Revision 1.26 – October 15, 2007
440EPx – PPC440EPx Embedded Processor
Preliminary Data Sheet
Table 13. Typical DC Power Supply Requirements Using DDR2 Memory
+1.5V Supply
(VDD+AVDD+EAVDD
+1.8V Supply
+2.5V Supply
+3.3V Supply
(OVDD+UAVDD)
Frequency (MHz)
Total
Unit
Notes
)
(SOVDD
)
(EOVDD
)
400
533
1.61
1.82
2.16
0.35
0.36
0.37
0.28
0.28
0.28
0.2
0.2
0.2
2.44
2.66
3.01
W
W
W
1
1
1
667
Notes:
1. Typical power is measured and is based on a nominal voltage of VDD = +1.5V, TC = 100°C, while running Linux and a test application
that exercises each function with representative traffic.
Table 14. Typical DC Power Supply Requirements Using DDR1 Memory
+1.5V Supply
(VDD+AVDD+EAVDD
+1.8V Supply
+2.5V Supply
(SOVDD + EOVDD
+3.3V Supply
(OVDD+UAVDD)
Frequency (MHz)
Total
Unit
Notes
)
(SOVDD
)
)
400
533
1.69
1.88
2.20
na
na
na
1.33
1.35
1.37
0.2
0.2
0.2
3.22
3.43
3.77
W
W
W
1
1
1
667
Notes:
1. Typical power is measured and is based on a nominal voltage of VDD = +1.5V, TC = 100°C, while running Linux and a test application
that exercises each function with representative traffic.
Table 15. V Supply Power Dissipation
DD
Frequency (MHz)
+1.425V
+1.5V
1.69
+1.6V
2.00
Unit
W
Notes
400
533
667
1.49
1.64
1.94
1
1
1
1.88
2.21
W
2.20
2.78
W
Notes:
1. Power is measured and is based on VDD specified in the table and TC = 100°C, while running Linux and a test application that exercises
each function with representative traffic.
70
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