{"title":"Clocking considerations for a Pentium-based CPU module with 512K byte secondary cache","authors":"R.M. Reinschmidt, D. Leuthold","doi":"10.1109/MCMC.1994.292531","DOIUrl":null,"url":null,"abstract":"A method of distributing clock to and on a Pentium-based CPU module was designed and produced. Multiple clock driver outputs are connected in parallel and drive a PC board trace through a series termination resistor to the input of the module. On the module, the clock inputs to 20 dice are connected together and brought to a single PGA pin. The effect of varying termination resistance, PWB foil characteristic impedance, and foil length on the clock waveform characteristics including skew, edge rate, overshoot, and time of flight were determined.<<ETX>>","PeriodicalId":292463,"journal":{"name":"Proceedings of IEEE Multi-Chip Module Conference (MCMC-94)","volume":"401 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1994-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of IEEE Multi-Chip Module Conference (MCMC-94)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MCMC.1994.292531","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
A method of distributing clock to and on a Pentium-based CPU module was designed and produced. Multiple clock driver outputs are connected in parallel and drive a PC board trace through a series termination resistor to the input of the module. On the module, the clock inputs to 20 dice are connected together and brought to a single PGA pin. The effect of varying termination resistance, PWB foil characteristic impedance, and foil length on the clock waveform characteristics including skew, edge rate, overshoot, and time of flight were determined.<>
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