MicroVAX 78032

The MicroVAX 78032, also known as DC333, is a 32 -bit microprocessor which was used by Digital Equipment Corporation ( DEC) in the from 1985 featured mini computers MicroVAX II. The microprocessor has been exclusively used in DEC minicomputers and was not available for other computer manufacturers. The MicroVAX 78032 was the first single-chip processor which included a subset of the instruction set of the Virtual Address eXtension ( VAX ) - before multi-chip processors were at DEC usual for this application - and which was developed and produced by DEC. He was also the first microchip which Chip Protection Act ( SCPA ) was registered in 1984 in the U.S. under the Semiconductor.

The MicroVAX 78032 consists of field effect transistors 125,000 which are located on one die of a surface area of ​​8.7 · 8.6 mm ( 74.82 mm2). It was produced in a DEC -specific " ZMOS process," an NMOS version with a feature size of 3 microns in NMOS logic. The die is packaged in a 68 pin SMD package. The MicroVAX 78032 can 78132 ( DC337 ) are combined for floating-point calculations with the prepared also from DEC MicroVAX math coprocessor. Both processors operate at a clock frequency of 5 MHz.

The microprocessor in 1989 in the German Democratic Republic ( DDR) under the name MME U80701 reconstructed by reverse engineering without a license and produced in small quantities, so the MicroVAX II system available K in 1820, bypassing the CoCom embargo in the GDR making. After the turn, the work was stopped it.