Datasheet 3
Contents
1Introduction..............................................................................................................9
1.1 Terminology .......................................................................................................9
1.1.1 Processor Terminology Definitions ............................................................10
1.2 References.......................................................................................................11
2 Electrical Specifications...........................................................................................13
2.1 Power and Ground Lands....................................................................................13
2.2 Decoupling Guidelines........................................................................................13
2.2.1 V
CC
Decoupling ......................................................................................13
2.2.2 V
TT
Decoupling ......................................................................................13
2.2.3 FSB Decoupling......................................................................................14
2.3 Voltage Identification.........................................................................................14
2.4 Reserved, Unused, and TESTHI Signals ................................................................16
2.5 Power Segment Identifier (PSID).........................................................................16
2.6 Voltage and Current Specification........................................................................17
2.6.1 Absolute Maximum and Minimum Ratings ..................................................17
2.6.2 DC Voltage and Current Specification........................................................18
2.6.3 V
CC
Overshoot .......................................................................................20
2.6.4 Die Voltage Validation.............................................................................21
2.7 Signaling Specifications......................................................................................21
2.7.1 FSB Signal Groups..................................................................................22
2.7.2 CMOS and Open Drain Signals .................................................................23
2.7.3 Processor DC Specifications .....................................................................24
2.7.3.1 Platform Environment Control Interface (PECI) DC
Specifications...........................................................................25
2.7.3.2 GTL+ Front Side Bus Specifications .............................................26
2.8 Clock Specifications...........................................................................................27
2.8.1 Front Side Bus Clock (BCLK[1:0]) and Processor Clocking............................27
2.8.2 FSB Frequency Select Signals (BSEL[2:0]).................................................28
2.8.3 Phase Lock Loop (PLL) and Filter ..............................................................29
2.8.4 BCLK[1:0] Specifications.........................................................................29
3 Package Mechanical Specifications ..........................................................................33
3.1 Package Mechanical Drawing...............................................................................33
3.2 Processor Component Keep-Out Zones.................................................................37
3.3 Package Loading Specifications ...........................................................................37
3.4 Package Handling Guidelines...............................................................................37
3.5 Package Insertion Specifications..........................................................................38
3.6 Processor Mass Specification...............................................................................38
3.7 Processor Materials............................................................................................38
3.8 Processor Markings............................................................................................38
3.9 Processor Land Coordinates................................................................................40
4 Land Listing and Signal Descriptions .......................................................................41
4.1 Processor Land Assignments...............................................................................41
4.2 Alphabetical Signals Reference............................................................................64
5 Thermal Specifications and Design Considerations ..................................................75
5.1 Processor Thermal Specifications.........................................................................75
5.1.1 Thermal Specifications............................................................................75
5.1.2 Thermal Metrology .................................................................................78
5.2 Processor Thermal Features................................................................................78
5.2.1 Thermal Monitor.....................................................................................78
5.2.2 Thermal Monitor 2..................................................................................79
5.2.3 On-Demand Mode ..................................................................................80
5.2.4 PROCHOT# Signal..................................................................................81
5.2.5 THERMTRIP# Signal ...............................................................................81