HOLT HI-15530CDT, HI-15530CDM, HI-15530CDI, HI-15530PST, HI-15530PSI Datasheet

July2001

HI-15530

ManchesterEncoder/Decoder

GENERALDESCRIPTION

TheHI-15530isahighperformanceCMOSintegrated
circuitdesignedtomeettherequirementsofMil-Std-1553
andsimilarManchesterIIencoded,timedivision
multiplexedserialdataprotocols.TheHI-15530contains
bothanEncoderandDecoder,whichoperate
independently.

ThedevicegeneratesMil-Std-1553syncpulses,paritybits
aswellastheManchesterIIencodingofthedatabits.The
decoderrecognizesandidentifiessyncpulses,decodes
databits,andperformsparitychecking.

TheHI-15530supportsthe1Mbit/sdatarateofMil-Std­1553overthefulltemperatureandvoltagerange.

Forapplicationsrequiringsmallfootprintsandlowcost,the
HI-15530isavailableina24-pinplasticSOICpackage.
CeramicDIPandLCCpackagesarealsoavailableto
achievethehighestlevelofreliabilityandtoprovidedrop-in
replacementforobsoletepartsfromothermanufacturers.

FEATURES

!

Mil-Std-1553compatible

!

InterfacestoHI-1567Transceiver

!

Smallfootprint24-pinplasticSOICpackage
option

!

Directreplacementfor:

HarrisHD15530
GECPlesseySemiconductorsMAS15530
AeroflexACT15530

!

1.25Mbit/sDataRate

!

ManchesterIIEncodeandDecode

!

SyncidentificationandLock-in

!

Clockrecovery

APPLICATIONS

!

Mil-Std-1553Interfaces

!

ARINC708AInterfaces

!

SmartMunitions

!

Storesmanagement

!

Sensorinterfaces

!

Instrumentation

PINCONFIGURATION (TopView)

VALIDWORD1

ENCODERSHIFTCLK2

TAKEDATA3

SERIALDATAOUT4

DECODERCLK5

BIPOLARZEROIN6

BIPOLARONEIN7

UNIPOLARDATAIN8

DECODERSHIFTCLK9

COMMAND/SYNC10

DATA

DECODERRESET11

GND12

HI-15530PSI

24PinSOICpackage

24VDD
23ENCODERCLK
22SENDCLKIN
21SENDDATA
20SYNCSELECT
19ENCODERENABLE
18SERIALDATAIN
17

BIPOLARONEOUT

16

OUTPUTINHIBIT

15

BIPOLARZEROOUT

146OUT

÷

13MASTERRESET

HOLTINTEGRATEDCIRCUITS

(DS15530Rev.A)07/01

HI-15530

PINDESCRIPTIONS

SIGNALFUNCTIONDESCRIPTION

VALIDWORDOUTPUTAhighoutputsignalsthereceiptofavalidword
ENCODERSHIFTCLOCKOUTPUTShiftsdataintotheencoderonalowtohightransition
TAKEDATAOUTPUTOutputishighduringreceiptofdataafteridentificationofaSync

PulseandtwovalidManchesterdatabits.
SERIALDATAOUTOUTPUTReceivedDataoutputinNRZformat
DECODERCLOCKINPUT12xthedatarate.Clockforthetransitionfinderandsynchronizer,

whichgeneratestheinternalclockfortheremainderofthedecoder
BIPOLARZEROININPUTAhighinputindicatesthe1553busisinitsnegativestate.

ThispinmustbeheldhighwhentheUnipolarinputisused
BIPOLARONEININPUTAhighinputindicatesthe1553busisinthepositivestate.

ThispinmustbeheldlowwhentheUnipolarinputisused
UNIPOLARDATAININPUTInputforunipolardatatothetransitionfinder.Mustbeheldlowwhen

notinuse
DECODERSHIFTCLOCKOUTPUTProvidestheDECODERCLOCKdividedby12,synchronizedbythe

recoveredserialdata
COMMAND/SYNCOUTPUTAhighonthispinoccursduringtheoutputofdecodeddatawhich

DECODERRESETINPUTAhighappliedtothispinduringaDECODERSHIFTCLOCKrising

GNDPOWER0Vsupply
MASTERRESETINPUTAhighonthispinclears2:1countersinbothEncoderandDecoder,

6OUTOUTPUTProvidesENCODERCLOCKdividedby6

÷

BIPOLARZEROOUT

OUTPUTINHIBITBIPOLARZEROOUTBIPOLARONEOUT

BIPOLARONEOUT

SERIALDATAININPUTReceiverserialdataattherateoftheENCODERSHIFTCLOCK
ENCODERENABLEINPUTAhighonthispininitiatestheencodecycle.(Subjecttothe

