
Datasheet
3
Low Voltage Intel
Xeon Processor at 1.60 GHz, 2.0 GHz and 2.4 GHz
Contents
Introduction....................................................................................................................................9
Terminology ........................................................................................................................ 10
Processor Packaging Terminology ........................................................................ 10
Electrical Specifications ............................................................................................................. 13
System Bus and GTLREF .................................................................................................. 13
Power and Ground Pins...................................................................................................... 13
Decoupling Guidelines ........................................................................................................13
VCC Decoupling .................................................................................................... 14
System Bus AGTL+ Decoupling ............................................................................ 14
System Bus Clock (BCLK[1:0]) and Processor Clocking ....................................................14
Voltage Identification ......................................................................................................... 17
Mixing Processors of Different Voltages ................................................................ 18
Reserved Or Unused Pins .................................................................................................. 19
System Bus Signal Groups .................................................................................................19
Asynchronous GTL+ Signals .............................................................................................. 21
Maximum Ratings ...............................................................................................................21
Processor DC Specifications .............................................................................................. 22
AGTL+ System Bus Specifications .....................................................................................27
System Bus AC Specifications ........................................................................................... 27
System Bus Signal Quality Specifications................................................................................ 39
System Bus Clock (BCLK) Signal Quality
Specifications and Measurement Guidelines...................................................................... 39
System Bus Signal Quality Specifications
and Measurement Guidelines ............................................................................................. 40
System Bus Signal Quality Specifications
and Measurement Guidelines ............................................................................................. 43
Overshoot/Undershoot Guidelines.........................................................................43
Overshoot/Undershoot Magnitude .........................................................................44
Overshoot/Undershoot Pulse Duration ..................................................................44
Activity Factor ........................................................................................................44
Reading Overshoot/Undershoot Specification Tables ........................................... 45
Determining When a System Meets the Overshoot/Undershoot
Specifications......................................................................................................... 45
Mechanical Specifications .......................................................................................................... 51