Revision 2.04 – September 7, 2007
405GPr – Power PC 405GPr Embedded Processor
Data Sheet
Clocking Specifications
Symbol
Parameter
Min
Max
Units
CPU
PFC
PTC
Processor clock frequency
Processor clock period
266.66/333.33/400
MHz
ns
3.75/3/2.5
SysClk Input
SCFC
Clock input frequency
25
15
66.66
40
MHz
ns
SCTC
SCTCS
SCTCH
SCTCL
Clock period
Clock edge stability (phase jitter, cycle to cycle)
Clock input high time
0.15
ns
40% of nominal period
40% of nominal period
60% of nominal period
60% of nominal period
ns
Clock input low time
ns
Note: Input slew rate > 1V/ns between 0.8V and 2.0V
MemClkOut Output
MCOFC
MCOTC
Clock output frequency ꢀ PFC = 266MHz
Clock period ꢀ PFC = 266MHz
Clock edge stability (phase jitter, cycle to cycle)
Clock output high time
133.33
MHz
ns
7.5
MCOTCS
MCOTCH
MCOTCL
0.2
ns
45% of nominal period
45% of nominal period
55% of nominal period
55% of nominal period
ns
Clock output low time
ns
TrcClk Output
TCFC
PFC / 2
PTC x 2
Clock output frequency
Clock period
MHz
ns
TCTC
TCTCS
TCTCH
TCTCL
Clock edge stability (phase jitter, cycle to cycle)
Clock output high time
0.2
ns
45% of nominal period
45% of nominal period
55% of nominal period
55% of nominal period
ns
Clock output low time
ns
Other Clocks
VCOFC
VCO frequency
500
500
1000
1333
MHz
MHz
MHz
MHz
VCOFC
PLBFC
OPBFC
VCO frequency ꢀ PFC = 333MHz or 400MHz
PLB frequency
OPB frequency
133.33
66.66
Clocking Waveform
2.0V
1.5V
0.8V
T
T
CL
CH
T
C
AMCC
43
AMCC [ APPLIED MICRO CIRCUITS CORPORATION ]
