
4
MPC8245 Part Number Specification for the MPC8245ARZUnnnX Series
MOTOROLA
General Parameters
1.4.1.5
Power Characteristics
The AC electrical characteristics and AC timing for the parts described herein are unaffected and comply
with the MPC8245 Integrated Processor Hardware Specifications.
Table 5 provides the power consumption
for the MPC8245 part numbers described herein.
Table 5. Power Consumption
Mode
PCI Bus Clock/Memory Bus Clock
CPU Clock Frequency (MHz)
Unit
Notes
66133/399
66133/466
Typical
2.8
3.2
W
1, 5
Max—CFP
3.3
3.6
W
1, 2
Max—INT
2.8
3.1
W
1, 3
Doze
1.9
2.1
W
1, 4, 6
Nap
0.7
0.8
W
1, 4, 6
Sleep
0.4
W
1, 4, 6
I/O Power Supplies10
Mode
Range
Unit
Notes
Typ—OVDD
140–360
mW
7, 8
Typ—GVDD
340–920
340–930
mW
7, 9
Notes:
1. The values include VDD, AVDD, and AVDD2, but do not include I/O supply power.
2. Maximum—FP power is measured at VDD = 2.1 V with dynamic power management enabled while running an
entirely cache-resident, looping, floating point multiplication instruction.
3. Maximum—INT power is measured at VDD = 2.1 V with dynamic power management enabled while running entirely
cache-resident, looping, integer instructions.
4. Power saving mode maximums are measured at VDD = 2.1 V while the device is in doze, nap, or sleep mode.
5. Typical power is measured at VDD = AVDD = 2.1 V, OVDD = 3.3 V where a nominal FP value, a nominal INT value,
and a value where there is a continuous flush of cache lines with alternating ones and zeros on 64-bit boundaries
to local memory are averaged.
6. Power saving mode data measured with only two PCI_CLKs and two SDRAM_CLKs enabled.
7. The typical minimum I/O power values was the result of the MPC8245 performing cache resident integer operations
at the slowest frequency combination of 33:66:200 (PCI:Mem:CPU) MHz.
8. The typical maximum OVDD value resulted from the MPC8245 operating at the fastest frequency combination of
66:133:399 (PCI:Mem:CPU) MHz for the 400-MHz part, 66:133:466 (PCI:Mem:CPU) MHz for the 466-MHz part,
and performing continuous flushes of cache lines with alternating ones and zeros to PCI memory.
9. The typical maximum GVDD value resulted from the MPC8245 operating at the fastest frequency combination of
66:133:399 (PCI:Mem:CPU) MHz for the 400-MHz part, 66:133:466 (PCI:Mem:CPU) MHz for the 466-MHz part,
and performing continuous flushes of cache lines with alternating ones and zeros on 64-bit boundaries to local
memory.
10. Power consumption of PLL supply pins (AVDD and AVDD2) < 15 mW. Guaranteed by design and is not tested.