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CSS555EZProgrammerOperatingManualVersion1.
0,May2012ContentsOperatingInstructions&Features…2ProgrammerPCBDiagram…3555TimerConfigurationSettingsTable…5InternalTimingCapacitorTrimTable…6ProgrammingExamples:1)Program&ReadtheConfigurationBits…72)Read(only)theConfigurationSettings,83)Read(only)theTrimCapacitorSetting…94)AdjusttheTrimCapacitorSetting…10MiniCDContents…11ProgrammingSOICPackages…12TroubleshootingTips…132012CustomSiliconSolutions,Inc1OperatingInstructions&FeaturesTheEZProgrammerprovidesaquickandsimplemethodofreadingandprogrammingCSS555&CSS555Cdevices.
Someofitsfeaturesinclude:FeaturesStandaloneprogrammer(noPCrequired)RunsontwoAAAbatteriesProvidesbothPROGRAM&READfunctionsProvidesaccesstobothConfiguration&CapacitorTrimdataComeswithaDIPsocket,butcanbeeasilybeadaptedforSOICpackagesOperatingInstructionsAsmallPLD(ProgrammableLogicDevice)controlstheserialinterfacesignalsusedtoprogramandreadtheCSS555device.
NewconfigurationdataisenteredviaaDIPswitch.
DataisreadbackafterprogramminganddisplayedbyLEDs.
TheProgramandReadcyclesareautomaticallyruneachtimethepowerbuttonispressedandheldON.
(SeethePCBdrawingonpage3)TheLEDsblinkwhiletheprogramcycleisunderway.
Whentheprogramcyclehasfinished,thenewdataisdisplayedontheLEDsuntilthePOWERswitchisreleased.
2ProgrammerBoard3OperatingInstructions(cont)TheprogrammercanbepoweredwithtwoAAAbatteriesoraregulated+3.
3V±5%,100mADCsupply.
AfterconnectingpowertothePCB,inserttheCSS555(C)observingproperESDhandlingpractices.
Toprogramnewconfigurationdata,settheDIPswitchestotheappropriatepositions.
Thefunctionofeachswitchisshowninthe"ConfigurationSettings"tableonpage5.
(AsettingguideisalsoprovidedonthePCB.
)Toreadtheconfigurationsettingsonly(noprogramming),installthe"ReadOnly"jumper.
IfthedeviceisaCSS555Cwithaninternaltimingcapacitor,asecondjumperallowsRead/Writeaccesstothecapacitortrimdata.
AfterapplyingpowerandconfiguringtheDIPswitchesandjumpers,theProgramandReadcyclesareexecutedbypressingandholdingthepush-buttonPowerswitch.
Programmingtakesabouttwoseconds.
Whencompleted,theLEDswillstopblinkingandthesteadydisplayshowsthevalueofthenewconfiguration(orcapacitortrim)data.
Thedisplayremainsonuntilthepowerbuttonisreleased.
ReleasingthepowerswitchpowersdowntheICandprogrammer,makingitsafetoremovetheCSS555device.
Examplesofvariousprogrammingcyclesareshownonpages7-10.
4BatteryConnectorSelectTrimCapacitorJumperReadOutLEDsPower/ProgramSwitch87654321PLDLED1LED8LED7LED6LED5LED4LED3LED2+3VCAP_TRIMREAD_ONLYPWRPROGU2SOICDIPCSS555CCONFIGURATIONSWITCHSETTINGGUIDESelectReadOnlyJumperDIPSwitchUp555TimerConfigurationSettingsTableSwitchSetting87654321CounterSettingSwitchSetting87654321ConfigurationSettingsxxxxx↓↓↓1xxxx↓xxxAstable(ifCount≠1)xxxxx↓↓↑10xxxx↑xxxMonostable(ifCount≠1)xxxxx↓↑↓100xxx↓xxxxMicro-powerxxxxx↓↑↑1Kxxx↑xxxxLow-powerxxxxx↑↓↓10Kxx↓xxxxxStandardtriplevels(,)xxxxx↑↓↑100Kxx↑xxxxxLVtriplevels(10%,90%)xxxxx↑↑↓1MxxxxxxxBit7Notusedxxxxx↑↑↑1xxxxxxxCSS555/555C(Readonly)Notes:SetCounterto1forstandard555operationSwitch4'ssettingisonlyusedifCountersettingis>1.
