INTEL 80386

• The intel 80386 is the 1st 32-bit microprocessor introduced in 1985
• It is a logical extension of 8086 & 80286
• It has 32-bit data bus & 32 bit internal registers
• 32-bit ALU
• It is a 132 pin IC available in PGA (Pin Grid Array) package
• It uses a single +5v DC for the operation
• It has 32-bit non-muxed address bus
• It has break point registers
• It is capable of addressing 4 GB of Physical memory & 64 TB of virtual memory
• It is fabricated using CHMOS-III technology
• I contains 129 basic instructions
• It is software object code compatible with 8086 & 80286
• It contains 275,000 transistors on a single chip