Soviet integrated circuit designation

This article describes the nomenclature for integrated circuits manufactured in the Soviet Union. 25 years after the dissolution of the Soviet Union this designation is still used by a number of manufacturers in Russia, Belarus, Ukraine, Latvia, and Uzbekistan. The designation uses the Cyrillic alphabet which sometimes leads to confusion where a Cyrillic letter has the same appearance as a Latin letter but is romanized as a different letter. Furthermore, for some Cyrillic letters the Romanization is ambiguous.

The nomenclature for integrated circuits has changed somewhat over the years as new standards were published:

Throughout this article the standards are referred to by the year they came into force. Before 1968 each manufacturer used its own integrated circuit designation. Following the dissolution of the Soviet Union in 1991, the standards were not as strictly enforced anymore and a number of manufacturers introduced manufacturer-specific designations again. These were typically used in parallel with the standards. However, integrated circuits for military, aerospace, and nuclear applications in Russia still have to follow the standard designation. Underlining this, the 2010 standard is explicitly labelled a Russian military standard. Beside Russia the 2010 standard is applied in Belarus as well. Companies in Ukraine mostly stayed with the 1980 standard and prefixed the designation with the letter У (U), e.g. УМ5701ВЕ51.

In general, devices already in production when a new standard came out kept their old designation. However, in some case devices were renamed:

Elements:

The package of an integrated circuit was generally not indicated in the 1973 designation, with two exceptions:

A manufacturer designation was introduced only with the 2000 standard. The table below is incomplete, many manufacturers still do not use their assigned designation. Manufacturer logos are more common.

Other manufacturers which as of 2016 used a version of the Soviet integrated circuit designation include NTC Module,MCST,ELVEES Multicore, Fizika, Optron, Sapfir, NPK TTs, and Progress, all of them in Moscow, as well as PKK Milandr and Soyuz in Zelenograd, NIITAP Zelenograd, NIIET Voronesh, SKTB ES Voronesh, Proton Oryol, Vostok Novosibirsk, Orbita Saransk, SIT Bryansk, NZPP-KBR Nalchik, Planeta Novgorod, Iskra Ulyanovsk, NIIEMP Penza, Almaz Kotovsk, Eltom Tomilino, DELS Minsk, Kvazar Kiev, Kristall Kiev, Elektronni Komponenti Ivano-Frankivsk, Dnepr Kherson, and Foton Tashkent.

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