
30 - TXB(OUT)
29 - TXA(OUT)
28 - V-
27 - GND
26 - TX/R
25 - PL2
24 - PL1
23 - BD00
44-Pin Plastic Quad Flat Pack (PQFP)
(See page 12 for additional pin configurations)
(DS8599 Rev. NEW)
HOLT INTEGRATED CIRCUITS
www.holtic.com
06/06