Bit8isReadOnly.
Switch8'ssettinghasnoaffectduringprogramming.
LED8OFF=CSS555(Nointernaltimingcapacitor)LED8ON=CSS555C(100pFInternaltimingcapacitor)SeeCSS555specformoredetails.
5InternalTimingCapacitorTrimTable(CSS555Conly)SwitchSetting87654321SwitchValueTrimCapacitorValue0~85pF(minimum)1Minimum+1/8pF2Minimum+1/4pF3-12685to100pF127Mid–1/8pF128~100pF(mid)129Mid+1/8pF130-252100to115pF253Maximum–1/4pF254Maximum–1/8pF255~115pF(maximum)Notes:Switch1&LED1=LSB,Switch8&LED8=MSBThetimingcapacitoristrimmedto100pFatthefactory.
Topreserveitsvalue,readtheoriginalsettingbeforeprogramminginanewone.
6Example#1–Program&ReadtheConfigurationSettingsSettings:Counter=1K,Monostable,StandardTripLevels,Micro-Power1)Connectthebatterytotheprogrammerboard.
2)InstallaCSS555(C)partintothetestsocket.
3)SettheDIPSwitches.
Refertothe"SwitchSettingGuide"(onthePCB)orTableonpage5.
Setswitchesto:1=Up,2=Up,3=Down,4=Up,5=Down,6=Down(Switches6&7are"Don'tCare")(Up=towardstheedgeoftheboard,asshownonpage3)4)Checkjumpers.
(CAP_TRIM&READ_ONLYshouldNOTbeinstalled)5)PressandHOLDthePOWERbush-buttonswitch.
TheREDLEDswillblinkforabout2seconds.
6)Checkthenewconfigurationsetting(ContinueholdingthePowerswitchON)TheLEDswilldisplaythenewconfigurationsetting.
LEDs1-7shouldmatchtheDIPswitchsettings.
LED8indicatesthedevicetype,CSS555orCSS555C(ON=CSS555C)(Bit8is"ReadOnly",Switch8willnotchangetheparttype.
)7)ReleasethePowerswitchandremovethepart.
7Example#2–ReadtheConfigurationSettings(NoProgram)SwitchSettings:NoneforReadOnly(DIPSwitchisnotused)1)Connectthebatterytotheprogrammerboard.
2)InstallaCSS555(C)partintothetestsocket.
3)SetalltheDIPSwitchesto"Down".
Thisstepisoptional–theswitchdataisnotusedforREAD.
(Up=towardstheedgeoftheboard,asshownonpage3)4)Checkjumpers.
READ_ONLYjumperMUSTbeinstalled.
(ReadOnly=Enabled)CAP_TRIMjumpershouldNOTbeinstalled.
(TrimCapNOTselected)5)PressandHOLDthePOWERpush-buttonswitch.
TheREDLEDswillblinkforabout2seconds.
6)Checktheconfigurationsetting(ContinueholdingthePowerswitchON)LEDs1-7displaytheconfigurationsetting.
LED8indicatesthedevicetype,CSS555orCSS555C(ON=CSS555C)7)ReleasethePowerswitchandremovethepart.
8Example#3–ReadtheCapacitor'sTrimSetting(CSS555Conly)SwitchSettings:NoneforReadOnly(DIPSwitchisnotused)1)Connectthebatterytotheprogrammerboard.
2)InstallaCSS555Cpartintothetestsocket.
3)SetalltheDIPSwitchesto"Down".
Thisstepisoptional–theswitchdataisnotusedforREAD.
(Up=towardstheedgeoftheboard,asshownonpage3)4)Checkjumpers.
READ_ONLYjumperMUSTbeinstalled.
(ReadOnly=Enabled)CAP_TRIMjumperMUSTbeinstalled.
(TrimCapselected)5)PressandHOLDthePOWERbush-buttonswitch.
TheREDLEDswillblinkforabout2seconds.
