Datasheet HI-8683PST, HI-8683PSI-10, HI-8683PSI, HI-8683PJT, HI-8683PJI-10 Datasheet (HOLT)

HI-8683,HI-8684

ARINCINTERFACEDEVICE

ARINC429&561SerialDatato8-BitParallelData

DESCRIPTION

TheHI-8683andHI-8684aresystemcomponentsfor
interfacingincomingARINC429signalsto8-bitparallel
datausingproven+5Vanalog/digitalCMOStechnology.
TheHI-8683isadigitaldevicethatrequiresanexternal
analoglinereceiversuchastheHI-8482orHI-8588
betweentheARINCbusandthedeviceinputs.TheHI-8684
incorporatesthedigitallogicandanaloglinereceiver
circuitryinasingledevice.

TheHI-8683isalsoavailableasasecondsourcetothe
DLS-11218pinDIPand28pinPLCC
packagepinouts.

ThereceiversontheHI-8684connectdirectlytotheARINC
429Busandtransl atetheincomingsignalstonormalCMOS
levels.Internalcomparatorlevelsaresetjustbelowthe
standard6.5voltminimumdatathresholdandjustabovethe
standard2.5voltmaximumnullthreshold.The-10version
oftheHI-8684allowstheincorporationofanexternal10K
resistanceinserieswitheachARINCinputforlightning
protectionwithoutaffectingARINCleveldetection.

Bothproductsofferhighspeed8-bitparallelbusinterface,a
32-bitbuffer,anderrordetectionforwordlengthandparity.
Aresetpinisalsoprovidedforpower-oninitialization.

withtheoriginal

Ω

!

!

AutomaticconversionofserialARINC429,575&
561datato8-bitparalleldata

Highspeedparallel8-bitdatabus
Errordetection-and

On-chiplinereceiveroption(HI-8684)
Inputhysteresisofatleast2volts(HI-8684)

Testinputsbypassanaloginputs(HI-8684)

Simplifiedlightningprotectionwiththeabilitytoadd
10Kohmexternalseriesresistors(HI-8684-10)

Plasticpackageoptions-surfacemount(SOIC),
PLCCandDIP

Militaryprocessingavailable

!

!

!

!

!

!

!

!

wordlengthparity

Resetinputforpower-oninitialization

FEATURES

PINCONFIGURATIONS (TopView)

January2001

DATARDY

D7
D6
D5
D4
D3
D2
D1
D0

HI-8684PSI

HI-8684PST

&

HI-8684PSI-10

HI-8684PST-10

1
2
3
4
5
6
7
8
9

10

(Seepage8foradditionalpinconfigurations)

1
2
3
4
5
6
7
8
9

1
2
3
4
5
6
7
8
9

18
17
16
15
14
13
12
11
10

20
19
18
17
16
15
14
13
12
11

HI-8683

18-PinPlasticSOIC-WBPackage

HI-8684

20-PinPlasticSOIC-WBPackage

HI-8683PSI

HI-8683PST

Vcc
GAPCLK

INB
INA
ERROR
PARITYENB

GND

RESET

READ

GAPCLK
TESTA
TESTB

RINB(-10)
RINA(-10)
ERROR
PARITYENB

GND

RESET

READ

Vcc

DATARDY

D7
D6
D5
D4
D3
D2
D1
D0

HOLTINTEGRATEDCIRCUITS

1(DS8683Rev.D)01/01

HI-8683,HI-8684

PINDESCRIPTIONS

DATARDYOUTPUTReceiverdatareadyflag.Ahighlevelindicatesdataisavailableinthereceive

buffer.Flaggoeslowwhenthefirst8-bitbyteisread.

