The U880 is an 8-bit microprocessor that was manufactured by VEB Mikroelektronik "Karl Marx" Erfurt in the German Democratic Republic. Production of the U880 started in 1980 at VEB Funkwerk Erfurt. The U880 is an unlicensed clone of the Zilog Z80 microprocessor, also supporting illegal opcodes and bugs, except for very minor differences like not setting the CY flag for the OUTI command.
An early U880D microprocessor, manufactured in December 1981
Die of the U880; size 4513 µm x 4251 µm (first die shrink 1984); chip inscription at the bottom of the image: "U880/5 HL JH 84"
Die of the U880; size 3601 µm x 3409 µm (second die shrink 1990); chip inscription at the bottom of the image: "U880/6 HL MME 1990"
UB880D S1 hobbyist version (1989)
Kombinat Mikroelektronik Erfurt
VEB Kombinat Mikroelektronik Erfurt was an important manufacturer of active electronic components in East Germany. It should not be confused with the more well-known VEB Kombinat Robotron Dresden which used integrated circuits from Kombinat Mikroelektronik in its computers.
Sculpture "Hand with chip" at the entrance of VEB Mikroelektronik "Karl Marx" Erfurt
Cleanroom at VEB Mikroelektronik "Karl Marx" Erfurt (1989)
U830Cm (VEB ZFTM Dresden, 1986)
U840PC02 (VEB Mikroelektronik "Karl Marx" Erfurt, 1989)
