Revision 1.08 – October 15, 2007
440GRx – PPC440GRx Embedded Processor
Preliminary Data Sheet
Table 16. V Supply Power Dissipation
DD
Frequency (MHz)
+1.425V
1.2
+1.5V
1.35
1.45
1.9
+1.6V
1.55
1.7
Unit
W
Notes
400
1
1
1
533
1.25
1.7
W
667
2.4
W
Notes:
1. Power is estimated and is based on VDD specified in the table and TC = 85°C, while running Linux and a test application that exercises
each function with representative traffic.
Table 17. DC Power Supply Loads
Parameter
Symbol
Typical
1600
160
Maximum
2900
Unit
mA
mA
mA
Notes
V
DD (+1.5V) active operating current
IDD
OVDD (+3.3V) active operating current
EOVDD (+2.5V) active operating current
IODD
260
IEODD
80
100
2
2
ISODD2
ISODD1
500
400
600
500
mA
mA
SOVDD (+1.8V) DDR2 active operating current
SOVDD (+2.5V) DDR1 active operating current
AVDD (+1.5V) input current
IADD
20
20
30
30
mA
mA
1
1
EAVDD (+1.5V) active operating current
IEADD
Notes:
1. 1. See “Absolute Maximum Ratings” on page 64 for filter recommendations.
2. 2. SOVDD will be either +2.5V or +1.8V, but not both.
3. The maximum current values listed above are not guaranteed to be the highest obtainable. These values are dependent on many
factors including the type of applications running, clock rates, use of internal functional capabilities, external interface usage, case
temperature, and the power supply voltages. Your specific application can produce significantly different results. VDD (logic) current and
power are primarily dependent on the applications running and the use of internal chip functions (DMA, PCI, Ethernet, and so on).
OVDD (I/O) current and power are primarily dependent on the capacitive loading, frequency, and utilization of the external buses.
4. Typical current is estimated at 667MHz with VDD = +1.5V, OVDD = +3.3V, EOVDD = +2.5V, SOVDD = +2.5V (DDR1) or +1.8V (DDR2),
and TC = +85°C.
5. Maximum current is estimated at 667MHz with VDD = +1.6V, OVDD = +3.45V, EOVDD = +2.6V, SOVDD = +2.6V (DDR1) or +1.9V
(DDR2), and TC = +100°C, and best-case process (which drives worst-case power).
68
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