D1toD7OUTPUT8-bitparalleldatabus(tri-state)

GNDPOWER0V

INPUTReadstrobe.Alowleveltransfersreceivebufferdatatothedatabus

PARITYENBINPUTParityEnable-Ahighlevelactivatesoddparitycheckingwhichreplacesthe

32ndARINCbitwithanerrorbit.Otherwise,the32ndARINCbitisunchanged

ERROROUTPUTErrorFlag.Ahighlevelindicatesabitcounterror(numberofARINCbitswas

lessthanorgreaterthan32)and/oraparityerr orifparitydetectionwasenabled

(PARITYENBhigh)
INAINPUTPositivedigitalserialdatainput(HI-8683only)
INBINPUTNegativedigitalserialdatainput(HI-8683only)

RINA/RINA-10INPUTPositivedirectARINCserialdatainput
RINB/RINB-10INPUTNegativedirectARINCserialdatainput(HI-8684&HI-8684-10only)

INPUTInternallogicstatesareinitializedwithalowlevel

TESTAINPUTUsedinconjunctionwiththeTESTBinputtobypassthebuilt-inanalogline

receivercircuitry

TESTBINPUTU

GAPCLKINPUTGapClock.DeterminestheminimumtimerequiredbetweenARINCwordsfor

dete ction.Theminimumwordgaptimeisbetween16and17clockcyclesof

thissignal.
VccPOWER+5V±10%supply

SIGNALFUNCTIONDESCRIPTION

READ

RESET

(HI-8684&HI-8684-10only)

(HI-8684&HI-8684-10only)

sedinconjunctionwiththeTESTAinputtobypassthebuilt-inanalogline

receivercircuitry(HI-8684&HI-8684-10only)

HOLTINTEGRATEDCIRCUITS

2

FUNCTIONALDESCRIPTION

TheHI-8683andHI-8684areserialto8-bitparallelconvert­ers.Theincomingdatastreamisseriallyshiftedintoaninput
register,checkedforerrors,andthentransferredinparallelto
a32-bitreceivebuffer.Thereceivedatacanbeaccessedus­ingfour8-bitparallelreadoperationswhilethenextserial
datasteamisbeingreceived.

Figure1isablockdiagramofboththeHI-8683andHI-8684.
ThedifferencebetweenthetwoproductsistheHI-8684has
abuilt-inlinereceiverwhereastheHI-8683isstrictlyadigital
deviceandrequiresanexternalARINClinereceiversuchas
theHolt HI-8482,HI-8588orHI-8590tointerfacetothe
ARINC429bus.

RECEIVERINPUTS

HI-8684LineReceiver

Typically35KresistorsareinserieswithboththeRINAand
RINBARINC429inputs.Theyconnecttoleveltranslators
whoseresistancetoGNDistypically10KAfterleveltrans­lation,thebufferedinputsdriveadifferentialamplifier.The
differentialsignaliscomparedtolevelsderivedfromadivider
betweenVCCandGND.Thenominalsettingscorrespondto
aOne/Zeroamplitudeof6.0VandaNullamplitudeof3.3V.A
validARINCOne/ZeroinputsetsalatchandaNullinputre­setsthelatch.

Sinceanyaddedexternalseriesresistancewillaffectthevolt­agetranslation,theHI-8684-10i savailablewith25Kofthe
35KseriesresistancerequiredforproperARINC429level
detection.Theremaining10Krequiredthatmustbeadded
canbeincorporatedinotherexternalcircuitrysuchaslight­ningprotection.Exceptforthedifferentinputseriesresis­tance,theHI-8684andHI-8684-10areidentical.

Ω

Ω.

Ω

Ω

Ω

HI-8683,HI-8684

HOLTINTEGRATEDCIRCUITS

3

PROTOCOLDETECTION

ARINCclockanddataintheHI-8683arederivedfromthe
twostreamsofdigitaldataattheINAandINBinputsandthe
resultingOne/Zerodataisshiftedintoa32-bitinputregister
asillustratedinFigure3.

IntheHI-8684,theOne/Zerodatashiftedintotheinputreg­isteriscreatedfromeitherthetwodigitaloutputsofthebuilt­inlinereceiver(Figure3)ortheTESTAandTESTBinputs
(Figure4).

ForARINC561operation,theINAandINBdatastreamsin­putsmustbederivedfromtheARINC561data,clockand
syncwithexternallogic.

GAPDETECTION

Theendofadatawordisdetectedbyaninternalcounter
thattimesoutwhenadataOneorZeroisnotreceivedfora
periodequalto16cyclesoftheGAPCLKsignal.Thegap
detectiontimemayvarybetween16and17cyclesofthe
GAPCLKsignalsincetheincomingdataandGAPCLKare
notusuallysynchronousinputs.Therequiredfrequencyof
GAPCLKisafunctionofthemininumgaptimespecifiedfor
thetypeofARINCdatabeingreceived.Table1indicates
typicalfrequenciesthatmaybeusedforthevariousdata
ratesnormallyencountered.

