HI-8282APQI Holt Integrated Circuits, HI-8282APQI Datasheet

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HI-8282APQI

Manufacturer Part Number
HI-8282APQI
Description
Manufacturer
Holt Integrated Circuits
Datasheet

Specifications of HI-8282APQI

Operating Temperature (min)
-40C
Operating Temperature Classification
Industrial
Operating Temperature (max)
85C
Package Type
PQFP
Rad Hardened
No
Lead Free Status / Rohs Status
Not Compliant
APPLICATIONS
GENERAL DESCRIPTION
The HI-8282A is a silicon gate CMOS device for interfacing
the ARINC 429 serial data bus to a 16-bit parallel data bus.
Two receivers and an independent transmitter are
provided. The receiver input circuitry and logic are
designed to meet the ARINC 429 specifications for loading,
level detection, timing, and protocol.
section provides the ARINC 429 communication protocol.
Additional interface circuitry such as the Holt HI-8585,
HI-8586 or HI-3182 is required to translate the 5 volt logic
outputs to ARINC 429 drive 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.
Timing of all the circuitry begins with the master clock input,
CLK. For ARINC 429 applications, the master clock
frequency is 1 MHz.
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-8282A 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.
(DS8282A Rev. G)
(
February 2009
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Avionics data communication
Serial to parallel conversion
Parallel to serial conversion
The transmitter
HOLT INTEGRATED CIRCUITS
www.holtic.com
Serial Transmitter and Dual Receiver
FEATURES
PIN CONFIGURATION
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ARINC specification 429 compliant
Alternate source to Intersil HS-3282 in all
ARINC 429 applications
Automatic transmitter data timing
specification 429
Small footprint 44-pin QFP package option
16-Bit parallel data bus
Direct receiver interface to ARINC bus
Timing control 10 times the data rate
Selectable data clocks
8 word transmit FIFO
Receiver error rejection per ARINC
Self test mode
Parity functions
Low power, single 5 volt supply
Industrial & extended temperature ranges
BD15 - 7
BD14 - 8
BD13 - 9
BD12 - 10
BD11 - 11
D/R1
D/R2
EN1
EN2
SEL - 4
N/C - 1
- 2
- 3
- 5
- 6
44-Pin Plastic Quad Flat Pack (PQFP)
(See page 10 for additional Package Pin Configurations)
HI-8282APQM
HI-8282APQT
HI-8282APQI
HI-8282A
ARINC 429
(Top View)
33 - N/C
32 - N/C
31 -
30 - ENTX
29 -
28 - 429DO
27 - TX/R
26 -
25 -
24 - BD00
23 - BD01
CWSTRX
429DO
PL2
PL1
02/09

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HI-8282APQI Summary of contents

Page 1

... BD15 - 7 BD14 - 8 BD13 - 9 BD12 - 10 BD11 - 11 44-Pin Plastic Quad Flat Pack (PQFP) HOLT INTEGRATED CIRCUITS www.holtic.com HI-8282A ARINC 429 (Top View N N HI-8282APQI 30 - ENTX 29 - HI-8282APQT 28 - 429DO 27 - TX/R HI-8282APQM BD00 23 - BD01 (See page 10 for additional Package Pin Configurations) CWSTRX 429DO PL2 PL1 ...

Page 2

... Latch enable for byte 1 entered from data bus to transmitter FIFO. Latch enable for byte 2 entered from data bus to transmitter FIFO. Must follow Transmitter ready flag. Goes low when ARINC word loaded into FIFO. Goes high after transmission and FIFO empty. "ONES" data output from transmitter. ...

Page 3

... This option is especially useful in applications where lightning protection circuitry is also required. Each side of the ARINC bus must be connected through a 10K to 15K ohm series resistor in order for the chip to detect the correct ARINC COMPARATORS levels. The typical 10 volt differential signal is translated and input to a window comparator and latch ...

Page 4

... When the receive sig- nal is outside the differential voltage range defined for any shift register, a low bit is clocked. Only one shift register can clock a high bit for any given sample. All three registers clock low bits if the differential input voltage is between de- fined state voltage bands ...

