1УО709С, look confusingly similar to the 1968 Soviet designations but the standards differ. Bulgarian designations for bipolar integrated circuits, e.g. The 1980 standard was published in Ukraine as DSTU 3212-95 ( Ukrainian: ДСТУ 3212-95). Companies in Ukraine mostly stayed with the 1980 standard and prefixed the designation with the letter У (U), e.g. Beside Russia the 2010 standard is applied in Belarus as well. Underlining this, the 2010 standard is explicitly labelled a Russian military standard. However, integrated circuits for military, aerospace, and nuclear applications in Russia still have to follow the standard designation. These were typically used in parallel with the standards. Following the dissolution of the Soviet Union in 1991, the standards were not as strictly enforced, and a number of manufacturers introduced manufacturer-specific designations again. Before 1968 each manufacturer used its own integrated circuit designation. Throughout this article the standards are referred to by the year they came into force. The nomenclature for integrated circuits has changed somewhat over the years as new standards were published:
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