BIT

COUNT

PARITY

DETECT

GAP

DETECT

32-BIT
SHIFT

REG.

32-BIT

RECEIVE

BUFFER

32-BIT

TO

8-BIT

MUX

ERROR

DETECT

CLOCK

&

DATA

DETECT

HI-8683ONLY

HI-8684ONLY

INA

PARITY

ENB

INB

RINB

TESTA
TESTB

GAPCLK

RESET

BYTE

COUNT

READ

DATARDY

ERROR

32 8

32

Figure1.BlockDiagram

ESD

PROTECTION

&

LINE

RECEIVER

ESD

PROTECTION

DATABUSBITPERIODMINIMUMGAPGAPCLOCKGAPDETECTION

TYPE(s)(s)MHzTIME(s)µµµ

42910450.7521.3-22.7

1.016-17

1.510.7-11.3
42969-133310-5990.1160-170
57569-133310-5990.1160-170
56169-133103-2000.280-85

Table1-TypicalGapDetectionTimes

FUNCTIONALDESCRIPTION(cont.)

RXA

RXB

10K Ω

BIT32

BIT32

RINA

D0-D7

DATA

CLK

RINB-10

RINA-10

10K Ω

25K Ω

25K Ω

HI-8683,HI-8684

HOLTINTEGRATEDCIRCUITS

4

ERRORCHECKING

READINGRECEIVEBUFFER

Onceawordgapisdetected,thedatawordintheinputreg­isteristransferredtothereceivebufferandcheckedforer­rors.

Whenparitydetectionisenabled(PARITYENBhigh),the
receivedwordischeckedforoddparity.Ifthereisaparity
error,the32ndbitofthereceiveddatawordissethigh.

Ifparitycheckingisdisabled(PARITYENBlow)the32nd
bitofthedatawordisalwaysthe32ndARINCbitreceived.

TheERRORflagoutputissethighuponreceiptofaword
gapandthenumberofbitsreceivedsincetheprevious
wordgapislessthanorgreaterthan32.TheERRORflag
isresetlowwhenthenext validARINCwordiswritteninto
thereceivebufferorwhenispulsedlow.

Whenthedatawordistransferredtothereceivebuffer,the
DATARDYpingoeshigh.Thedatawordcanthenberead
infour8-bitbytesbypulsingtheinputlowasindi­catedinFigure5.ThefirstreadcycleresetsDATARDY
lowandincrementsaninternalcountertothenext8-bit
byte.Thecountercontinuestoincrementoneachreadcy­cleuntilallfourbytesareread.Therelationshipbetween
eachbitofanARINCwordreceivedandeachbitofthefour
8-bitdatabusbytesisspecifiedinFigure2.

WhenanewARINCwordisreceivedi talwaysoverwrites
thereceivebuffer.Ifthefirstbyteofthepreviouswordhas
notbeenread,thenpreviousdataislostandthereceive
bufferwillcontainthenewARINCword.However,ifthe
DATARDYpingoeshighbetweenthereadingofthefirst
andfourthbytes,thepreviousreadbytesarenolonger
validbecausetheunreadbyteshavebeenoverwrittenby
thenewARINCword.Also,thenextreadwillbeofthefirst
byteofthenewARINCwordsincetheinternalbytecounter
isalwaysresettothefirstbytewhennewdataistrans­ferredtothereceivebuffer.

RESET

READ

FUNCTIONALDESCRIPTION(cont.)

TRUTHTABLE1.

RINARINBTESTATESTBRXARXB

-1.50to+1.50V-1.50Vto+1.50V0000

-3.25Vto-6.50V+3.25Vto+6.50V0001

+3.25Vto+6.50V-3.25Vto-6.50V0010

XX0101
XX1010

XX1100

X=don'tcare

ReadByteDataBusBitsARINCBits

1stByte1D0-D7ARINC1-ARINC8

2ndByte2D0-D7ARINC9-ARINC16

3rdByte3D0-D7ARINC17-ARINC24
4thByte4D0-D7ARINC25-ARINC32

FIGURE2.ORDEROFRECEIVEDDATA

RESET

TESTMODE(HI-8684only)

Alowontheinputsetsaflip-flopwhichinitializes
theinternallogic.Whengoeshigh,theinternal
logicremainsintheinitializedstateuntilthefirstwordgapis
detectedpreventingreceptionofapartialword.

