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80386
Story
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The 80386 was the first 32-bit processor. They were marketed at different speeds and two different types were manufactured. The first called DX, was a fully 32-bit processor, while its reduced version was called SX and had an internal 16-bit bus, with the consequent lower costs.

They were processors to work mainly under a DOS-type operating system.

SOCKET

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QFP100

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Quad Flat Package: This type of package has a square or rectangular shape and is designed to go in a socket or to be welded directly to the base plate. It is very similar to the PLCC used in other processors.

Used in part of the 80386 SX processor range and some 80486 from brands like Cyrix.

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PGA132

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Pin Grid Array: It was the second socket manufactured for x86 processors. It was often accompanied by a PGA68 socket for the insertion of a mathematical coprocessor.

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It was used primarily in 80386 processors.

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pga132-copia.jpg
images.png
Intel.jpg
i386_logo.JPG

80386 SX

386 SX-16.jpg

Intel NG80386SX-16

TYPE: 386

Speed: 16 MHz

Bus: 16 MHz

Max memory: 16MB

Architecture: 32-bit

Transistors: 275,000

Data bus: 16 bits

Package: Plastic QFP

Socket: PQFP100

Manufacturing: 1/1988

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Donation: Sergio Velilla Rubio

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386 SX33 NG80386SX33.jpg

Intel NG80386SX-33

TYPE: 386

Speed: 33 MHz

Bus: 33 MHz

Max memory: 16MB

Architecture: 32-bit

Transistors: 275,000

Data bus: 16 bits

Package: Plastic QFP

Socket: QFP100

Manufacture: 10/1992

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80386 DX

386 DX-25.JPG
386 DX-25 detras.JPG

Intel A80386DX-25 IV

TYPE: 386

Speed: 25 MHz

Bus: 25 MHz

Max memory: 4 GB

Architecture: 32-bit

Package: 132 ceramic pin

Socket: PGA132

sSpec: SX218

Manufacture: 4/1988

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386 DX-33.JPG
386 DX-33 detras.JPG

Intel A80386DX-33 IV

TYPE: 386

Speed: 33 MHz

Bus: 33 MHz

Max memory: 4 GB

Architecture: 32-bit

Package: 132 ceramic pin

Socket: PGA132

sSpec: SX211

Manufacture: 4/1989

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386 DX33 NT80386DX33.jpg
386 DX33 NT80386DX33 detras.jpg

Intel NT80386DX33

TYPE:               386

Speed:          33MHz

Bus:                33MHz

Max memory:       4GB

Architecture:        32 bit

Package:            Plastic QFP

Socket:             QFP100

Manufacturing:         1989

Purchased at:        China

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80387 DX Math Coprocessor

80378 DX-33 SX232.jpg
80387 DX-33 SX232 detras.jpg

Intel A80387DX-33

TYPE: 387 Math Coprocessor

Speed: 33 MHz

Bus: 33 MHz

Max memory: 4 GB

Architecture: 32-bit

Package: 68 ceramic pin

Socket: PGA68

sSpec: SX211

Manufacture: 4/1989

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