參數(shù)資料
型號: PC8260VTPU200
廠商: Atmel Corp.
英文描述: PowerPC-based Communications Processors
中文描述: 基于PowerPC的通信處理器
文件頁數(shù): 40/53頁
文件大?。?/td> 364K
代理商: PC8260VTPU200
40
PC8260PowerQUICCII
2131B–HIREL–02/03
ACElectricalSpecifications
Includedinthissectionareillustrationsandtablesofclockdiagrams,signals,andCPM
outputsandinputs.NotethatACtimingsarebasedona50pFload.Typicaloutput
bufferimpedancesareshowninTable9.
Note:
Thesearetypicalvaluesat65°C.Theimpedancemayvaryby±25%withprocessand
temperature.
Althoughthespecificationsgenerallyrefertotherisingedgeoftheclock,thefollowing
ACtimingdiagramsalsoapplywhenthefallingedgeistheactiveedge.
Figure4.
FCCExternalClockDiagram
Figure5.
FCCInternalClockDiagram
Table9.
OutputBufferImpedances
OutputBuffers
TypicalImpedance
(
)
60xbus
40
Localbus
40
MemoryController
40
ParallelI/O
46
PCI
25
FCC Output Signals
FCC Input Signals
sp36b/sp37b
sp17b
sp16b
Serial CLKin
FCC Output Signals
FCC Input Signals
sp36a/sp37a
sp17a
sp16a
BRG_OUT
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