Great items for chip collectors !!!

21 pcs. - Ultra RARE Russian Soviet CPU Clone of famous Intel 8080 Full Chipset. 
MADE in USSR by different plants.
See pics from top to bottom, from the left to right (5 small ICs <24pin - last in list) :
 
KR580VM80A - (Rodon plant, 1990)  8-bit CPU - Intel 8080a Russian clone
KR580IK55 - (Kvazar plant, 1983) parallel peripheral interface - Intel 8255 Russian clone, later renamed to KR580VV55
KR580VV55 - (Kvantor plant, 1991) parallel peripheral interface - Intel 8255 Russian clone, earlier named KR580IK55
KR580IK57 - (Kvazar plant, 1983) programmable DMA controller - Intel 8257 Russian clone, later renamed to KR580VT57
KR580VT57 - (Kvantor plant, 1991) programmable DMA controller - Intel 8257 Russian clone, earlier named KR580IK57
  KR580VG75 - (Unknown/unmarked, 1991) CRT display controller - Intel 8275 Russian clone
  KR580VV79 - (Kvantor plant, 1992) keyboard and indication controller - Intel 8279 Russian clone
KR580VK91A - (Unknown/unmarked plant, 1991) system bus arbiter - Intel 8291a Russian clone
KR580VT42 - (Gamma plant, 1991) - dynamic memory controller (3242 analog)
KR580VK28 - (Gamma plant, 1990) system controller - Intel 8228 Russian clone
 KR580VK38 - (Gamma plant, 1991) system controller - Intel 8238 Russian clone
KR580VV51A - (Rodon plant, 1991) serial peripheral interface - Intel 8251 Russian clone
 KR580VN59 - (Unknown/unmarked plant, "Made in USSR", 1983) priority interrupt controller - Intel 8259 Russian clone
 KR580VN59 - (Kvantor plant, 1984) priority interrupt controller - Intel 8259 Russian clone
 KR580VI53 - (Kvazar plant, 1995) programmable timer - Intel 8253 Russian clone
 KR580VI53D - (Kvantor plant, 1991) programmable timer - Intel 8253 Russian clone

 KR580VA86 - (Gamma plant, 1990) receivers/transmitters - Intel 8286 Russian clone
 KR580VA87 - (Gamma plant, 1991) receivers/transmitters - Intel 8287 Russian clone
 KR580IR82 - (Gamma plant, 1990) latch registers - Intel 8282 Russian clone
 KR580IR83 - (Gamma plant, 1991) latch registers - Intel 8283 Russian clone 
  KR580GF24 - (Gamma plant, 1987) clock generator - Intel 8224 Russian clone
   
Great items for chip collectors !!!
  
For more information, please visit - cpu-world.com/CPUs/8080/MANUF-USSR.html
 

Some history :
 
KR580 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 KR580: 
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.
 
KR580 series includes a large number of chips that allow simple connection of 
different devices and maintain effective data exchange between computer parts:
 
KR580GF24 - clock generator (16 pins, 8284 analog)
KR580VK28/38 - system controllers (8228/8238 analogs)
KR580VG18, KR580VG92/92A - system controllers for different bus types (28 pins, 8218/8292 analog)
KR580IR82/83 - latch registers (20 pins, 8282/8283 analog)
KR580VA86/87 - receivers/transmitters (20 pins, 8286/8287 analog)
KR580VI53 - programmable timer (8253 analog, 3 channels, 24 pins)
KR580VV55/55A - parallel peripheral interface (8255 analog, 3 channels, 40 pins)
KR580VV51A - serial peripheral interface (8251 analog, 28 pins)
KR580VT57 - programmable DMA controller (8257 analog, 4 channels, 40 pins)
KR580VN59/59A - priority interrupt controller (8 interrupt request inputs, 28 pins)
KR580VG72 - floppy drive controller (8272 analog)
KR580VG75 - CRT display controller (8275 analog)
KR580VV79 - keyboard and indication controller (8279 analog)
KR580VK91/91A - system bus arbiters (8291 analog)
KR580VT42 - dynamic memory controller (3242 analog)
KR580VR43 - 4x4 I/O compander (8243 analog)

On the base of KR580 microprocessor set, Soviet engeneers designed "Korvet" computer, 
intended for teaching pupils Basic programming language. 
The story of it's creation was told above. In addition to school software there was a text processor "Supertext"  
(Final Word analog) and a russian version of dBase. 
Soon, a learning computer complex "Korvet" was built on the base of this computer. 
The complex had been widely used in schools and colleges all around the former USSR territory until probably year 1998-2000.

Soviet Union developed localized russian versions of CP/M-80 for KR580IK80 processors - OS-1800 
(used in SM-180x computers) and MicroDOS. 
Also, a software pack was written that contained a debugger, a screen text editor, 
a macroassembler, PL/M and Fortran compilers, Basic interpreter, object modules, support programs, and other service software.

CPUs/ICs like NEW, OLD STOCK, in working order.