SYNCSELECTINPUTActuatesaCommandSyncforaninputhighandaDataSyncfora

SENDDATAOUTPUTAnactivehighoutputwhichenablestheexternalsourceofserial

SENDCLOCKININPUTClockinputat2timestheDatarate,usualydrivenby6OUT
ENCODERCLOCKINPUTInputtothedivideby6circuit.NormalfrequencyisDataratex12
VDDPOWER5V+/-10%

DATA

wasprecededbyaCommand(orStatus)synchronizingcharacter.A

lowoutputindicatesaDatasynchronizingcharacter

edgeresetsthebitcounter

andresetsthedivide-by-6circuit

OUTPUTAnactivelowoutputintendedtodrivethezeroornegativesenseofa

MIL-STD-1553LineDriver

INPUTAlowinhibitstheandby

forcingthemtoinactivehighstates

OUTPUTAnactivelowoutputintendedtodrivetheoneorpositivesenseona

MIL-STD-1553LineDriver

preceedingcyclebeingcomplete)

low

Data

÷

HOLTINTEGRATEDCIRCUITS

2

ENCODEROPERATION

HI-15530

Theencoderrequiresasingleclockwithafrequencyof
twicethedesiredrateappliedattheSENDCLOCKinput.
Anauxiliarydividebysixcounterisprovidedonchipwhich
canbeutilizedtoproducetheSENDCLOCKbydividing
theENCODERCLOCK.

TheEncoder'scyclebeginswhenENCODERENABLEis
highduringafallingedgeofENCODERSHIFTCLOCK(1).
ThiscyclelastsforonewordlengthortwentyENCODER
SHIFTCLOCKperiods.Atthenextlow-to-hightransitionof
theENCODERSHIFTCLOCK,ahighatSYNCSELECT
inputactuatesacommandsyncoralowwillproducea
datasyncforthatword(2).WhentheEncoderisreadyto
acceptdata,theSENDDATAoutputwillgohighand
remainhighforsixteenENCODERSHIFTCLOCKperiods
(3).Duringthesesixteenperiodsthedatashouldbe
clockedintotheSERIALDATAinputwitheverylow-to-high
transitionoftheENCODERSHIFTCLOCK(3)-(4).After
thesyncandtheManchesterIIcodeddataaretransmitted
throughtheandoutputs,

BIPOLARONEBIPOLARZERO
theEncoderaddsonanadditionalbitwhichistheparityfor
thatword(5).IfENCODERENABLEisheldhighcontinu­ously,consecutivewordswillbeencodedwithoutan
interframegap.ENCODERENABLEmustgolowbytime
(5)asshowntopreventaconsecutivewordfrombeing
encoded.Atanytimealowontheinput

OUTPUTINHIBIT
willforcebothbipolaroutputstoahighstatebutwillnot
affecttheEncoderinanyotherway.

ToaborttheEncodertransmissionapositivepulsemustbe
appliedatMASTERRESET.Anytimeafterorduringthis
pulse,alowtohightransitiononSENDCLOCKclearsthe
internalcountersandinitializestheEncoderforanew
word.

MASTERRESET

MASTERRESET

SENDCLKIN

SENDCLKIN

÷ 6OUT

÷ 6OUT

ENCODERCLK

ENCODERCLK

÷6÷2÷6

÷6÷2÷6

Bit

Bit

Counter

Counter

SEND

SEND
DATA

DATA

ENCODER

ENCODER

SHIFT

SHIFT

CLK

CLK

SERIAL

SERIAL

DATA

DATA

IN

IN

ENCODER

ENCODER

Character

Character

Former

Former

ENABLE

ENABLE

OUTPUT

OUTPUT

INHIBIT

INHIBIT

SYNC

SYNC

SELECT

SELECT

BIPOLAR

BIPOLAR
ONEOUT

ONEOUT

BIPOLAR

BIPOLAR

ZEROOUT

ZEROOUT

TIMING

SENDCLK

ENCODER

SHIFTCLK

ENCODER

ENABLE

SYNCSELECT

SENDDATA

SERIAL

DATAIN

BIPOLAR

ONEOUT

BIPLOAR

ZEROOUT

0 1 2 3 4 5 6 7 15 16 17 18 19

DON’TCARE

VALID

SYNC

(1) (2) (3) (4) (5)

