HOLT HI-8783, HI-8784, HI-8785 User Manual

查询HI-8783PDI供应商

January2001

HI-8783,HI-8784,HI-8785

DESCRIPTION

TheHI-8783,HI-8784,andHI-8785aresystemcompo­nentsforinterfacing8bitparalleldatatoanARINC429
bus.TheHI-8783isalogicdeviceonlyandrequiresasep­aratelinedrivercircuit,suchastheHI-8382orHI-8585.
TheHI-8784andHI-8785combinelogicandlinedriveron
onechip.TheHI-8784hasanoutputresistanceof37.5
ohms,andtheHI-8785hasanoutputresistanceof10
ohmstofacilitateexternallightningprotectioncicuitry. The
technologyisanalog/digitalCMOS.

TheHI-8783isavailableina22pinDIPformatasasecond
sourcereplacementfortheMicrel/CaliforniaDevices
DLS-111BV.

Theproductsofferhighspeeddatabusdatatransactions
toabufferregister.Afterloading4bytes,dataisautomati­callytransferredandtransmitted.Thedatarateisequalto
theclockrate.Paritycanbeenabledinthe32ndbit.Reset
isusedtoinitializethelogicuponstartup.Wordgapsare
transmittedautomatically.

TheHI-8784andHI-8785require+/-10voltsuppliesinad­ditiontothe5voltsupply.

PINCONFIGURATIONS

1

VCC

D0
D1
D2
D3
D4
D5
D6
D7

10

2
3

HI-8783PSI

4
5

HI-8783PST

6
7
8
9

&

561SYNC

20-PinPlasticSOIC-WBpackage

20

561DATA

19

DATAZERO

18

DATAONE

17

PARITYENB

16

XMTREADY

15

XMITCLK

14

RESET

13

WRITE

12

A0

11

GND

24

FEATURES

l

l

l

l

l

Automaticallyconverts8bitparalleldata
toARINC429or561data

Highspeeddatabusinterface
On-chiplinedriveroption
SOICpackagesavailable
Militaryprocessingoptions

VCC

561SYNC

GND

1
2
3

D0

HI-8784PSI

4

D1
D2
D3
D4
D5
D6

NC

D7

HI-8784PST

5

HI-8785PSI

6
7
8

9
10
11

12 13

&

HI-8785PST

V+
561DATA

23

TXBOUT

22

TXAOUT

21

V-

20

PARITYENB

19

XMTREADY

18

XMITCLK

17

RESET

16

WRITE

15

SLP1.5

14

A0

24-PinPlasticSOIC-WBpackage

(Seepage7foradditionalpinconfigurations)

HOLTINTEGRATEDCIRCUITS

(DS8783Rev.B)01/01

1

HI-8783,HI-8784,HI-8785

PINDESCRIPTIONS

PINPINPINSYMBOLFUNCTIONDESCRIPTION
HI-8783HI-8783HI-8784
(20-pin)(22-pin)HI-8785

1221VCCpowersupply+5voltrail,
212561SYNCdigitaloutputARINC561Syncsignal

3-102-8,103-9,11DndigitalinputsParallel8bitDataInput

111112GNDpowersupplyGround
121213A0digitalinputByteaddress,A0=1for1stbyte,A0=0for2nd,3rd&4thbytes

--14SLP1.5digitalinputSelectstheslopeofthelinedriver.High=1.5us
131415digitalinputWritestrobe,loadsdataonrisingedge
141516digitalinputRegistersandsequencinglogicinitializedwhenlow
151617XMITCLKdigitalinputClockinputforthetransmitter
161718XMTRDYdigitaloutputGoeshighifthebufferregisterisempty
171819PARITYENBdigitali nputWhenhighthe32ndbitoutputisoddparity

--20V-powersupply-10voltrail
1819-DATAONEdigitaloutputGoeshighforeachARINCbitoutputthatisa“one”
1920-DATAZEROdigitaloutputGoeshighforeachARINCbitoutputthatisa“zero”

--21TXAOUTanalogoutputLinedriverouptut-Aside

--22TXBOUTanalogoutputLinedriveroutput-Bside
202123561DATAdigitaloutputSerialoutputforARINC561data

--24V+powersupply+10voltrail

WRITE
RESET

FUNCTIONALDESCRIPTION

TheHI-8783isaparalleltoserialconverter,whichwhen
loadedwithfoureightbitparallelbytes,outputsthedataas
a32bitserialword.Timingcircuitryinsertsa4bitgapatthe
endofeach32bitword.Aninputbufferregisterallowsload
operationstotakeplacewhilethepreviouslyloadedword
isbeingtransmitted.

