标签: max2

   Tables5?through5?2provideinformationonabsolutemaximumratings,recommendedoperatingconditions,DCelectricalcharacteristics,andotherspecificationsforMAX?IIdevices.……

   Asprintedcircuitboards(PCBs)becomemorecomplex,theneedforthoroughtestingbecomesincreasinglyimportant.Advancesinsurface-mountpackagingandPCBmanufacturinghaveresultedinsmallerboards,makingtraditionaltestmethods(e.g.,externaltestprobesand“bed-of-nails”testfixtures)hardertoimplement.Asaresult,costsavingsfromPCBspacereductionsaresometimesoffsetbycostincreasesintraditionaltestingmethods.……

   ThisdatasheetprovidespackageinformationforAltera抯MAX?IIdevices.Itincludesthesesections.……

   MAX?IIdevicescontainatwo-dimensionalrow-andcolumn-basedarchitecturetoimplementcustomlogic.Columnandrowinterconnectprovidesignalinterconnectsbetweenthelogicarrayblocks(LABs).……

   Inreal-timeISPmode,theuserflashmemory(UFM),programmablelogic,andI/OpinsremainoperationalwhileprogrammingoftheCFMisinprogress.ThecontentsoftheCFMwillnotdownloadintotheSRAMafterthesuccessfulprogrammingoftheCFM.Instead,thedevicewaitsforapowercycletooccur.Thenormalpower-upsequenceoccurs(CFMdownloadstoSRAMatpower-up)andthedeviceentersusermodeaftertCONFIGtime.Figure12–2showstheflowofreal-timeISP.……

   Withahighlevelofflexibility,performance,andprogrammability,youcanusecrosspointswitchesinapplicationssuchasdigitalcrossswitching,telecommunications,andvideobroadcasting.Althoughthereareoff-the-shelfdevicesavailabletoimplementswitches,Altera?MAX?IIandMAXdevicesoffermoreflexibilitytocustomizeswitches,meetingspecificdesigngoalswithin-systemprogrammability(ISP).……