U80601

The U80601 is a replica of the Intel 80286 microprocessor by VEB Microelectronics " Karl Marx " Erfurt which was developed and produced by reverse engineering. It was developed in 1986 and produced from 1989 series. His model 80286 U80601 was fully compatible. First functional models were housed in a ceramic housing ( LCCC -68), the processors from the series production were delivered in PLCC -68 plastic package. This CPU has been developed, since the already known 16 bit CPU U8001 could not be used for the preparation of IBM-compatible personal computer in accordance with the AT standard.

It was used in the 3- processor variant ( U880, U8001 and U80601 ) of the computer P8000 Compact, the successor to the P8000. He should also be in the sequel to the EC1834, EC1835 the Robotron be used. As the series production had to contend with many difficulties, only very few processors of this type were ever built.

At the time the public presentation (see sources) belonged to the microprocessor system U80600 following circuits: (western in parentheses analog types)

  • U80601: CPU (Intel 80286 )
  • U80606: bus controller (SAB 82288 )
  • U80608: Error detection and correction, EDC (Intel R8206 )
  • U80610: MMU, dual-port RAM controller (Intel R8207 )

Were also planned:

  • U80605: Token Bus Modem (SAB 82511 )
  • U80607: Token Bus Controller ( SAB 82510 )
  • U80609: bus arbiter ( SAB 82289 )
  • U80611: Advanced DMA Controller ( SAB 82258 )
  • U80612: clock generator (HFO DS80612, SAB 82284 )
  • U80613: FPU (Intel 80287 )
  • U80614: Ethernet Manchester encoder / decoder (Fujitsu MB502A )
  • U80617: Q- bus controller with DMA ( DEC DC336 )
  • U80618: (also known as MME U82062DC ) Winchester Disk Controller WDC ( Western Digital WD 82062 )
  • U80619: Ethernet Data Link Controller (Fujitsu MB8795A )
  • U80620: Integrated Peripheral Controller ( SAB 82C206 CHIPS or )
  • U80621: VGA controller ( Tseng Labs ET3000 )
  • U80622: Triple 6 - Bit Digital -to- Analog Converter - Color Look - Up Table, RAMDAC ( Inmos IMSG171P50 or Analog Devices AD 478)
Chip carrier Memory Management Unit Intel 8087 Manchester-Code Am286
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