IfthePARITYENBpinishigh,the32ndbitwillbeaparity
bit,insertedsoastomakethe32bitwordhaveoddparity.If
thePARITYENBpinislow,the32ndbitwillbetheD7bitof
the4thbyte.

OutputsareprovidedforbothARINC429/575(DATAONE
andDATAZEROpins),andARINC561(5 61DATAand
561SYNCpins)typedata.

AlowsignalappliedtothepinresetstheHI-8783’s
internallogicsothatspurioustransmissiondoesnottake
placeduringpower-up.Theregistersareclearedsothata
continuousgapwillbetransmitteduntilthefirstwordis
loadedintothetransmitter.

RESET

InputdatacanbeloadedwhentheXMTRDYsignalis
high,whichindicatestheinputbufferregisterisempty.The
first8bitbyteisthelabelbyteandisloadedwiththeA0in­puthigh,whichinitializestheinternalbytecounter.There­mainingthreebytesareloadedwithA0inthelowstate.
Each8bitbyteisloadedintotheinputbufferregisterbya
lowpulseontheinput.(Seefigure1).Afterthe

WRITE
fourthbyteisloaded,theXMTRDYoutputgoeslow.The
contentsoftheinputbufferregisteraretransferredtothe
outputregisterduringthefourthbitperiodofthegap.Ifthe
fourthgapbitperiodoft hepreviouswordhasalreadybeen
transmitted,thecontentsoftheinputbufferregisterwillbe
transferredtotheoutputshiftregisterduringthefirstbitpe­riodaftertheloadingofthefourthbyte,andtheXMTRDY
outputgoeshigh.

Aftertheoutputshiftregisterisloaded,thedataisshifted
outtotheoutputlogicintheordershowninfigure2.

The561SYNCoutputpulseslowwhentheXMTCLKislow
duringthe8thbitoftheARINCtransmission.
TheXMITCLKisthesameasthedatarate.

HOLTINTEGRATEDCIRCUITS

2

HI-8783,HI-8784,HI-8785

WRITE

DATA
BUS

XMITCLK

byte

A0

8

counter

8to32bit

mux

32bit
buffer

32 32

register

status&
control

logic

32bit

shift

register

wordgap

counter

bit

counter

PARITYENB

SLP1.5

line

driver

output

logic

XMTRDY

TXAOUT

TXBOUT

HI-8784,HI8785

DATAONE

DATAZERO

HI-8783

561SYNC

561DATA

Figure1.BlockDiagram

FUNCTIONALDESCRIPTION(Cont.)

TheHI-8784andHI-8785havethesamedigitallogicfunc­tionastheHI-8783,butincludeanon-chiplinedriverde­signedtodirectlydrivetheARINC429bus.ThetwoARINC
outputs(TXAOUTandTXBOUT)provideadifferentialvolt­agetoproducea+10voltOne,a-10voltZero,anda0volt
Null.TheslopeoftheARINCoutputsiscontrolledbythe
SLP1.5pin.IfSLP1.5ishigh,theoutputriseandfalltimeis
nominally1.5us.IfSLP1.5issetlow,theriseandfalltimes
are10us.DATAONEandDATAZEROoutputsarenotpro­videdfortheHI-8784andHI-8785.

TheHI-8784has37.5ohmsinserieswitheachlin edriver
output.TheHI-8785has10.0ohmsinseries.TheHI-8785
isforapplicationswhereexternalseriesresistanceis
needed,typicallyforlightningprotectiondevices.

