Electrical Specifications
22 Datasheet
capacitance, and 1 MΩ minimum impedance. The maximum length of ground wire on the
probe should be less than 5 mm. Ensure external noise from the system is not coupled into
the oscilloscope probe.
5. Refer to Table 2-4 and Figure 2-1 for the minimum, typical, and maximum V
CC
allowed for
a given current. The processor should not be subjected to any V
CC
and I
CC
combination
wherein V
CC
exceeds V
CC_MAX
for a given current.
6. I
CC_MAX
specification is based on V
CC_MAX
loadline. Refer to Figure 2-1 for details.
7. V
TT
must be provided via a separate voltage source and not be connected to V
CC
. This
specification is measured at the land.
8. Baseboard bandwidth is limited to 20 MHz.
9. This is the maximum total current drawn from the V
TT
plane by only the processor. This
specification does not include the current coming from on-board termination (R
TT
),
through the signal line. Refer to the Voltage Regulator Design Guide to determine the total
I
TT
drawn by the system. This parameter is based on design characterization and is not
tested.
10. Adherence to the voltage specifications for the processor are required to ensure reliable
processor operation.
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