Thebuilt-indifferentiallinereceiverontheHI-8684canbe
disabledallowingthedataandclockdetectioncircuitryto
bedrivendirectlywithdigitalsignals.ThelogicalORfunc­tionoftheTESTAandTESTBisdefinedinTruthTable1.
Thetwoinputscanbeusedfortestingthereceiverlogicand
forinputtingARINC429typedataderivedfromanother
source/protocol.SeeFig ure4fortypicaltestinputtiming.

Thedeviceshouldalwaysbeinitializedwithimme­diatelyafterenteringthetestmodetoclearapartialword
thatmayhavebeenreceivedsincethelastwordgap.Oth­erwise,anERRORconditionmayoccurandthefirst32
bitsofdataonthetestinputsmaynotbeproperlyre­ceived.

Also,whenenteringthetestmode,bothTESTAand
TESTBshouldbesethighandheldinthatstateforat
leastonewordgapperiod(17gapclocks)after
goeshigh.

Whenexitingthetestmode,bothtestinputsshouldbeheld

lowandthedeviceinitializedwith

RESET

RESET

RESET

RESET

RESET.

HOLTINTEGRATEDCIRCUITS

5

HI-8683,HI-8684

ARINCDataBitsWordGap

2829303132124BitPeriodsMin.

INA(HI-8683only)

INB(HI-8683only)

VDIFF

RINA-RINB

(HI-8684only)

DERIVEDDATA

DERIVEDCLOCK

0V

0V

+5V

0V

+10V

+5V

-10V

TIMINGDIAGRAMS

FIGURE3-RECEIVERINPUTTIMINGFORARINC429

FIGURE5-RECEIVERPARALLELDATABUSTIMING

DATARDY

READ

D0-D7

VALID

t

RDYCLR

t

RDPW

t

RR

t

FD

t

RD

VALID VALID VALID

1st8-bits 2nd8-bits 3rd8-bits 4th8-bits

t

DRDY

DERIVEDDATA

32nd

ARINCBit

FIGURE4-TESTINPUTTIMINGFORARINC429

ARINCDataBitsWordGap

2829303132124BitPeriodsMin.

TESTA

+5V

0V

TESTB

0V

+5V

DERIVEDCLOCK

DERIVEDDATA

PARAMETERSSYMBOLTESTCONDITIONSMINTYPMAXUNITS
ARINCBusInputs (RINA&RINB,HI-8684only)

Differentialinputvoltage

oneorzeroVdifferentialvoltage6.510.013.0volts
nullV""""--2.75volts
commonmodeVwithrespecttoGND--5.0volts

Inputresistance

RINA(-10)toRINB(-10)Rsuppliesfloating3075-Kohm
RINA(-10)orRINB(-10)toGNDorVR"""'1940-Kohm

Inputcapacitance(Guaranteedbutnottested)

differentialCRINAtoRINB--20pF
toGNDC--20pF
toVC--20pF

DIN
NIN

COM

DIFF

CCSUP

DIFF

G

CCH

SupplyVoltages

V.................................................+5V

TemperatureRange

IndustrialScreening..............-40°Cto+85°C

Hi-TempScreening..............-55°Cto+125°C

MilitaryScreening..................-55°Cto+125°C

JunctionTemperature,Tj....................175°C

CC ±10%

≤+

AllvoltagesreferencedtoGND
Supplyvoltages

V.......................................................+7.0V

Voltageoninputs

RINA(-10)toRINB(-10).........+29Vto-29V

Allotherinputpins..................-0.3toVcc+0.3

DCcurrentperinputpin.......................+10mA

Powerdissipationat25°C

plastic18-pinSO.....1.9W,derate15.4mW/°C

plastic18-pinDIP.....1.6

plastic20-pinSO......1.4

plastic20-pinPLCC.2.0
SolderTemperature

Leads................................+280°Cfor10sec

Packagebody.....................................+2 20°C

StorageTemperature.............-65°Cto+150°C

CC

W,derate13.3mW/°C

W,derate11.5mW/°C

W,derate17.2mW/°C

NOTE:Stressesaboveabsolutemaximum
ratingsoroutsiderecommendedoperating
conditionsmaycausepermanentdamageto
thedevice.Thesearestressratingsonly.
Operationatthelimitsisnotrecommended.

