# MMN80CPU

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8-bit microprocessor clone

MMN80CPU An MMN80CPU processor. General information Launched 1988 Common manufacturer Microelectronica București Performance Max. CPU clock rate 2.5 MHz to 4 MHz Physical specifications Cores 1 Socket 40 pin DIP Architecture and classification Instruction set Z80

**MMN80CPU** is a [Z80](/source/Zilog_Z80)A [microprocessor](/source/Microprocessor) [clone](/source/Clone_(computer_science)), working at 4 [MHz](/source/MHz). It was produced from 1988 onwards at Microelectronica [Bucharest](/source/Bucharest)[1] for the [Romanian](/source/Romania) automation industry and [8 bit computers](/source/ZX_Spectrum) such as HC-91, HC-2000, Tim-S, CoBra, CIP, JET, CUB-Z, aMIC, PRAE and others. It exhibited a unique and unusual behavior: immediately after a reset, it activated the M1 line without using RD or IORQ to reset a PIO controller directly, saving a gate in industrial systems with PIOs.

		- CIP-03

		- CoBra

v t e Zilog Products Z80 series Z80 Z180 Z280 Z800 Z380 eZ80 Z8000 series Z8000 Z80000 Microcontroller Z8 Z8 Encore! Z80182 Encore! 32 Operating systems Z80-RIO Related Z80 compatibles ASCII R800 Hitachi HD64180, Zilog Z64180 NEC µPD780C Sharp LH0080 Toshiba TLCS-870 Rabbit 2000 КР1858ВМ1 U880 MMN80CPU People Federico Faggin Ralph Ungermann Masatoshi Shima

## References

1. **[^](#cite_ref-microel_1-0)** ["microelectronica"](https://microel.ro/) (in Romanian). Retrieved 2019-08-15.

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