参数资料
型号: IBM25405GP-3BA200C2
元件分类: 微控制器/微处理器
英文描述: RISC PROCESSOR, PBGA456
封装: PLASTIC, BGA-456
文件页数: 36/48页
文件大小: 649K
代理商: IBM25405GP-3BA200C2
PowerPC 405GP Embedded Controller
Advance Information
Data Sheet
galdsh5f
06/15/99 Preliminary
IBM Corporation. All rights reserved.
Use is further subject to the provisions at the end of this document.
Page 41 of 48
Peripheral Interface Clock Timings
Parameter
Min
Max
Units
PCIClk input frequency (async mode PCI clock)
20
66
MHz
PCIClk period
15
50
ns
PCIClk input high time
40% of
nominal
period
60% of
nominal
period
ns
PCIClk input low time
40% of
nominal
period
60% of
nominal
period
ns
EMCMDClk output frequency
2.5
MHz
EMCMDClk period
400
ns
EMCMDClk output high time
160
ns
EMCMDClk output low time
160
ns
PhyTxClk input frequency
2.5
25
MHz
PhyTxClk period
40
400
ns
PhyTxClk input high time
35% of
nominal
period
–ns
PhyTxClk input low time
35% of
nominal
period
–ns
PhyRxClk input frequency
2.5
25
MHz
PhyRxClk period
40
400
ns
PhyRxClk input high time
35% of
nominal
period
–ns
PhyRxClk input low time
35% of
nominal
period
–ns
PerClk output frequency (for external master or synchronous slaves)
50
MHz
PerClk period
20
ns
PerClk output high time
50% of
nominal
period
66% of
nominal
period
ns
PerClk output low time
33% of
nominal
period
50% of
nominal
period
ns
UARTSerClk input frequency
<1/2 OPB
MHz
UARTSerClk period
40
ns
UARTSerClk input high time
40
60
ns
UARTSerClk input low time
40
60
ns
TmrClk input frequency
50
MHz
TmrClk period
20
ns
TmrClk input high time
40% of
nominal
period
60% of
nominal
period
ns
TmrClk input low time
40% of
nominal
period
60% of
nominal
period
ns
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