Intel W3540 AT80601000921AB User Manual

22

Intel® Xeon® Processor 3500 Series Datasheet Volume 1 

.

1.

For functional operation, all processor electrical, signal quality, mechanical and thermal specifications must 

be satisfied.

2.

Excessive overshoot or undershoot on any signal will likely result in permanent damage to the processor.

3.

V

TTA

 and V

TTD

 should be derived from the same VR.

The processor DC specifications in this section are defined at the processor 
pads, unless noted otherwise. See 

 for the processor land listings and 

 for signal definitions. Voltage and current specifications are detailed in 

. For platform planning, refer to 

, which provides V

CC

 static and transient 

tolerances. This same information is presented graphically in 

The DC specifications for the DDR3 signals are listed in 

. Control Sideband 

and Test Access Port (TAP) are listed in 

.

 through 

 list the DC specifications for the processor and are valid 

only while meeting specifications for case temperature (T

CASE

 as specified in 

), clock frequency, and input voltages. Care should be taken to 

read all notes associated with each parameter. 

V

CC

Processor Core voltage with respect to V

SS

-0.3

1.55

V

V

TTA

Voltage for the analog portion of the integrated 

memory controller, Intel QPI link and Shared 

Cache with respect to V

SS

—

1.35

V

3

V

TTD

Voltage for the digital portion of the integrated 

memory controller, Intel QPI link and Shared 

Cache with respect to V

SS

—

1.35

V

3

V

DDQ

Processor I/O supply voltage for DDR3 with 

respect to V

SS

—

1.875

V

V

CCPLL

Processor PLL voltage with respect to V

SS

1.65

1.89

V

T

CASE

Processor case temperature

See 

See 

°C

T

STORAGE

Storage temperature

See 

See 

°C