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Intel 80387 FPU

Intel 387SX
N80387SX-16
N80387SX-16 w/o S-Spec number
N80387SX-20
N80387SX (16-25 Mhz)

Intel 387DX
A80387DX 16-33
A80387DX-20
A80387DX-25
A80387DX-33



387 SX


N80387SX-16






  Frequency: 16 MHz
  Bus: 16 MHz
  Codename: -
  L1 Cache: -
  L2 Cache: -
  ID: SX237
  Package: PLCC-68
  Socket: -
  Technology: 1 mcm
  Year: 1990

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N80387SX-16 w/o S-Spec number






  Frequency: 16 MHz
  Bus: 16 MHz
  Codename: -
  L1 Cache: -
  L2 Cache: -
  ID: -
  Package: PLCC-68
  Socket: -
  Technology: 1 mcm
  Year: 1989

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N80387SX-20






  Frequency: 20 MHz
  Bus: 20 MHz
  Codename: -
  L1 Cache: -
  L2 Cache: -
  ID: SZ369
  Package: PLCC-68
  Socket: -
  Technology: 1 mcm
  Year: 1992

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N80387SX (16-25 Mhz)






  Frequency: 25 MHz
  Bus: 25 MHz
  Codename: -
  L1 Cache: -
  L2 Cache: -
  ID: -
  Package: PLCC-68
  Socket: -
  Technology: 1 mcm
  Year: 1986

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387 DX


A80387DX 16-33






  Frequency: 16-33 MHz
  Bus: 16-33 MHz
  Codename: -
  L1 Cache: -
  L2 Cache: -
  ID: -
  Package: CPGA-68
  Socket: -
  Technology: 1 mcm
  Year: 1988

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A80387DX-20






  Frequency: 20 MHz
  Bus: 20 MHz
  Codename: -
  L1 Cache: -
  L2 Cache: -
  ID: SX105
  Package: CPGA-68
  Socket: -
  Technology: 1.5 mcm
  Year: 1986

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A80387DX-25






  Frequency: 25 MHz
  Bus: 25 MHz
  Codename: -
  L1 Cache: -
  L2 Cache: -
  ID: SX106
  Package: CPGA-68
  Socket: -
  Technology: 1.5 mcm
  Year: 1989

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A80387DX-33






  Frequency: 33 MHz
  Bus: 33 MHz
  Codename: -
  L1 Cache: 8 KB
  L2 Cache: -
  ID: -
  Package: CPGA-68
  Socket: -
  Technology: 1 mcm
  Year: 1990

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