Product Descriptions

The Intel386 DX Microprocessor is an entry-level 32-bit microprocessor designed for single-user applications and operating systems such as MS-DOS and Windows. The 32-bit registers and data paths support 32-bit addresses and data types. The processor addresses up to four gigabytes of physical memory and 64 terabytes (2** 46) of virtual memory. The integrated memory management and protection architecture includes address translation registers, multitasking hardware and a protection mechanism to support operating systems. Instruction pipelining, on-chip address translation, ensure short average instruction execution times and maximum system throughput. 

The Intel386 DX CPU offers new testability and debugging features. Testability features include a self-test and direct access to the page translation cache. Four new breakpoint registers provide breakpoint traps on code execution or data accesses, for powerful debugging of even ROM-based systems. 

Object-code compatibility with all 8086 family members (8086, 8088, 80186, 80188, 80286) means the Intel386 DX offers immediate access to the world’s largest microprocessor software base.

Y Flexible 32-Bit Microprocessor 

Ð 8, 16, 32-Bit Data Types 

Ð 8 General Purpose 32-Bit Registers

Y Very Large Address Space

Ð 4 Gigabyte Physical 

Ð 64 Terabyte Virtual

Ð 4 Gigabyte Maximum Segment Size

Y Integrated Memory Management Unit 

Ð Virtual Memory Support 

Ð Optional On-Chip Paging

Ð 4 Levels of Protection 

Ð Fully Compatible with 80286 

Y Object Code Compatible with All 8086 Family Microprocessors 

Y Virtual 8086 Mode Allows Running of 8086 Software in a Protected and Paged System 

Y Hardware Debugging Support 

Y Optimized for System Performance

Ð Pipelined Instruction Execution 

Ð On-Chip Address Translation Caches 

Ð 20, 25 and 33 MHz Clock 

Ð 40, 50 and 66 Megabytes/Sec Bus Bandwidth 

Y Numerics Support via Intel387TM DX Math Coprocessor

Y Complete System Development Support 

Ð Software: C, PL/M, Assembler System Generation Tools 

Ð Debuggers: PSCOPE, ICETM-386 

Y High Speed CHMOS IV Technology 

Y 132 Pin Grid Array Package

Y 132 Pin Plastic Quad Flat Package

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