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East German CPU’s

(Updated 10/30/2016)
Thanks to Mr Rüdiger for his help

East Germany was a powerhouse of CPU development for the Soviet States.
There were 3 institutions manufacturing IC’s in East Germany (their names changed a few times making it appear there were more). One each in Frankfurt (Oder), Erfurt, and Dresden.

The plant in Erfurt  was initially called VEB Funkwerk Erfurt, short FWE. In 1983 the plant was renamed VEB Mikroelektronik “Karl Marx“ Erfurt, short MME. Its products were marked with the stylized ‘fwe’, the letters ‘FWE’, or the letters ‘MME’. From 1992 until 1999 the plant continued under the name Thesys Gesellschaft für Mikroelektronik mbH and the ICs were marked THESYS.

The plant in Dresden was initially Institut für Mikroelektronik Dresden (IMD) and used the logic gate logo.  In around 1980 IMB became VEB Zentrum für Forschung und Technologie Mikroelektronik (ZFTM).In 1986 ZFTM became part of the Carl Zeiss Jena organization (the other two plants remained part of an organization called Kombinat Mikroelektronik). The Carl Zeiss logo was apparently only used for the 1Mbit DRAM chips from Dresden (U61000).  In 1987 the plant was again renamed, this time to VEB Forschungszentrum Mikroelektronik Dresden (ZMD).

It helps to remember that IC’s were made different in East Germany.  There was not so much corporations as we think of them in the West such as Intel or AMD that made this or that.  In East Germany (and the USSR) IC’s (and most everything else) were made by institutions, that were typically a government organization, or sanctioned by the government to do/make certain things.  These could be changed, consolidated, opened/closed at the whim of the government resulting in a lot of confusion in identity.  Add to that the changes brought with the fall of communism, and these institutions transition to modern corporation and you get some very interesting collecting opportunities.

Often East German CPUs will be referred to as DDR (Deutsche Demokratische Republik),
the initials of the East German state.

Initials Name
Logo
Notes:
Frankfurt/Oder
HFO
(1971-~1991)
Halbleiterwerk Frankfurt/Oder Stylized ‘f’ Logo
Dresden
IMD
(pre-1980)
Institut für Mikroelektronik Dresden
 Predecessor to ZTFM
ZTFM
(1980-1986
VEB Zentrum für Forschung und Technologie Mikroelektronik Dresden
 Developed from IMD, consolidated under Carl Zeiss Jena in 1986
ZMD
(1987+)
VEB Forschungszentrum Mikroelektronik Dresden
Carl Zeiss logo used primarily on U61000s Typically ICs used the ZTFM logo or were marked ‘ZMD’
Erfurt
FWE
(pre-1983)
VEB Funkwerk Erfurt Often Marked FWE
MME
(1983-1992)
 VEB Mikroelektronik “Karl Marx“ Erfurt
Also marked FWE or MME
THESYS
(1992-1999)
Thesys Gesellschaft für Mikroelektronik mbH thesys logo Formerly FWE/MME also marked ‘THESYS’

East German CPUs are dated in the following manner:

Year Value Month Value
1975 F January 1
1976 H February 2
1977 I (J) March 3
1978 K April 4
1979 L May 5
1980 M June 6
1981 N July 7
1982 P August 8
1983 R September 9
1984 S October 0
1985 T November N
1986 U December D
1987 V

This UB880D was made in December 1988
1988 W
1989 X
1990 A
1991 B

Return to Eastern Bloc ID Guide

DDR CPUs and MCUs

FWEU808D
  • Western equivalent: Intel 8008
  • Clock frequency: 740KHz
  • Package: PDIP418
  • Voltage: 5V

 

MME UB880D

  • Western equivalent: Zilog Z80
  • Clock frequency: 2.5 MHz
  • Package: PDIP40
  • Voltage: 5V

 

MME UA880D

  • Western equivalent: Zilog Z80A
  • Clock frequency: 4MHz
  • Package: PDIP40
  • Voltage: 5V

 

MME VB880D

  • Western equivalent: Zilog Z80 mil spec
  • Clock frequency: 2.5 MHz
  • Package: PDIP40
  • Voltage: 5V

The VB880D is a military processor. That means it has an enhanced temperature range to operate in of -25 to 85°C.

 

MME U880D

  • Western equivalent: Zilog Z80
  • Clock frequency: 1MHz
  • Package: PDIP40
  • Voltage: 5V

 

MME UB8001C

  • Western equivalent: Zilog Z8001 CS
  • 16-bit CPU
  • Clock frequency: 4MHz
  • Package: CDIP48
  • Voltage: 5V

MME UB8002D

  • Western equivalent: Zilog Z8002 DS
  • Clock frequency: 4MHz
  • 16-bit CPU
  • Package: PDIP48
  • Voltage: 5V

 

MME UB8810D

  • Western equivalent: Zilog Z8601
  • Clock frequency: 8MHz
  • 8-bit MCU
  • Package: PDIP40
  • Voltage: 5V

 

MME UC8810D

  • Western equivalent: None
  • Clock frequency: 5MHz
  • 8-bit MCU
  • Package: PDIP40
  • Voltage: 5V

 

MME UB8820M

  • Western equivalent: None
  • Clock frequency: 8MHz
  • 8-bit MCU
  • Package: ZIP64
  • Voltage: 5V

 

MME UB8830D

  • Western equivalent: None
  • Clock frequency: 8MHz
  • 8-bit MCU with BASIC interpreter
  • Package: PDIP40
  • Voltage: 5V

 

ZMD U8032 C1

  • Western equivalent: none
  • 16-bit Arithmetic Co-processor
  • Clock frequency: 4MHz
  • Package: CDIP40
  • Voltage: 5V

This list is not complete but is meant to give you an idea of what is was going on outside the US.
For more chip comparisons please go to:

I would like to thank Genna of CPU-World and Frassal (from Germany) as for their pictures that made this possible.