ECSTAC - The ECS prototype microprocessor

Using ECS, we've designed an eight-bit microprocessor that goes really fast (at least, faster than any previous asynchronous microprocessor). It's also the first to incorporate on-chip caches for instructions and data, and an fully synchronous external inferface.

Die Photo

The final testing and layout is complete, and the chip simulations show that it is fully functional. The chip was submitted to the 24 July run of the ESS 0.7um CMOS process, and should be back in approximately 3 months.

Good thing it did come back! We received the chip on the 5th of November, 1996. Testing has commenced. Please stay tuned for a report on the test results. Looks good, though!

Comments and requests can be sent to