Contents
Tables
1-1 References .................................................................................................................................13
2-1 Core Frequency to FSB Multiplier Configuration........................................................................16
2-2 Voltage Identification Definition ..................................................................................................18
2-3 FSB Signal Groups.....................................................................................................................21
2-4 Signal Characteristics.................................................................................................................22
2-5 Signal Reference Voltages.........................................................................................................22
2-6 BSEL[2:0] Frequency Table for BCLK[1:0].................................................................................23
2-7 Processor DC Absolute Maximum Ratings ................................................................................24
2-8 Voltage and Current Specifications ............................................................................................25
2-9 VCC Static and Transient Tolerance for 775_VR_CONFIG_04A Processors ...........................27
2-10VCC Static and Transient Tolerance for 775_VR_CONFIG_04B Processors ...........................29
2-11 GTL+ Asynchronous Signal Group DC Specifications ..............................................................31
2-12GTL+ Signal Group DC Specifications .......................................................................................31
2-13PWRGOOD and TAP Signal Group DC Specifications..............................................................32
2-14VTTPWRGD DC Specifications..................................................................................................32
2-15BSEL [2:0] and VID[5:0] DC Specifications................................................................................32
2-16BOOTSELECT DC Specifications..............................................................................................32
2-17VCC Overshoot Specifications ...................................................................................................33
2-18GTL+ Bus Voltage Definitions ....................................................................................................34
3-1 Processor Loading Specifications ..............................................................................................39
3-2 Package Handling Guidelines ....................................................................................................39
3-3 Processor Materials....................................................................................................................40
4-1 Alphabetical Land Assignments .................................................................................................46
4-2 Numerical Land Assignment.......................................................................................................56
4-3 Signal Description.......................................................................................................................66
5-1 Processor Thermal Specifications..............................................................................................76
5-2 Thermal Profile for Processors with PRB = 1 .............................................................................77
5-3 Thermal Profile for Processors with PRB = 0 .............................................................................78
5-4 Thermal Diode Parameters ........................................................................................................83
5-5 Thermal Diode Interface.............................................................................................................83
6-1 Power-On Configuration Option Signals.....................................................................................85
7-1 Fan Heatsink Power and Signal Specifications..........................................................................92
7-2 Fan Heatsink Power and Signal Specifications..........................................................................96
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Datasheet