The K1810VM86 () is a

Soviet The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...

16-bit

microprocessor A microprocessor is a computer processor (computing), processor for which the data processing logic and control is included on a single integrated circuit (IC), or a small number of ICs. The microprocessor contains the arithmetic, logic, a ...

, a clone of the

Intel Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California, and Delaware General Corporation Law, incorporated in Delaware. Intel designs, manufactures, and sells computer compo ...

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 (allo ...

CPU A central processing unit (CPU), also called a central processor, main processor, or just processor, is the primary processor in a given computer. Its electronic circuitry executes instructions of a computer program, such as arithmetic, log ...

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 In microelectronics, a dual in-line package (DIP or DIL) is an Semiconductor package, electronic component package with a rectangular housing and two parallel rows of electrical connecting pins. The package may be through-hole technology, throu ...

(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 ...

with its 8-bit bus was manufactured as the K1810VM88 (), also in plastic and ceramic packages.

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 () is a Soviet microprocessor, a clone (computer science), clone of the Intel Intel 8080, 8080 CPU. Different versions of this CPU were manufactured beginning in the late 1970s, the earliest known use being in the SM EVM, SM1800 co ...

which was very popular in the Soviet Union but little used elsewhere, the K1810VM86 was widely used throughout the

Eastern Bloc The Eastern Bloc, also known as the Communist Bloc (Combloc), the Socialist Bloc, the Workers Bloc, and the Soviet Bloc, was an unofficial coalition of communist states of Central and Eastern Europe, Asia, Africa, and Latin America that were a ...

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 8086 microprocessor and its 8-bit-external-bus variant, the 8088. Th ...

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 op ...

. Examples for

personal computer A personal computer, commonly referred to as PC or computer, is a computer designed for individual use. It is typically used for tasks such as Word processor, word processing, web browser, internet browsing, email, multimedia playback, and PC ...

s built based on the K1810VM86 (or the 8-bit bus variant K1810VM88) are: * Iskra-502, Iskra-1030, Iskra-1130, Poisk in the

Soviet Union The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...

* Mazovia 1016 in

Poland Poland, officially the Republic of Poland, is a country in Central Europe. It extends from the Baltic Sea in the north to the Sudetes and Carpathian Mountains in the south, bordered by Lithuania and Russia to the northeast, Belarus and Ukrai ...

* PP 01.16 in

Czechoslovakia Czechoslovakia ( ; Czech language, Czech and , ''Česko-Slovensko'') was a landlocked country in Central Europe, created in 1918, when it declared its independence from Austria-Hungary. In 1938, after the Munich Agreement, the Sudetenland beca ...

* A7100, A7150, EC1834 in

East Germany East Germany, officially known as the German Democratic Republic (GDR), was a country in Central Europe from Foundation of East Germany, its formation on 7 October 1949 until German reunification, its reunification with West Germany (FRG) on ...

Further development

CMOS Complementary metal–oxide–semiconductor (CMOS, pronounced "sea-moss ", , ) is a type of MOSFET, metal–oxide–semiconductor field-effect transistor (MOSFET) semiconductor device fabrication, fabrication process that uses complementary an ...

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 1 October 2024 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

External links

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

Technology and support chips

Applications

Further development

See also

References

External links