The Pentium® processor 75/90/100/120/133/150/166/200 extends the Pentium processor family, providing performance needed for mainstream desktop applications as well as for workstations and servers. The Pentium processor is compatible with the entire installed base of applications for DOS*, Windows*, OS/2*, and UNIX*. The Pentium processor 75/90/100/120/133/150/166/200 superscalar architecture can execute two instructions per clock cycle. Branch prediction and separate caches also increase performance. The pipelined floating point unit delivers workstation level performance. Separate code and data caches reduce cache conflicts while remaining software transparent. The Pentium processor 75/90/100/120/133/150/166/200 has 3.3 million transistors and is built on Intel’s advanced 3.3V BiCMOS silicon technology. The Pentium processor 75/90/100/120/133/150/166/200 has on-chip dual processing support, a local multiprocessor interrupt controller, and SL power management features. The Pentium processor may contain design defects or errors known as errata which may cause the product to deviate from published specifications. Current characterized errata are available upon request.

■ Compatible with Large Software Base
   - MS-DOS*, Windows*, OS/2*, UNIX*
■ 32-Bit CPU with 64-Bit Data Bus
■ Superscalar Architecture
   - Two Pipelined Integer Units Are Capable of 2 Instructions/Clock
   - Pipe-lined Floating Point Unit
■ Separate Code and Data Caches
   - 8-Kbyte Code, 8-Kbyte Write Back Data
   - MESI Cache Protocol
■ Advanced Design Features
   - Branch Prediction
   - Virtual Mode Extensions
■ 3.3V BiCMOS Silicon Technology
■ 4-Mbyte Pages for Increased TLB Hit Rate
■ IEEE 1149.1 Boundary Scan
■ Dual Processing Configuration
■ Functional Redundancy Checking Support
■ Internal Error Detection Features
■ Multi-Processor Support
   - Multiprocessor Instructions
   - Support for Second Level Cache
■ On-Chip Local APIC Controller
   - MP Interrupt Management
   - 8259 Compatible
■ Upgradable with a Pentium® OverDrive® Processor
■ Power Management Features
   - System Management Mode
   - Clock Control
■ Fractional Bus Operation
   - 200-MHz Core/66-MHz Bus
   - 166-MHz Core/66-MHz Bus
   - 150-MHz Core/60-MHz Bus
   - 133-MHz Core/66-MHz Bus
   - 120-MHz Core/60-MHz Bus
   - 100-MHz Core/66-MHz Bus
   - 100-MHz Core/50-MHz Bus
   - 90-MHz Core/60-MHz Bus
   - 75-MHz Core/50-MHz Bus