6)Readthetrimsetting(ContinueholdingthePowerswitchON)TheLEDswilldisplaythetrimsettinginbinary.
LED1=LSB,LED8=MSB.
See"CapacitorTrimTable"onpage6toconvertbinarytopF.
7)ReleasethePowerswitchandremovethepart.
9Example#4–AdjusttheCapacitor'sTrimSetting(CSS555Conly)Settings:Increasetimingcapacitorvalueby~1pF1)Connectthebatterytotheprogrammerboard.
2)InstallaCSS555Cpartintothetestsocket.
3)ReadthebinarytrimsettingperExample#34)SettheDIPSwitches.
Toincreasethecapacitorvalueby1pF,add8tothetrimvalue.
Setswitches1-8tothenewbinaryvalueSwitch1=LSB,8=MSB;DOWN=0,UP=1(Up=towardstheedgeoftheboard,asshownonpage3)5)Checkjumpers.
READ_ONLYjumpershouldNOTbeinstalled.
(Enableprogramming)CAP_TRIMjumpershouldbeinstalled.
(TrimCapselected)6)PressandHOLDthePOWERbush-buttonswitch.
TheREDLEDswillblinkforabout2seconds.
7)Readthenewtrimsetting(ContinueholdingthePowerswitchON)TheLEDswilldisplaythetrimsettinginbinary.
(LED1=LSB)LEDs1-8shouldmatchtheDIPswitchsettings.
See"CapacitorTrimTable"onpage6toconvertbinarytopF.
8)ReleasethePowerswitchandremovethepart.
10MiniCDContents1)CSS555&CSS555CSpecifications(PDF)2)CSS555ApplicationNotes(PDF)CSS555_App_Note1_Serial_InterfaceCSS555_App_Note2_SPICE_ModelCSS555ApplicationCircuits3)CSS555&CSS555CSPICEModels(Text)4)DelayCalculators(Excel)CSS555_Calc.
xlsCSS555_Adj_Duty_Calc.
xls5)EZProgrammerOperatingManual(PDF)11ProgrammingSOICPackagesYourCSS555programmercomeswithan8-pinDIPsocketpre-installed.
TherearetwosimpleoptionstoconvertitforusewithSOICpackages.
Option#1–SOICPackagesOnlyRemovetheDIPtestsocketandreplaceitwithanSOICsocket.
ThePCBroutingandthru-holesaredesignedtoaccepteithersocket.
TheSOICsocketis:8PinSOICSocket:3MPN=Textool208-7391-55-1902Option#2–DIPandSOICPackagesPurchasetheSOICsocketlistedaboveandaDIPRibbonCable,partnumber:CWIndustries,PNC2PXS-1406M.
(14conductorsisthesmallestsizeavailable)TheconnectorsideofthecableplugsintotheDIPsocket.
SolderthewiresthatconnecttoDIPpins1-8tothecorrespondingSOICsocketpin.
Withthisadapter,theprogrammercanbeusedwitheitherDIPorSOICpackages.
Theprogrammercanalsobeusedtoprogrampartsaftertheyhavebeeninstalledintoasystem.
Formoreinformationonhowtodothis,seepage5of"CSS555_App_Note1_Serial_Interface.
pdf".
12TroubleshootingTipsSymptomPossibleProblemLEDsnevercomeonDeadbatteryBatteryinstalledbackwardsBatterynotconnectedDataalways=All0'sCSS555installedbackwardsDataalways=All1'sCSS555notinstalled(opensocket)CSS555notfullyseatedorabentpinDatawon'tchange"ReadOnly"jumperisinstalledBadIC(tryanother)WrongdataPowerswitch"glitched"BadIC(tryanother)TheCSS555hasESDprotectionratedat5,000V.
However,likeallCMOSICs,alwaysavoidelectrostaticbuilduptopreventdamagetothedevice.
13ContactInformationThankyouforpurchasingtheCSS555EZProgrammer.
Formoreinformationorassistance,pleasecontactCustomSiliconSolutionsat:CSS–CustomerService17951SkyParkCircle,SuiteFIrvine,CA92614(949)–797-9220orvisitourwebsite:www.
CustomSiliconSolutions.
com14