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580VM80 - Rare USSR Soviet Russian Gold Ceramic Clone of Intel 8080 8-bit CPU Kvantor plant 1992
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RARE Russian Soviet CPU Clone of famous Intel 8080 - 8-bit processor (main CPU). MADE in USSR.
580VM80 - Rare USSR Soviet Russian Gold Ceramic clone (Kvantor plant, Military - rhombus sign, 1992) of 8-bit Intel 8080 processor
For more information, please visit - www.cpu-world.com/CPUs/8080/MANUF-USSR.html
Some history :
580 was one of the most widespread microprocessor sets in Soviet Union in the end of 1980s.
A lot of computers had been created on the base of 580:
personal ("Magik" , "Irisha" , "Mikrosha" etc.),
general purpose ("SM-180x" , "ES7970" , "Electronika-K1" ,
"Iskra-226" , "Radio-86RK" etc.), school ("Korvet" ).
Monocrystal microprocessor KR580IK80 is the basis of the set,
it has 16-bit address bus and 8-bit data bus, as Intel 8080/8085 and Zilog Z80 processors,
and is compatible with them by command set and machine code.
Thus, any software written for 8080 can be run on KR580IK80.
Furthermore, KR580IK80 has 40-pin package identical to 8080 and can be used in 8080 mainboards
(Earlier version of the processor - K580IK80 - has 48 pins and is not compatible with 8080).
A model of this microprocessor called KR580IK80A
(later renamed to KR580VM80A ) is analogical to 8080A processor.
580 series includes a large number of chips that allow simple connection of
different devices and maintain effective data exchange between computer parts:
580GF24 - clock generator (8284 analog, 15 pins)
580VK28/38 - system controllers (8228/8238 analogs)
580VG18, 580VG92/92A - system controllers for different bus types (28 pins)
580IR82/83 - latch registers (20 pins)
580VA86/87 - receivers/transmitters (20 pins)
580VI53 - programmable timer (8253 analog, 3 channels, 24 pins)
580VV55/55A - parallel peripheral interface (8255 analog, 3 channels, 40 pins)
580VV51/51A or 580IK51/51A - serial peripheral interface (8251 analog, 28 pins)
580VT57 - programmable DMA controller (8257 analog, 4 channels, 40 pins)
580VN59/59A - priority interrupt controller (8 interrupt request inputs, 28 pins)
580VG72 - floppy drive controller (8272 analog)
580VG75 - CRT display controller (8275 analog)
580VV79 - keyboard controller
580VK91/91A - system bus arbiters
580VT42 - dynamic memory controller
Great item for chip collectors !!!
CPU from the Old Stock, in working order.
