Intel
®
EP80579 Integrated Processor Product Line May 2010
Order Number: 320068-005US 310
Schematics Checklist—Intel
®
EP80579 Integrated Processor Product Line
28.3 Power Supply Decoupling
Table 101. Decoupling Recommendations (Sheet 1 of 3)
Power/Ground
Pin Name
Type Configuration Decap Qty Component Layout Notes
IA-32 core and Logic Power
VCC PWR
1.2V core logic power
supply
150 µF 2
10 µF 20
0.1 µF 5
VCC33 PWR 3.3V power supply
10 µF 10
0.1 µF 3
VCCPRTC PWR 3.3V RTC power supply
10 µF 1
0.1 µF 2
VCC50 PWR 5.0V power supply
10 µF 2
0.1 µF 5
VCC25 PWR 2.5V GbE power supply
2.2 µF 1
10 µF 1
0.1 µF 3
VCCVC PWR
IA-32 core -- 1.0V - 1.3V
CPU power supply
330 µF 2
150 µF 2
10 µF 15
VCC18 PWR 1.8V - DDR2 power supply
10 µF 3
0.1 µF 5
VTTDDR PWR
0.9V - DDR2 Termination
power supply
2.2 µF 2
0.1 µF 10
VCCA[2:1] PWR
IA-32 core Logic-- 1.2V
PLL power supply
• Connect to VCC
power supply
10 µF 1
0.1 µF 2
VCCTMP18 PWR
1.8V power supply for
thermal sensor
• Connect to VCC18
power supply (1.8V)
VCCUSB12 PWR
1.2V USB power supply
• Connect to VCC
power supply (1.2V)
VCCAPE PWR
1.2V PCI Express power
supply
• Connect to VCC
power supply(1.2V)
10 µF 1
0.1 µF 3
VCCRPE PWR
1.2V PCI Express power
supply
• Connect to VCC
power supply(1.2V)
VCCSATA PWR
1.2V SATA power supply
• Connect to VCC
power supply(1.2V)