ABSOLUTEMAXIMUMRATINGS

RECOMMENDEDOPERATINGCONDITIONS

Vcc=5V,GND=0V,TA=OperatingTemperatureRange(unlessotherwisespecified).

DCELECTRICALCHARACTERISTICS

HI-8683,HI-8684

HOLTINTEGRATEDCIRCUITS

6

Vcc=5V,GND=0V,TA=OperatingTemperatureRange(unlessotherwisespecified).

HI-8683,HI-8684

HOLTINTEGRATEDCIRCUITS

7

DCELECTRICALCHARACTERISTICS(cont.)

PARAMETERSSYMBOLTESTCONDITIONSMINTYPMAXUNITS
DigitalInputs

Outputs

OperatingSupplyCurrent

(INA,INB,,GAPCLK,,PARITYENA,TESTA&TESTB)

Inputvoltage

highV2.0-V
lowV0.0-0.8volts

Inputcurrent

source--1.0
sink-1.0--

InputcapacitanceC--8.0pF

(D0toD7,ERROR&DATARDY)

Outputvoltage

high
lowI=1.6mA--0.4volts

Outputtri-statecurrent(D0-D7only)

V=5.0V--1.0A
V=0.0V-1.0--

Outputcapacitance--15pF

V(HI-8683only)IV=0.0V,outputsopen--0.2m
V(HI-8684only)IV=0.0V,outputsopen--6.5m

RESETREAD

IHCC
IL

I

OL

OH
OL

CCCC1IN

CCCC2IN

µ

volts

IV=5.0VA
IV=0.0VA

VI=-1.0mA2.7--volts
V

I
IA

C

A
A

IHIN
ILIN

OHOH

OL

IH
IL

O

µ
µ

µ

PARAMETERSSYMBOLTESTCONDITIONSMINTYPMAXUNITS

pulsewidtht50ns

Datadelayfromt20ns

todatafloatingt20ns
toDATARDYcleart25ns

pulsetonextpulset25ns
GAPCLKfrequencyf1MHz
32ARINCbittoDATARDYt1617clocks

READ

READ
READ
READ
READREAD

RDPW

RD

FD

RDYCLR

RR

GC

DRDY

ACELECTRICALCHARACTERISTICS

Vcc=5V,GND=0V,TA=OperatingTemperatureRange(unlessotherwisespecified).

HI-8683&HI-8684PINCONFIGURATIONS

(Seepage1foradditionalpinconfigurations)

HI-8683,HI-8684

HOLTINTEGRATEDCIRCUITS

8

HI-8683PJI

HI-8683PJT

18-N/A
17­16-INB
15-INA
14-ERROR

RESET

D6-4
D5-5
D4-6
D3-7
D2-8

V
GAPCLK

INB
INA
ERROR

PARITY

ENB

D0

CC

RESET

READ

DATA

RDY

D6
D7
D5
D4
D3
D2
D1

GND

1
2
3
4
5
6
7
8
9

18
17
16
15
14
13
12
11
10

HI-8683PDI

HI-8683PDT

HI-8684PJI

HI-8684PJT

&

HI-8684PJI-10

HI-8684PJT-10

18-TESTB
17­16-RINB(-10)
15-RINA(-10)
14-ERROR

RESET

D6-4
D5-5
D4-6
D3-7
D2-8

HI-8683

20-PinPlasticPLCC

HI-8684

20-PinPlasticPLCC

HI-8683

18-PinPlasticDIP

ORDERINGINFORMATION

HI-8683PDI18PINPLASTICDIPNONO-40°CTO+85°CINOSOLDER
HI-8683PDT18PINPLASTICDIPNO-55°CTO+125°CTNOSOLDER
HI-8683PJI20PINPLASTICPLCCNO

