Intel C2550 FH8065401488912 Data Sheet

Intel

®

 Atom™ Processor C2000 Product Family for Microserver

September 2014

Datasheet, Vol. 3 of 3

Order Number: 330061-002US

691

 specifies the device voltage supply requirements for each of the voltage 

supply groups. These groups are described in 

.

A voltage group name ending with an “A” signifies a supply that must always be on for 

all ACPI Sleep States (S0 through S5). Those ending with an “S” signifies a supply that 

is on only for S0 and switched off during all other states.

For values that are not specified, platform board designs are not required to stay within any particular 

limit, but all other specified tolerances must be met.

Adequate supply current is required for each device voltage group to ensure proper 

operation under normal conditions. This current requirement varies by product SKU. 

The tables below show the maximum current ICC

MAX

 the device draws over the supply 

voltage ranges shown in 

. ICC

MAX

 is the worst-case transient current that the 

SoC draws from a given power supply. Platform board designers typically use this value 

to keep the board Voltage Regulator (VR) current below the VR Over-Current Protection 

(OCP) limit. The Thermal Design Current (TDC) is also shown. It is the worst-case 

sustained current (DC equivalent) that the SoC draws from a given power supply. 

Platform board designers use this value for proper VR design including VR thermal 

design.

The TDC values shown in 

 are representative numbers. TDC values vary 

across parts and operating conditions. Only the ICC

MAX

 values are guaranteed.

VCC

SVID voltage for core circuitry (variable)

0.5-1.3

1.50%

1.00%

54 mV

VNN

Static SVID voltage for un-core circuitry 

(variable)

0.5-1.3

1.50%

1.00%

64 mV

V1P0A

Device circuitry (always-on voltage supply)

1.00

3%

1%

47 mV

V1P0S

Device circuitry (switched voltage supply)

1.00

2%

1%

47 mV

VCCSRAM

(V1P1S)

Device circuitry (switched voltage supply)

1.07

3%

1%

47 mV

V1P35S

Device circuitry (switched voltage supply)

1.35

2%

See Note

40 mV

V1P8A

Device circuitry (always-on voltage supply)

1.8

3%

See Note

72 mV

V1P8S

Device circuitry (switched voltage supply)

1.8

3%

See Note

72 mV

V3P3A

Device circuitry (always-on voltage supply)

3.3

2%

See Note

132 mV

V3P3S

Device circuitry (switched voltage supply)

3.3

2%

See Note

132 mV

VDDQA

DDR3 circuitry (switched voltage supply) for 

standard DDR3, VDDQ = 1.5V

1.5

1.80%

1%

60 mV

DDR3 circuitry (switched voltage supply) for 

low-power DDR3 (DDR3L), VDDQ = 1.35V

1.35

1.80%

1%

54 mV

VDDQB

DDR3 circuitry (switched voltage supply) for 

standard DDR3, VDDQ = 1.5V

1.5

1.80%

1%

60 mV

DDR3 circuitry (switched voltage supply) for 

low-power DDR3 (DDR3L), VDDQ = 1.35V

1.35

1.80%

1%

54 mV

VRTC3P0

Real Time Clock (RTC) battery (always-on 

voltage supply including when the system is 

in the G3 Mechanical-Off state)

3.0

See Note

See Note

-1.0V/+0.4V