Page 5

... DATA BUS HI-8282A BD12 control word bit is set low, the 32nd bit transmitted will make parity odd. If the control bit is high, the parity is even. SELF TEST If the BD05 control word bit is set low, 429DO or internally connected to the receivers inputs, bypassing the interface circuitry ...

Page 6

... SEL input. During repeater operation however, data word lower byte must always be PL1 at the same time as read first. While the data is being read loading concurrently SEL is into the Transmit FIFO, which always loads lower byte first. DATA RATE - EXAMPLE PATTERN ...

Page 7

... ENTX t ENDAT 429DO or 429DO 429DI BIT 32 D D/R D/REN EN t SELEN SEL DON'T CARE t ENPL PL1 PL2 TX/R ENTX 429DO HI-8282A TRANSMITTER OPERATION BYTE 1 VALID t DWSET t DWHLD PL12 TRANSMITTING DATA ARINC BIT DATA DATA BIT 1 BIT 2 REPEATER OPERATION TIMING t END ENEN ...

Page 8

... Input Source I IL Differential C Pins GND Vcc C H Input Voltage Input Voltage Input Sink I IH Input Source ENTX, CWSTR , CLK & MR Input Voltage Input Voltage Input Sink I IH Input Source I IL 429DO & TX CLK Output Sink Output Source OUT Output Sink I V ...

Page 9

... Setup - DATA BUS Valid to Hold - Delay - TRANSMISSION TIMING Spacing - Delay - ENTX HIGH to TXA(OUT) or TXB(OUT): High Speed Delay - ENTX HIGH to TXA(OUT) or TXB(OUT): Low Speed Delay - 32nd ARINC Bit to TX/R HIGH Spacing - TX/R HIGH to ENTX L0W REPEATER OPERATION TIMING Delay - TX/R LOW to ENTX HIGH ...

Page 10

... REC.2 DATA FLAG D/R2 ) (REC. BYTE SELECT) SEL ( REC. 1 OUTPUT ENABLE ) EN1 ( REC. 2 OUTPUT ENABLE ) EN2 BD15 BD14 BD13 BD12 BD11 BD10 BD09 BD08 BD07 BD06 HI-8282ACDI / CDT / CDM HOLT INTEGRATED CIRCUITS MASTER RESET ) CLK (XMIT CLOCK OUT CLK (MASTER CLK IN ...

Page 11

... TO +125° -55°C TO +125°C M PACKAGE DESCRIPTION CD 40 PIN CERAMIC SIDE BRAZED DIP (40C) 44 PIN J-LEAD CERQUAD (44U PIN CERAMIC LEADLESS CHIP CARRIER (44S) CL INPUT SERIES RESISTANCE BUILT-IN REQUIRED EXTERNALLY 35 Kohm -10 25 Kohm 10K to 15K ohm (Note 1) LEAD FINISH ...

Page 12

... REVISION HISTORY Revision Date Description of Change DS8282A, Rev. G 02/01/09 Clarified the “T” temperature range. Clarified series resistance values for “-10” devices. HI-8282A HOLT INTEGRATED CIRCUITS 12 ...

Page 13

... Standard 95) 44-PIN J-LEAD CERQUAD .650 ±.010 (16.510 ±.254) SQ. .039 ±.005 (.990 ±.127) .019 ±.002 (.483 ± .051) HI-8282A PACKAGE DIMENSIONS 2.020 max (51.308) .595 ±.010 (15.113 ±.254) .050 typ (1.270) .085 ±.009 (2.159 ± ...

Page 14

... SQ. See Detail A .063 MAX. (1.6) BSC = “Basic Spacing between Centers” is theoretical true position dimension and has no tolerance. (JEDEC Standard 95) HI-8282A PACKAGE DIMENSIONS PIN NO. 1 IDENT .045 x 45° .653 ±.004 (16.586 ±.102) SQ. See Detail A .610 ±.020 (15.494±.508) .394 ± ...

Page 15

... CERAMIC LEADLESS CHIP CARRIER .020 INDEX PIN 1 (.508) .651 ±.011 (16.535 ±.279) SQ. BSC = “Basic Spacing between Centers” is theoretical true position dimension and has no tolerance. (JEDEC Standard 95) HI-8282A PACKAGE DIMENSIONS .040 x 45° 3 PLCS (1.016 x 45°) .075 ±.004 (1.905 ± ...

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