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FPU class ICs
FPU information
FPUs (Floating Point Units) are mathematical coprocessors for CPUs without built-in math units. They have their own socket on the mainboard or are piggy-packed with the CPU (like the Cyrix Cx487S-40QP in this collection).
  add/correct FPU info  
108 FPU chips in collection: hide thumbnails
 AMD
  FPU
   P80C287-10
 Chips and Technologies
  FPU
   Super Math J38700DX B 33
 Cypress
  SPARC FPU
   SPARC FPU CY7C602-40
 Cyrix
  FPU
   FasMath CX-82S87-NP-SV
   387DX-33
   FasMath CX-83D87-20-GP-XA
   FasMath CX-83D87-25 GP
   FasMath CX-83D87-25-GP-KN
   FasMath CX-83D87-25-GP-XA
   FasMath CX-83D87-33 GP
   FasMath CX-83D87-33-GP, black
   FasMath CX-83D87-33-GP-KN
   FasMath CX-83D87-40-GP
   387DX+
   FasMath CX-83S87-16-JP
   FasMath CX-83S87-16-KP
   FasMath CX-83S87-20-JP
   FasMath CX-83S87-20-KP
   FasMath CX-83S87-25-JP
   FasMath CX-83S87-33-JP
   Cx487DLC-33GP
   Cx87DLC-33QP
   Cx87DLC-40QP
   Cx487S-33QP
   Cx487S-40QP
 IDT
  R3010 FPU
   79R3010A-12QJ
   79R3010L-33G
 IIT
  FPU
   2C87-8
   2C87-10
   2C87-12
   2C87-20
   3C87-20
   3C87-25
   3C87-33
   3C87-33 (Gold)
   3C87-40
   3C87SX-16
   3C87SX-20
   3C87SX-25
   3C87SX-33
   XC87SLC-33
   XC87DLC-33
   4C87DLC-33
   4C87DLC-40
   X2 487DLX25/50
 Intel
  FPU
   C8087
   D8087-1
   C8087-2
   C8087-3
   D80C187-16
   C80287-3
   D80287-6
   D80287-8
   C80287-10
   D80287-10
   D80C287A-12
   C80287XL
   C80287XL (i287 XL logo)
   A80387-16
   A80387-16B
   A80387-20
   A80387DX-20
   A80387DX-20 w/ sSpec
   A80387DX-25
   A80387DX-33
   A80387DX 16-33
   N80387SX-16
   N80387SX-20
   N80387SX (16-25MHZ)
   N80387SX-33
   N80387SL
   A80487SX
 Intergraph
  Clipper FPU
   Clipper C4 FPU
 Motorola
  6888x FPU
   6888x FPU XC68881RC12
   6888x FPU MC68881RC16A
   6888x FPU MC68881RC16B
   6888x FPU MC68881RC20D
   6888x FPU MC68881RC25B
   6888x FPU MC68882FN20A
   6888x FPU MC68882RC33A
 NEC
  VR3010 FPU
   D30311R-33 VR3010A-33
   D30311R-40 VR3010A-40
 NexGen
  FPU
   Nx587
 Performance Semi
  R3010 FPU
   PR3010A-25PGC
   PR3010-33PGC
 Siemens
  R3010 FPU
   R3010-25-A
   R3010-25-QF
   R3010A-25-QF
 Texas Instruments
  SPARC FPU
   SPARC FPU TMX390C602AGA
 ULSI
  FPU
   Math-Co DX
   Math-Co SX, 20 MHz
   Math-Co US83C87, 25 MHz
   Math-Co US83C87, 25 MHz, variant
   Math-Co US83C87, 25 MHz, USA
   Math-Co US83C87, 33 MHz
   Math-Co DX, 33 MHz
   Math-Co DX, 40 MHz
   Math-Co DX, 40 MHz, USA
   Math-Co DX, 40 MHz, variant
   US83C87 DX/DLC, 40 MHz
   US83C87 DX/DLC, 40 MHz, variant
   US83C87-C DX/DLC, 40 MHz
 Weitek
  386 FPU
   386 FPU Abacus 3167, 20 MHz
   386 FPU Abacus 3167, 25 MHz
   386 FPU Abacus 3167, 33 MHz
  SPARC FPU
   SPARC FPU 3170 020-GCD
   SPARC FPU 3170 025-GCD
   SPARC FPU 3172A 025-GCD