Specifications

PPC405EP – PowerPC 405EP Embedded Processor
42 AMCC
Revision 1.08 – March 24, 2008
Data Sheet
Figure 4. Clocking Waveform
Table 12. Clocking Specifications
Symbol Parameter Min Max Units
CPU
PF
C
Processor clock frequency
133.33, 200, 266.66, or
333.33
MHz
PT
C
Processor clock period 7.5, 5, 3.75 or 3 ns
SysClk Input
SCF
C
Frequency 25 100 MHz
SCT
C
Period 10 40 ns
SCT
CS
Edge stability (phase jitter, cycle to cycle) – ±0.15 ns
SCT
CH
Input high time 40% of nominal period 60% of nominal period ns
SCT
CL
Input low time 40% of nominal period 60% of nominal period ns
Note: Input slew rate > 2V/ns
MemClkOut Output
MCOF
C
Frequency
PLBF
C
MHz
MCOT
C
Period
1/PLBF
C
ns
MCOT
CS
Edge stability (phase jitter, cycle to cycle) – ±0.2 ns
MCOT
CH
Output high time 45% of nominal period 55% of nominal period ns
MCOT
CL
Output low time 45% of nominal period 55% of nominal period ns
TrcClk Output
TCF
C
Clock output frequency
PF
C
/2
MHz
TCT
C
Clock period
PT
C
x2
ns
TCT
CS
Clock edge stability (phase jitter, cycle to cycle) ± 0.2 ns
TCT
CH
Clock output high time 45% of nominal period 55% of nominal period ns
TCT
CL
Clock output low time 45% of nominal period 55% of nominal period ns
Other Clocks
VCOF
C
VCO frequency @ PF
C
= 133, 200, or 266MHz
500 1000 MHz
VCOF
C
VCO frequency @ PF
C
= 333MHz
500 1333 MHz
PLBF
C
PLB frequency @ PF
C
= 266.66MHz
66.66 133.33 MHz
PLBF
C
PLB frequency @ PF
C
= 333.33MHz
55.55 111.11 MHz
PLBF
C
PLB frequency @ PF
C
= 200MHz
50 100 MHz
OPBF
C
OPB frequency @ PF
C
= 133.33MHz
8.33 66.66 MHz
OPBF
C
OPB frequency @ PF
C
= 266.66MHz
16.66 66.66 MHz
OPBF
C
OPB frequency @ PF
C
= 333.33MHz
13.87 55.55 MHz
OPBF
C
OPB frequency @ PF
C
= 200MHz
12.5 50 MHz
T
CL
T
CH
T
C
2.0V
1.5V
0.8V