521 datasheet(6/96 Pages) INTEL

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Datasheet

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

2-10 VCC Static and Transient Tolerance for 775_VR_CONFIG_04B Processors ........................... 29

2-11 GTL+ Asynchronous Signal Group DC Specifications .............................................................. 31

2-12 GTL+ Signal Group DC Specifications ....................................................................................... 31

2-13 PWRGOOD and TAP Signal Group DC Specifications .............................................................. 32

2-14 VTTPWRGD DC Specifications..................................................................................................32

2-15 BSEL [2:0] and VID[5:0] DC Specifications ................................................................................ 32

2-16 BOOTSELECT DC Specifications .............................................................................................. 32

2-17 VCC Overshoot Specifications ................................................................................................... 33

2-18 GTL+ 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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