PowerPC 405GP Embedded Processor Data Sheet
Clocking Specifications
Symbol
Parameter
Min
Max
Units
CPU
PF
Processor clock frequency
133.33/200/266.66
MHz
ns
C
PT
Processor clock period
7.5/5/3.75
C
SysClk Input
SCF
Clock input frequency
25
15
66.66
40
MHz
ns
C
SCT
Clock period
C
SCT
Clock edge stability (phase jitter, cycle to cycle)
Clock input high time
± 0.15
ns
CS
SCT
40% of nominal period
40% of nominal period
60% of nominal period
60% of nominal period
ns
CH
SCT
Clock input low time
ns
CL
Note: Input slew rate > 2V/ns
MemClkOut Output
MCOF
MCOT
MCOF
MCOT
MCOF
MCOT
MCOT
Clock output frequency @ PF = 133MHz
66.66
100
MHz
ns
C
C
C
C
C
C
C
Clock period @ PF = 133MHz
15
10
C
Clock output frequency @ PF = 200MHz
MHz
ns
C
Clock period @ PF = 200MHz
C
Clock output frequency @ PF = 266MHz
133.33
MHz
ns
C
Clock period @ PF = 266MHz
7.5
C
Clock edge stability (phase jitter, cycle to cycle)
Clock output high time
± 0.2
ns
CS
CH
CL
MCOT
MCOT
45% of nominal period
45% of nominal period
55% of nominal period
55% of nominal period
ns
Clock output low time
ns
Other Clocks
VCOF
VCO frequency
400
800
66.66
100
MHz
MHz
MHz
MHz
MHz
MHz
MHz
C
PLBF
PLB frequency @ PF = 133MHz
C
C
PLBF
PLB frequency @ PF = 200MHz
C
C
PLBF
PLB frequency @ PF = 266MHz
133.33
33.33
50
C
C
OPBF
OPB frequency @ PF = 133MHz
C
C
OPBF
OPB frequency @ PF = 200MHz
C
C
OPBF
OPB frequency @ PF = 266MHz
66.66
C
C
Clocking Waveform
2.0V
1.5V
0.8V
T
T
CL
CH
T
C
Page 47 of 60
6/20/03
IBM [ IBM ]