DON’TCARE

15 14 13 12 11 3 2 1 010

SYNC

15 14 13 12 11 3 2 1 0 P

3 2 1 0 P15 14 13 12 11SYNC SYNC

HOLTINTEGRATEDCIRCUITS

3

DECODEROPERATION

HI-15530

TheDecoderrequiresasingleclockwithafrequencyof12
timesthedesireddatarateappliedattheDECODER
CLOCKinput.TheManchesterIIcodeddatacanbe
presentedtotheDecoderinoneoftwoways.The
BIPOLARONEandBIPOLARZEROinputswillaccept
datafromacomparatorsensedtransformercoupledbusas
specifiedinMIL-STD-1553.TheUNIPOLARDATAinput
canonlyacceptnon-invertedManchesterIIcodeddata
(e.g.fromofanEncoder).The

BIPOLARZEROOUT
Decoderisfreerunningandcontinuouslymonitorsitsdata
inputlinesforavalidsynccharacterandtwovalid
Manchesterdatabitstostartanoutputcycle.Whenavalid
syncisrecognized(1),thetypeofsyncisindicatedon
COMMAND/SYNCoutput.Ifthesynccharacterwas

DATA
acommandsync,thisoutputwillgohigh(2)andremain
highforsixteenDECODERSHIFTCLOCKperiods(3),
otherwiseitwillremainlow.TheTAKEDATAoutputwillgo
highandremainhigh(2)-(3)whiletheDecoderis
transmittingthedecodeddatathroughSERIALDATAOUT.
ThedecodeddataavailableatSERIALDATAOUTisina
NRZformat.TheDECODERSHIFTCLOCKisprovidedso
thatthedecodedbitscanbeshiftedintoanexternalregister
oneverylow-to-hightransitionofthisclock(2)-(3).Afterall
sixteendecodedbitshavebeentransmitted(3)thedatais
checkedforoddparity.AhighonVALIDWORDoutput(4)
indicatesasuccessfulreceptionofawordwithoutany
Manchesterorparityerrors.AtthistimetheDecoderis

lookingforanewsynccharactertostartanotheroutput
sequence.VALIDWORDwillgolowapproximately20
DECODERSHIFTCLOCKperiodsafteritgoeshighifnot
resetlowsoonerbyavalidsyncandtwovalidManchester
bitsasshown(1).Atanytimeintheabovesequence,a
highinputonDECODERRESETduringalow-to-high
transitionofDECODERSHIFTCLOCKwillabort
transmissionandinitializetheDecodertostartlookingfora
newsynccharacter.

PARITY
CHECK

TAKEDATA

COMMAND/

SYNC

SERIALDATA

OUT

VALID

WORD

DECODER
SHIFTCLK

DATA

UNIPOLAR

DATAIN

BIPOLAR

ONEIN

BIPOLAR

ZEROIN

DECODER

CLK

MASTER

RESET

TRANSITION

FINDER

SYNCHRONIZER

DECODER

RESET

CHARACTER

IDENTIFIER

BIT

RATE

CLK

BIT

COUNTER

TIMING

DECODER

SHIFTCLK

BIPOLAR

ONEIN

BIPLOAR

ZEROIN

TAKEDATA

COMMAND/

SYNCDATA

SERIAL

DATAOUT

VALIDWORD

0 1 2 3 4 5 6 7 16 17 18 19

SYNC

Maybehighfrompreviousreception

SYNC

UNDEFINED

15 14 13 12 11 2 1 0 P

15 14 13 12 3 2 1 0

(1)(2) (3) (4)

