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Cyrix 387 Processors

 

Cx87SLC

Package 80—pin PQFP
Core Speed 25MHz
Cx87SLC-V25QP

387DX

Package 68-pin ceramic PGA
Core Speed 16MHz 387DX-16
Core Speed 20MHz 387DX-20
Core Speed 25MHz 387DX-25
Core Speed 33MHz 387DX (387DX-33)
Core Speed 40MHz 387DX+ (387DX-40)

AutoMATH

Package
Comment:
121-pin ceramic PGA
What is this?
Core Speed 33MHz CyrixAutoMATH-33

Cx-83D87

Package 68-pin ceramic PGA
Core Speed 16MHz FasMath CX-83D87-16-GP Purple Metal Cap
Core Speed 16MHz FasMath CX-83D87-16-GP Gold Cap
Core Speed 16MHz FasMath CX-83D87-16-GP-XA
Core Speed 20MHz FasMath CX-83D87-20-GP Gold Cap
Core Speed 20MHz FasMath CX-83D87-20-GP Purple Metal Cap
Core Speed 20MHz FasMath CX-83D87-20-GP-KN
Core Speed 20MHz FasMath CX-83D87-20-GP-XA
Core Speed 25MHz FasMath CX-83D87-25-GP Gold Cap
Core Speed 25MHz FasMath CX-83D87-25-GP Black Metal Cap
Core Speed 25MHz FasMath CX-83D87-25-GP Purple Metal Cap
Core Speed 25MHz FasMath CX-83D87-25-GP-KN
Core Speed 25MHz FasMath CX-83D87-25-GP-XA
Core Speed 33MHz FasMath CX-83D87-33-GP Black Metal Cap
Core Speed 33MHz FasMath CX-83D87-33-GP Purple Metal Cap
Core Speed 33MHz FasMath CX-83D87-33-GP-KN
Core Speed 33MHz FasMath CX-83D87-33-GP-XA
Core Speed 40MHz FasMath CX-83D87-40-GP (CPGA) Black Metal Cap
Core Speed 40MHz FasMath CX-83D87-40-GP (CPGA) Purple Metal Cap
Core Speed 40MHz FasMath CX-83D87-40GP
PQFP on 68—pin PGA adapter
Core Speed 40MHz FasMath CX-83D87-40+-GP (CPGA)

387SX

Package 68-pin ceramic PGA
Core Speed 16MHz Cx387SX—16
Core Speed 20MHz Cx387SX-20
Core Speed 25MHz Cx387SX-25
Core Speed 33MHz Cx387DX-33

Cx-83S87

Package 68-pin plastic LCC
Core Speed 16MHz FasMath CX-83S87-16-JP
Core Speed 16MHz FasMath CX-83S87-16-KP
Core Speed 20MHz FasMath CX-83S87-20-JP
Core Speed 20MHz FasMath CX-83S87-20-KP
Core Speed 25MHz FasMath CX-83S87-25-JP
Core Speed 33MHz FasMath CX-83S87-33-JP
Core Speed 40MHz FasMath CX-83S87-40-JP

Cx87DLC

Package Plastic QFP on 68—pin PGA adapter
Core Speed 33MHz CX-87DLC-33QP
Core Speed 40MHz CX-87DLC-40QP

EMC87

Package
Comment:
121-pin ceramic PGA
Extended Math-Co-Processor
Core Speed 16MHz FasMath CX-EMC87-16-GP
Core Speed 25MHz FasMath CX-EMC87-25-GP
Core Speed 33MHz FasMath CX-EMC87-33-GP
Core Speed 33MHz CyrixAutoMATH-33
Core Speed 40MHz FasMath CX-EMC87-40-GP

Cx487DLC

Package 68-pin ceramic PGA
Core Speed 33MHz CX-487DLC-33GP
Core Speed 40MHz CX-487DLC-40GP

Cx4C87DLC

Package 68-pin ceramic PGA
Core Speed 25MHz Cx-4C87DLC-25
Core Speed 33MHz Cx-4C87DLC-33
Core Speed 40MHz Cx-4C87DLC-40