The K1810VM86 (russian: К1810ВМ86, italic=yes) is a

Soviet The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen nation ...

16-bit

microprocessor A microprocessor is a computer processor where the data processing logic and control is included on a single integrated circuit, or a small number of integrated circuits. The microprocessor contains the arithmetic, logic, and control circ ...

, a clone of the

Intel Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California. It is the world's largest semiconductor chip manufacturer by revenue, and is one of the developers of the x86 seri ...

8086 The 8086 (also called iAPX 86) is a 16-bit microprocessor chip designed by Intel between early 1976 and June 8, 1978, when it was released. The Intel 8088, released July 1, 1979, is a slightly modified chip with an external 8-bit data bus (allowi ...

CPU with which it is binary and pin compatible. It was developed between 1982 and 1985. The original K1810VM86 supported a clock frequency of up to 5 MHz while up to 8 MHz were allowed for the later K1810VM86M (''К1810ВМ86M''; corresponding to Intel 8086-2). The K1810VM86 was manufactured plastic 40-pin dual in-line package (as KR1810VM86 / ''КР1810ВМ86'') or in a 40-pin ceramic dual in-line package (as KM1810VM86 / ''КМ1810ВМ86'' for the commercial version or M1810VM86 / ''М1810ВМ86'' for the military version). A clone of the related

Intel 8088 The Intel 8088 ("''eighty-eighty-eight''", also called iAPX 88) microprocessor is a variant of the Intel 8086. Introduced on June 1, 1979, the 8088 has an eight-bit external data bus instead of the 16-bit bus of the 8086. The 16-bit registers and ...

with its 8-bit bus was manufactured as the K1810VM88 (russian: К1810ВМ88, italic=yes), also in plastic and ceramic

packages Package may refer to: Containers or Enclosures * Packaging and labeling, enclosing or protecting products * Mail, items larger than a letter * Chip package or chip carrier * Electronic packaging, in electrical engineering * Automotive package, ...

Technology and support chips

The K1810VM86 was manufactured with an n-MOS process. The family consists of the following chips: For brevity, the table above lists only the chip variants in a plastic DIP (prefix ''КР''). Not listed separately are variants in a ceramic DIP (prefix ''КМ'' for commercial version and prefix ''М'' for the military version). Additionally, many devices in the K580 series could be used for the K1810 series as well.

Applications

Unlike the earlier

KR580VM80A The KR580VM80A (russian: КР580ВМ80А) is a Soviet microprocessor, a clone of the Intel 8080 CPU. Different versions of this CPU were manufactured beginning in the late 1970s, the earliest known use being in the SM1800 computer in 1979. Initi ...

which was very popular in the Soviet Union but little used elsewhere, the K1810VM86 was widely used throughout the Eastern Bloc due to it being one of the first 16-bit microprocessors available there and among those the only one with an

x86 x86 (also known as 80x86 or the 8086 family) is a family of complex instruction set computer (CISC) instruction set architectures initially developed by Intel based on the Intel 8086 microprocessor and its 8088 variant. The 8086 was intr ...

instruction set, allowing it to run

MS-DOS MS-DOS ( ; acronym for Microsoft Disk Operating System, also known as Microsoft DOS) is an operating system for x86-based personal computers mostly developed by Microsoft. Collectively, MS-DOS, its rebranding as IBM PC DOS, and a few ope ...

. Examples for

personal computer A personal computer (PC) is a multi-purpose microcomputer whose size, capabilities, and price make it feasible for individual use. Personal computers are intended to be operated directly by an end user, rather than by a computer expert or tec ...

s built based on the K1810VM86 (or the 8-bit bus variant K1810VM88) are: * Iskra-502,

Iskra-1030 The Iskra 1030 (russian: Искра 1030) was an Intel 8086 compatible personal computer produced in the USSR. It was designed by Elektronmash (russian: ЛНПО «Электронмаш») in Leningrad. The main manufacturers were the Iskra fact ...

, Iskra-1130, Poisk in the

Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...

* Mazovia 1016 in

Poland Poland, officially the Republic of Poland, is a country in Central Europe. It is divided into 16 administrative provinces called voivodeships, covering an area of . Poland has a population of over 38 million and is the fifth-most populou ...

* PP 01.16 in

Czechoslovakia , rue, Чеськословеньско, , yi, טשעכאסלאוואקיי, , common_name = Czechoslovakia , life_span = 1918–19391945–1992 , p1 = Austria-Hungary , image_p1 ...

* A7100, A7150, EC1834 in

East Germany East Germany, officially the German Democratic Republic (GDR; german: Deutsche Demokratische Republik, , DDR, ), was a country that existed from its creation on 7 October 1949 until its dissolution on 3 October 1990. In these years the state ...

Further development

CMOS versions equivalent to the Intel 80C86 were named KR1834VM86 (''КР1834ВМ86''; developed in Kyiv in 1989 / 1990 and then manufactured in Minsk) and KR1835VM86 (''КР1835ВМ86''). The original KR1810VM86 is still shown on the price list of 15 August 2022 of the "Kvazar" plant in Kyiv together with various support chips of the K580 and K1810 series, while the newer CMOS versions appear to be no longer in production. A clone of the Intel 80C286 was manufactured under the name KR1847VM286 (''КР1847ВМ286'') but apparently did not see widespread use. No other processors with an

instruction set were designed in the Soviet Union until much later the 1875VD1T (''1875ВД1Т'', equivalent to the Intel 80C186) and 1875VD2T (''1875ВД2Т'', equivalent to the Intel 80386EXTB).

References

X86 microprocessors Computing in the Soviet Union 16-bit microprocessors {{List of Soviet microprocessors

Technology and support chips

Applications

Further development

See also

References