BUILT-IN
PARTPACKAGELINE10KRES.TEMPERATUREBURNLEAD
NUMBERDESCRIPTIONRECV'RREQUIREDRANGEFLOWINFINISH

Ω

NO

NO-40°CTO+85°CINOSOLDER
HI-8683PJT20PINPLASTICPLCCNONO-55°CTO+125°CTNOSOLDER
HI-8683PSI18PINPLASTICSOIC-WBNONO-40°CTO+85°CINOSOLDER
HI-8683PST18PINPLASTICSOIC-WBNONO-55°CTO+125°CTNOSOLDER
HI-8684PJI20PINPLASTICPLCCYESNO-40°CTO+85°CINOSOLDER
HI-8684PJT20PINPLASTICPLCCYESNO-55°CTO+125°CTNOSOLDER
HI-8684PSI20PINPLASTICSOIC-WBYESNO-40°CTO+85°CINOSOLDER
HI-8684PST20PINPLASTICSOIC-WBYESNO-55°CTO+125°CTNOSOLDER
HI-8684PJI-1020PINPLASTICPLCCYESYES-40°CTO+85°CINOSOLDER
HI-8684PJT-1020PINPLASTICPLCCYESYES-55°CTO +125°CTNOSOLDER
HI-8684PSI-1020PINPLASTICSOIC-WBYESYES-40°CTO+85°CINOSOLDER
HI-8684PST-1020PINPLASTICSOIC-WBYESYES-55°CTO+125°CTNOSOLDER

Legend:WB-WideBody

°

.454±.008

(11.531±.203)

.4065±.0125

(10.325±.318)

.293±.006

(7.442±.152)

.050

(1.27)

0°to8°

.033±.017

(.838±.432)

.090±.010

(2.286±.254)

.0075±.0035

(.191±.089)

TYP

.018

(.457)

TYP

SEEDETAILA

DETAILA

PackageType:

18-PINPLASTICSMALLOUTLINE(SOIC)-WB

(WideBody)

18HW

.0105±.0015

(.2667±.0381)

.905 ± .015

(22.99 ± .381)

.300 ± .010

(7.62 ± .254)

.335±.035

(8.509 ± .889)

0 ° ~15

.135 ± .015

(3.429 ± .381)

.100 ± .010

(2.540 ± .254)

.055 ± .010

(1.397 ± .254)

.019 ± .004

(.483 ± .102)

.130 ± .020

(3.302 ± .508)

.160 ± .025

(4.064 ± .635)

.250 ± .010

(6.350 ± .254)

7 ° TYP.

.0115±.0035

(.2921±.0889)

HI-8683,HI-8684PACKAGEDIMENSIONS

inches(millimeters)

HOLTINTEGRATEDCIRCUITS

9

PackageType:

18-PINPLASTICDIP

18P

.5035±.0075

(12.789±.191)

.4065±.0125

(10.325±.318)

.296±.003

(7.518±.076)

0°to8°

.090±.010

(2.286±.254)

.0075±.0035

(.191±.089)

.050

(1.27)

TYP

.018

(.457)

TYP

SEEDETAILA

DETAILA

.033±.017

(.838±.432)

PackageType:

20-PINPLASTICSMALLOUTLINE(SOIC)-WB

(WideBody)

20HW

.0105±.0015

(.2667±.0381)

.152±.002

(.3.861±.051)

PINNO.1IDENT

.045x45°

.354 ± .002

(8.991 ± .051)

.390 ± .005

(9.906 ± .127)

SQ.

SQ.

SEEDETAIL

A

.017 ± .004

(.432 ± .102)

DETAILA

.020MIN

(.508 ΜΙΝ

.015 ± .002

(.381 ± .051)

.050 ± .003

(1.27 ± .075 )

)

.026±.003x30°

(.660±.076x30°)

.035R

(.889R)

TYP

.010±.0003

(.256±.0076)

.020MIN

(.508MIN)

.320±.010

(8.128±.254)

inches(millimeters)

PackageType:

20-PINPLASTICPLCC

20J

HI-8683,HI-8684PACKAGEDIMENSIONS

HOLTINTEGRATEDCIRCUITS

10