A0ByteDataBusARINCBits

1Byte1D0-D7ARINC1-ARINC8
0Byte2D0-D7ARINC9-ARINC16
0Byte3D0-D7ARINC17-ARINC24
0Byte4D0-D7ARINC25-ARINC32

Figure2.Orderoftransmittedbytes

HOLTINTEGRATEDCIRCUITS

3

XMITCLK

DATAONE

DATAZERO

561DATA

561SYNC

HI-8783,HI-8784,HI-8785

353612345313233343536

LOWDURINGCLK8

XMTCLK

DATAONE

DATAZERO

t

phlx

t

plhx

trxt

10%

t

plhx

t

phlx

t

rx

90%

90%

10%

10%

tt

fx

HOLTINTEGRATEDCIRCUITS

4

5V
0V

5V
0V

10V

0V

-10V

tfxt

HI-8783,HI-8784,HI-8785

ABSOLUTEMAXIMUMRATINGS

VoltagesreferencedtoGround

RECOMMENDEDOPERATINGCONDITIONS

SupplyVoltages

V+.......................................+10V...±5%

Supplyvoltages

V+.................................................12.5V

V-........................................-10V...±5%

VCC.......................................5V...±5%

V-.................................................-12.5V

VCC..................................................7V

TemperatureRange

DCcurrentperinputpin................+10ma

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

Hi-TempScreening........-55°Cto+125°C

Powerdissipationat25°

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

plasticDIL............1.0W,derate10mW/°C

ceramicDIL..........0.5W,derate7mW/°C

NOTE:Stressesaboveabsolutemaximum
ratingsoroutsiderecommendedoperating

SolderTemperature........275°Cfor10sec

conditionsmaycausepermanentdamagetothe
device.Thesearestressratingsonly.Operationat

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

VCC=5.0V,V=0V,T=OperatingTemperatureRange(unlessotherwisespecified).SSA

PARAMETERSYMBOLCONDITIONMINTYPMAXUNITS

OperatingVoltageV4.7555.25V
Min.InputVoltage(HI)V2.01.4V
Max.InputVoltage(LO)V1.40.8V
Min.InputCurrent(HI)IV=4.9V1µA

Max.InputCurrent(LO)IV=0.1V-1µA
Min.OutputVoltage(HI)VI=-1.6mA2.7V
Max.OutputVoltage(LO)VI=1.6mA0.4V
OperatingCurrentDrainIf=100khz0.82.8mA

InputCapacitanceCNottested20pF

CC

IH

IL

IHIH

ILIL

OHOUT

IHOUT

CC

IN

thelimitsisnotrecommended.

VCC=5.0V,V=0V,V+=10V,V-=-10V,T=OperatingTemperatureRange(unlessotherwisespecified).SSA

PARAMETERSYMBOLCONDITIONMINTYPMAXUNITS

OperatingVoltageV+9.51010.5V
OperatingVoltageV--9.5-1010.5V
OperatingCurrentDrain(V+)Inoload,f=100khz620mADD
OperatingCurrentDrain(V-)Inoload,f=100khz-20-6mAEE
LineDriverOutputLevels(Ref.ToGND)
ONEnoload,VCC=5.0V4.55.05.5V
NULL“-0.2500.25V

ZERO“-5.55-5.0-4.5V
LineDriverOutputLevels(Differential)
ONEnoload,VCC=5.0V9.010.011.0V
NULL“-0.500.5V

ZERO“-11.0-10.0-9.0V

MinimumShortCircuitSinkorSourceCurrentImomentarymagnitude80mAOUT

HOLTINTEGRATEDCIRCUITS

5

HI-8783,HI-8784,HI-8785

(HI-8783,HI-8784andHI-8785)

