參數(shù)資料
型號: IBM25PPC405GPR3DB266
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 266 MHz, RISC PROCESSOR, PBGA456
封裝: 27 X 27 MM, ENHANCED, PLASTIC, BGA-456
文件頁數(shù): 38/58頁
文件大小: 1264K
代理商: IBM25PPC405GPR3DB266
Preliminary
PowerPC 405GPr Embedded Processor Data Sheet
3/14/03
Page 43 of 58
Clocking Waveform
Clocking Specifications
Symbol
Parameter
Min
Max
Units
CPU
PFC
Processor clock frequency
266.66 or 333.33 or 400
MHz
PTC
Processor clock period
3.75 or 3.00 or 2.5
ns
SysClk Input
SCFC
Clock input frequency
25
66.66
MHz
SCTC
Clock period
15
40
ns
SCTCS
Clock edge stability (phase jitter, cycle to cycle)
± 0.15
ns
SCTCH
Clock input high time
40% of nominal period
60% of nominal period
ns
SCTCL
Clock input low time
40% of nominal period
60% of nominal period
ns
Note: Input slew rate > 1 V/ns between 0.8 V and 2.0 V
MemClkOut Output
MCOFC
Clock output frequency @ PFC = 266MHz
133.33
MHz
MCOTC
Clock period @ PFC = 266MHz
7.5
ns
MCOTCS
Clock edge stability (phase jitter, cycle to cycle)
± 0.2
ns
MCOTCH
Clock output high time
45% of nominal period
55% of nominal period
ns
MCOTCL
Clock output low time
45% of nominal period
55% of nominal period
ns
TrcClk Output
TCFC
Clock output frequency
PFC / 2
MHz
TCTC
Clock period
PTC x 2
ns
TCTCS
Clock edge stability (phase jitter, cycle to cycle)
± 0.2
ns
TCTCH
Clock output high time
45% of nominal period
55% of nominal period
ns
TCTCL
Clock output low time
45% of nominal period
55% of nominal period
ns
Other Clocks
VCOFC
VCO frequency @ PFC = 266MHz
500
1000
MHz
VCOFC
VCO frequency @ PFC = 333MHz or 400MHz
500
1333
MHz
PLBFC
PLB frequency
133.33
MHz
OPBFC
OPB frequency
66.66
MHz
TCL
TCH
TC
2.0V
1.5V
0.8V
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