Intel 80386EX

The Inteli386EX (80386EX) is a variant of the Intel 386microprocessor designed for embedded systems. Introduced in August 1994 and was successful in the market, being used aboard several orbitingsatellites and microsatellites.

Intel's previous x86 CPU for the embedded market was the Intel 80186. Like the 80186, the 80386EX integrates several peripherals including a timer, DMA controller, and interrupt controller. This vastly reduces the number of system components required for implementing a 80386EX-based system. Unlike the 80186, the peripherals of the 80386EX are compatible with standard PC/AT components.

Intel did not manufacture another integrated x86 processor until 2007, when it confirmed the Enhanced Pentium M-based Tolapai (EP80579).

The Intel386 EX processor was planned in sample for April 1994 with production in third quarter for US$39 in 5,000-piece quantities.