Revision 1.23 - Sept 21, 2006
PowerPC 440SPe Embedded Processor
Preliminary Data Sheet
Table 8. Package Thermal Specifications
Thermal resistance values for the PPC440SPe package in a convection environment are as follows:
Airflow ft/min (m/sec)
Parameter
Symbol
Unit
Notes
0 (0)
100 (0.51)
200 (1.02)
θ
Junction-to-case thermal resistance
0.8
0.8
0.8
°C/W
°C/W
1
2
JC
θ
Case-to-ambient thermal resistance (w/o heat sink)
15.5
13.1
11.9
CA
Range
Minimum
Maximum
θ
Junction-to-ball (typical)
6.5
6.5
°C/W
3
JB
Notes:
1. Case temperature, T , is measured at top center of case surface with device soldered to circuit board. For this part the junction
C
temperature and the case temperature are essentially identical.
2. The case-to-ambient thermal resistance is measured in a JEDEC JESD51-6 standard environment; and may not accurately
predict thermal performance in production equipment environments. The operational case temperature must be maintained.
3. 6.5 °C/W is the theoretical θ using an infinite heat sink. The larger number applies to the module mounted on a 1.8mm thick,
JB
2P card using 1oz. copper power planes, with an effective heat transfer area of 75mm2.
Table 9. Recommended DC Operating Conditions (Sheet 1 of 3)
Device operation beyond the conditions specified is not recommended. Extended operation beyond the recommended
conditions can affect device reliability.
Parameter
Logic Supply Voltage
Symbol
Minimum
+1.425
+3.0
Typical
+1.5
Maximum
+1.575
+3.6
Unit
V
Notes
VDD
4
4
OVDD
I/O Supply Voltage
+3.3
V
PCI & PCI-X I/O Supply Voltage
PCI-X DDR mode 2
+3.0
+3.3
+1.5
+3.6
PxVDD
V
V
V
4
4
4
3
+1.425
+1.575
Voltage Reference Input for PCI-X DDR Mode 2
PCIX0VRef0:1
SVDD
+1.425
+1.5
+1.575
DDR1 SDRAM Supply Voltage (DDR400)
DDR2 SDRAM
+2.3
+1.7
+2.5 (2.6)
+1.8
+2.7
+1.9
AxVDD
APExVDD
APxVDD
SVREF
Analog System and DDR PLL Supply Voltages
Analog PCI Express PLL Supply voltage
Analog PCI-X PLL Supply Voltages
DDR1 SDRAM Reference Voltage
+1.4
+ 1.65
+1.5
+2.5
+1.6
+2.75
V
V
V
V
V
+1.4
+1.5
+1.6
3
3
+1.15
+1.25
+1.35
SVREF
0.49 x SVDD
0.50 x SVDD
0.51 x SVDD
DDR2 SDRAM Reference Voltage
AMCC Proprietary
59
AMCC [ APPLIED MICRO CIRCUITS CORPORATION ]