VCC=5.0V,V=0V,T=OperatingTemperatureRange(unlessotherwisespecified).SSA

PARAMETERSYMBOLMINTYPMAXUNITS

DATABUSTIMING

SetupDataBustons
Hold0ns

WRITE
HoldA0to0ns
Pulsewidth40ns
PulsewidthA040ns
Delaylast40ns

WRITE SET

toDataBus

WRITE

WRITE

toXMTRDY

WRITE

t20
t

HLD

t

AH

t

WPW

t

APW

t

XD

HOLTINTEGRATEDCIRCUITS

6

HI-8783,HI-8784,HI-8785

ADDITIONALHI-8783PINCONFIGURATION

561SYNC

GND

D0
D1
D2
D3
D4
D5
D6

NC

D7

1
2
3

HI-8783PDI

4
5

HI-8783PDT

6
7
8

9
10
11

&

22

VCC

21

561DATA

20

DATAZERO

19

DATAONE

18

PARITYENB

17

XMTREADY

16

XMITCLK

15

RESET

14

WRITE

13

NC

12

A0

22PinPlasticDIPpackage

(Seepage1foradditionalpinconfigurations)

ORDERINGINFORMATION

PART
NUMBER

INCLUDES

LINEDRIVER

OUTPUT

RESISTOR

PACKAGE

DESCRIPTION

HI-8783PDI NO22PinPlasticDIP -40°CTO+85°CISOLDER

HI-8783PDTNO22PinPlasticDIP-55°CTO+125°CTSOLDER
HI-8783PSINO20PinPlasticSOIC-WB-40°CTO+85°CISOLDER
HI-8783PSTNO20PinPlasticSOIC-WB-55°CTO+125°CTSOLDER
HI-8784PSIYES37.5ohm24PinPlasticSOIC-WB-40°CTO+85°CISOLDER
HI-8784PSTYES37.5ohm24PinPlasticSOIC-WB-55°CTO+125°CTSOLDER
HI-8785PSIYES10.0ohm24PinPlasticSOIC-WB-40°CTO+85°CISOLDER
HI-8785PSTYES10.0ohm24PinPlasticSOIC-WB-55°CTO+125°CTSOLDER

Legend:WB-WideBody

TEMPERATURE

RANGE

PROCESS

FLOW

LEAD

FINISH

HOLTINTEGRATEDCIRCUITS

7

HI-8783,HI-8784,HI-8785PACKAGEDIMENSIONS

20-PINPLASTICSMALLOUTLINE(SOIC)-WB

(WideBody)

.5035±.0075

(12.789±.191)

PackageType:

.0105±.0015

(.2667±.0381)

inches(millimeters)

20HW

.4065±.0125

(10.325±.318)

22-PINPLASTICDIP

.050

(1.27)

TYP

1.105±.015

(28.067±.381)

.296±.003

(7.518±.076)

.018

TYP

(.457)

0°to8°

.033±.017

(.838±.432)

SEEDETAILA

.090±.010

(2.286±.254)

DETAILA

PackageType:

.0075±.0035

(.191±.089)

22P

.350±.010

(8.89±.254)

(3.429±.381)

.1375±.0125

(3.4925±.3175)

.135±.015

.019±.004

(.483±.102)

.053±.013

(1.346±.330)

0.100
TYP.

HOLTINTEGRATEDCIRCUITS

8

.025±.010

(.635±.254)

.400±.010

(10.160±.254)

.435±.035

(11.049±.889)

0-15

o

HI-8783,HI-8784,HI-8785PACKAGEDIMENSIONS

24-PINPLASTICSMALLOUTLINE(SOIC)-WB

24-PINPLASTICSMALLOUTLINE(SOIC)-WB

(WideBody)

(WideBody)

.606±.004

(15.392±.102)

TYP

TYP

.2955±.0035
(7.506±.089)

.4065±.0125

(10.325±.318)

.018

.018

(.457)

(.457)

PackageType:

PackageType:

.0105±.0015

(.2667±.0381)

SEEDETAILA

SEEDETAILA

.095±.005

(2.413±.127)

inches(millimeters)

24HW

24HW

.050

.050

(1.27)

(1.27)

TYP

TYP

0°to8°

.033±.017

(.838±.432)

DETAILA

DETAILA

.0075±.0035

(.191±.089)

HOLTINTEGRATEDCIRCUITS

9