8

10

10

2 1 0 P15 14 13 12 11SYNC SYNC

4

HOLTINTEGRATEDCIRCUITS

4

HI-15530

SENDCLK

ENCODER

SHIFTCLK

SERIALDATAIN

SENDCLK
ENCODER

SHIFTCLK

ENCODERENABLE

SYNCSELECT

ENCODER

SHIFTCLK

SENDDATA

SENDCLK

BIPOLARONEOUT

BIPOLARZEROOUT

t

E1

VALID

t

E2

VALID

t

E1

t

E4

t

E5

t

E3

t

E6

VALID

t

E7

t

E8

t

E9

or

DECODERSHIFTCLK

COMMAND/SYNCDATA

TAKEDATA

DECODERSHIFTCLK

SERIALDATAOUT

DECODERSHIFTCLK

COMMAND/SYNCDATA

TAKEDATA

VALIDWORD

DECODERSHIFTCLK

DECODERRESET

t

D6

t

D7

t

D8

DATABIT

t

D9

t

D10

t

D11

t

DRH

t

DR

t

DRS

HOLTINTEGRATEDCIRCUITS

5

HI-15530

BITPERIOD BITPERIODBITPERIOD

BIPOLARONEIN

BIPOLARZEROIN

BIPOLARONEIN

BIPOLARZEROIN

BIPOLARONEIN

BIPOLARZEROIN

UNIPOLARIN

UNIPOLARIN

UNIPOLARIN

t

D1

t

D2

COMMANDSYNC

t

D1

t

D2

t

t

D3

D1

t

D4

t

D3

t

D1

t

D5

DATASYNC

t

D3

t

D1

t

D1

t

D3

t

D1

t

D3

t

D2

t

D2

t

D3

t

D1

t

D5

t

D4

t

D3

t

D3

t

D3

ZEROONE ONE

t

D2

t

D2

t

D2

t

t

D4

D5

COMMANDSYNC

DATASYNC

t

ZEROONE ONE

D5

t

D2

t

D4

t

D4

CommandWord

DataWord

StatusWord

0 1 2 3 4 5 6 7 8 9 10 1211 13 14 15 16 17 18 19BitPeriod

SYNC

SYNC

SYNC

TERMINALADDRESS

SYNC

SYNC

TERMINALADDRESS ME CODEFORFAILUREMODES

SYNC

R/T SUBADDRESS

HOLTINTEGRATEDCIRCUITS

6

/MODE

DATAWORD

DATAWORD

COUNT

P

P

P

TF

HI-15530

InputVoltageInputVoltageHIV70%VV

ClockInputVoltageInputVoltageHIVV-0.5V

OutputVoltageLogic“1”OutputVoltageVI=-3mA2.4V

SupplyVoltageV-0.3Vto+7V

VDDoltageatanypin-0.3VtoVcc+0.3V
OperatingTemperatureRange:

PowerDissipationat25C

PlasticSOIC1.5W,derate10mW/C
CeramicDIP1.0W,derate7mW/

°

°C
DCCurrentDrainperpin±10mA
StorageTemperatureRange:-65°Cto+150°C

(Industrial)-40°Cto+85°C
(Military)-55°Cto+125°C

NOTE:Stressesabovethoselistedunder"AbsoluteMaximumRatings"maycausepermanentdamagetothedevice.Thesearestressratings
only.Functionaloperationofthedeviceattheseoranyotherconditionsabovethoseindicatedintheoperationalsectionsofthespecificationsisnot
implied.Exposuretoabsolutemaximumratingconditionsforextendedperiodsmayaffectdevicereliability.

V=5V±10%,GND=0V,TA=OperatingTemperatureRange(unlessotherwisespecified).DD

LIMITS

PARAMETERCONDITIONSUNITSYMBOL

InputVoltageLOVIL30%VV

InputVoltageLOV0.5VV

IHDD

IHCDD
ILC

MINTYPMAX

DD

InputLeakageCurrentInputSinkI1.0

InputSourceI-1.0

Logic“0”OutputVoltageVI=1.8mA0.4V
StandbySupplyCurrentIV=V,OutputsOpen2.0mA
OperatingSupplyCurrentIf=1MHz,OutputsOpen10.0mA
InputCapacitanceC7.0pF
OutputCapacitanceC10.0pF

