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80386 - Intel
Intel 80386 | |
Intel A80386DX-16 ΣΣ | |
Developer | Intel |
Manufacturer | Intel |
Type | Microprocessors |
Introduction | June 1984 (announced) October 1985 (launch) |
Production | 1985-2008 |
Architecture | x86 |
ISA | IA-32 |
µarch | 80386 |
Word size | 32 bit 4 octets
8 nibbles |
Process | 1.5 µm 1,500 nm , 1 µm0.0015 mm 1,000 nm
0.001 mm |
Technology | CMOS |
Clock | 12 MHz-33 MHz |
Package | PGA-132, PQFP-132 |
Succession | |
← | → |
80286 | 80486 |
The 80386, also i386 and 386, (pronounced eighty-three-eighty-six) was a family of 32-bit 3rd-generation x86 microprocessors introduced by Intel in 1985 as a successor to 80286. These processors provided were fully backwards compatible with previous generations of x86 processors but introduced a number of major new features including enhancements to protected mode and virtual 8086 mode. The changes brought about by 386 became the standard for all future 32-bit x86 processors, dubbed i386-architecture.
Contents
History
This section is empty; you can help add the missing info by editing this page. |
Members
Single-word eXternal
Model | Introduction | Ext. Bus | Frequency | Notes |
---|---|---|---|---|
80386SX-16 | June 1988 | 16-bit | 16 MHz | |
80386SX-20 | June 1988 | 16-bit | 20 MHz | |
80386SX-25 | June 1988 | 16-bit | 25 MHz | |
80386SX-33 | October 1992 | 16-bit | 33 MHz | |
80386SL-20 | October 1992 | 16-bit | 33 MHz | |
80386SL-25 | October 1992 | 16-bit | 33 MHz |
Double-word eXternal
Model | Introduction | Ext. Bus | Frequency | Notes |
---|---|---|---|---|
80386-12 | October 1985 | 32-bit | 12 MHz | Renamed with "DX" suffix upon the introduction of the "SX" version. |
80386-16 | 1985 | 32-bit | 16 MHz | |
80386-20 | February 1987 | 32-bit | 20 MHz | |
80386DX-16 | 1988 | 32-bit | 16 MHz | |
80386DX-20 | 1988 | 32-bit | 20 MHz | |
80386DX-25 | 1988 | 32-bit | 25 MHz | |
80386DX-33 | 1988 | 32-bit | 33 MHz | |
80386DX-16 IV | 32-bit | 16 MHz | ||
80386DX-20 IV | 32-bit | 20 MHz | ||
80386DX-25 IV | 32-bit | 25 MHz | ||
80386DX-33 IV | 32-bit | 33 MHz |
Suppport Chips
Part | Description |
---|---|
A82370-16 | 32-bit 8-channel DMA controller @ 16 MB/sec |
82380-16 | 32-bit DMA controller with Programmable Interrupt Controller (PIC) @ 16 MHz |
82380-20 | 32-bit DMA controller with Programmable Interrupt Controller (PIC) @ 20 MHz |
82380-25 | 32-bit DMA controller with Programmable Interrupt Controller (PIC) @ 25 MHz |
82384-16 | Clock generator @ 16 MHz |
82384-20 | Clock generator @ 20 MHz |
82385 | Cache Controller |
Clones
This list is incomplete; you can help by expanding it.
Architecture
This section is empty; you can help add the missing info by editing this page. |
Facts about "80386 - Intel"
designer | Intel + |
first announced | June 1984 + |
first launched | October 1985 + |
full page name | intel/80386 + |
instance of | microprocessor family + |
instruction set architecture | IA-32 + |
main designer | Intel + |
manufacturer | Intel + |
microarchitecture | 80386 + |
name | Intel 80386 + |
package | PGA-132 + and PQFP-132 + |
process | 1,500 nm (1.5 μm, 0.0015 mm) + and 1,000 nm (1 μm, 0.001 mm) + |
technology | CMOS + |
word size | 32 bit (4 octets, 8 nibbles) + |