Intel - FPU for 386DX
| Name: | Intel A80387-20 |
| Family: | x86 |
| Freqence: | 20 Mhz |
| Bus: | 20 Mhz |
| Made: | 9, 1988 |
| Package: | 68 pin CPGA |
| Spec Nr.: | SX030 |
| Name: | Intel A80387DX-20 |
| Family: | x86 |
| Freqence: | 20 Mhz |
| Bus: | 20 Mhz |
| Made: | 27, 1989 |
| Package: | 68 pin CPGA |
| Spec Nr.: | SX105 |
| Name: | Intel A80387DX-25 |
| Family: | x86 |
| Freqence: | 25 Mhz |
| Bus: | 25 Mhz |
| Made: | 29, 1990 |
| Package: | 68 pin CPGA |
| Name: | Intel A80387DX-33 |
| Family: | x86 |
| Freqence: | 33 Mhz |
| Bus: | 33 Mhz |
| Made: | 22, 1990 |
| Package: | 68 pin CPGA |
| Name: | Intel A80387DX 16-33 |
| Family: | x86 |
| Freqence: | 16/20/25/33 Mhz |
| Bus: | 16/20/25/33 Mhz |
| Made: | 44, 1992 |
| Package: | 68 pin CPGA |