IH

IL

OHOH
OLOL

DDSBINDD

DD

IN

OUT

µA
µA

HOLTINTEGRATEDCIRCUITS

7

DecoderClockFallTimetDCF8

VDD=5V,GND=0V,TA=OperatingTemperatureRange,CL=50pF±10%

HI-15530

PARAMETERSYMBOLUNITS

LIMITS

MINTYPMAX

EncoderTiming

EncoderClockFrequencyfEC015MHz

SendClockFrequencyfESC02.5MHz

EncoderClockRiseTimetECR8ns

EncoderClockFallTimetECF8ns

EncoderDataRatefED01.25MHz

MasterResetPulseWidthtMR150ns

ShiftClockDelaytE1125ns

SerialDataSetupTimetE275ns

SerialDataHoldTimetE375ns

EnableSetupTimetE490ns

EnablePulseWidthtE580ns

SyncSetupTimetE655ns

SyncPulseWidthtE7150ns

SendDataDelaytE8050ns

BipolarOutputDelaytE9130ns

EnableHoldTimetE1010ns

SyncHoldTimetE1195ns

DecoderTiming

DecoderClockFrequencyfDC015MHz

DecoderClockRiseTimetDCR8ns

ns

DecoderDataRatefDD01.25MHz

DecoderResetPulseWidthtDR150ns

DecoderResetSetupTimetDRS75ns

DecoderResetHoldTime

MasterResetPulseWidthtMR150ns

BipolarDataPulseWidthtD1tDC+10ns

SyncTransitionSpantD218tDCns

One-ZeroOverlaptD3tDC-10ns

ShortDataTransitionSpantD46tDCns

LongDataTransitionSpantD512tDCns

SyncDelay(On)tD6-20110ns

TakeDataDelay(On)tD70110ns

SerialDataOutDelaytD880ns

SyncDelay(Off)tD90110ns

TakeDataDelay(Off)tD100110ns

ValidWordDelaytD110110ns

tDRH10ns

HOLTINTEGRATEDCIRCUITS

8

HI-15530

VALIDWORD1

ENCODERSHIFTCLK2

TAKEDATA3

SERIALDATAOUT4

DECODERCLK5

BIPOLARZEROIN6

BIPOLARONEIN7

UNIPOLARDATAIN8

DECODERSHIFTCLK9

COMMAND/SYNC10

DATA

DECODERRESET11

GND12

24-PinCeramicSide-BrazedDIP

HI-15530CDI
HI-15530CDT
HI-15530CDM

24VDD
23ENCODERCLK
22SENDCLKIN
21SENDDATA
20SYNCSELECT
19ENCODERENABLE
18SERIALDATAIN
17

BIPOLARONEOUT

16

OUTPUTINHIBIT

15

BIPOLARZEROOUT

146OUT

÷

13MASTERRESET

DECODERCLK

N/C
N/C

BIPOLARZEROIN

BIPOLARONEIN

UNIPOLARDATAIN

DECODERSHIFTCLOCK

4321282726
5
6

HI-15530CLI

7

HI-15530CLT

8

HI-15530CLM

9

10
11

12131415161718

25
24
23
22
21
20
19

28-PinCeramicLCC

SENDDATA
N/C
N/C
SYNCSELECT
ENCODERENABLE
SERIALDATAIN
BIPOLARONEOUT

PART
NUMBER

PACKAGE
DESCRIPTION

TEMPERATURE
RANGE

FLOW

BURN INLEAD

FINISH

HI-15530CDI 24 PIN CERAMIC SIDE BRAZED DIP -40°C TO +85°C I NO GOLD

HI-15530CDT 24 PIN CERAMIC SIDE BRAZED DIP -55°C TO +125°C T NO GOLD

HI-15530CDM 24 PIN CERAMIC SIDE BRAZED DIP -55°C TO +125°C M YES SOLDER

HI-15530PSI 24 PIN PLASTIC SOIC -40°C TO +85°C I NO SOLDER

HI-15530PST 24 PIN PLASTIC SOIC -55°C TO +125°C T NO SOLDER
HI-15530CLI 24 PIN CERAMIC LEADLESS CHIP CARRIER -40°C TO +85°C I NO GOLD
HI-15530CLT 24 PIN CERAMIC LEADLESS CHIP CARRIER -55°C TO +125°C T NO GOLD
HI-15530CLM 24 PIN CERAMIC LEADLESS CHIP CARRIER -55°C TO +125°C M YES SOLDER

HOLTINTEGRATEDCIRCUITS

9

24-PINPLASTICSSOP

.307±.016
(7.80±.40)

.323±.012

(8.20±.30)

.012

(.30)

HI-15530

.209±.012
(5.30±.30)

TYP

TYP

PackageType:

PackageType:

.006

TYP

(.15)

SEEDETAILA

SEEDETAILA

.095±.005

(2.413±.127)

24HS

.026

TYP

TYP

(.65)

24-PINCERAMICSIDE-BRAZEDDIP

1.220MAX

(30.988MAX)

.610 ± .010

(15.494 ± .254)

.050TYP

.225MAX

(5.715MAX)

(1.270TYP)

0°to8°

(15.113 ± .254)

.085 ± .009

(2.159 ± .229)

.030±.008

(.75±.20)

.595 ± .010

DETAILA

PackageType:

(15.240 ± .254)

.005±.001

(.13±.08)

24C

.600 ± .010

.125MIN

(3.175MIN)

.100BSC

(2.540BSC)

.018TYP

(.457TYP)

HOLTINTEGRATEDCIRCUITS

10

.010 + .002/−.001

(.254 + .051/−.025)

HI-15530

28-PINCERAMICLEADLESSCHIPCARRIER

.020INDEX

(.508INDEX)

PIN1

.040x45°3PLS

(1.016x45°3PLS)

.451 ± .009

(11.455 ± .229)

SQ.

.080 ± .020

(2.032 ± .508)

.050BSC

(1.270BSC)

.008R±.006

(.203R ± .152)

PackageType:

PIN1

28S

.050 ± .005

(1.270 ± .127)

.025 ± .003

(.635 ± .076)

HOLTINTEGRATEDCIRCUITS

11