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PENTIUM® PROCESSOR at iCOMp® INDEX 610\75 MHz PENTIUM PROCESSOR at iCOMP INDEX 735\90 MHz PENTIUM PROCESSOR at iCOMP INDEX 815\ 100 MHz PENTIUM PROCESSOR at iCOMP INDEX 1000\ 120 MHz CONTENTS PAGE 1.0 MICROPROCESSOR ARCHITECTURE OVERVIEW ........... 3 1.1 Pentium® Processor Family Architecture .......................... 3 1.2 Pentium® Processor 75/90/100/120 ....................... 6 2.0 PINOUT ................................. 7 2.1 Pinout and Pin Descriptions .......... 7 2.2 Design Notes ....................... 11 2.3 Quick Pin Reference ................ 11 2.4 Pin Reference Tables ............... 21 2.5 Pin Grouping According to Function .............................. 24 3.0 ELECTRICAL SPECIFICATIONS ..... 3.1 Electrical Differences Between Pentium® Processor 75/90/100/120 and Pentium® Processor 60/66 ..................... 3.2 Absolute Maximum Ratings ......... 3.3 DC Specifications .................. 3.4 AC Specifications .................. 2 25 CONTENTS PAGE 4.0 MECHANICAL SPECIFICATIONS .... 50 5.0 THERMAL SPECIFICATIONS ... ...... 54 5.1 Measuring Thermal Values ......... 54 6.0 FUTURE PENTIUM® OverDrive® PROCESSOR SOCKET SPECIFICATION ....................... 57 6.1 Introduction ........................ 57 6.2 Future Pentium® OverDrive® Processor (Socket 5) Pinout .......... 58 6.3 Electrical Specifications ............ 60 6.4 Absolute Maximum Ratings of Upgrade ............................. 60 6.5 Mechanical Specifications .......... 61 6.6 Thermal Specifications ............. 63 6.7 Upgradability with Socket 5 ......... 63 6.8 Testability .......................... 65 25 26 26 28 I