Intel 486DX definition processor
One of Intel
's Intel 486
family of microprocessors
(one of the last before the Pentium
). The 486DX has a working built-in floating point unit (FPU). The Intel 486SX
is effectively a DX with the FPU disabled. The DX has a pin to select the external data bus
width (16 or 32).
The Intel 487SX
is a 486DX with a 486SX pinout.