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❪◑❫ 4000-Series Integrated Circuits ○｜Definition｜1st｜20260110205401-00-⌔

4000-series integrated circuits - Wikipedia

4000-series integrated circuits

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The 4000 series is a CMOS logic family of integrated circuits (ICs) first introduced in 1968 by RCA.¹ It was slowly migrated into the 4000B buffered series after about 1975.² It had a much wider supply voltage range than any contemporary logic family (3 V to 18 V recommended range for “B” series). Almost all IC manufacturers active during this initial era fabricated models for this series. Its naming convention is still in use today.

Printed 2026-06-28.

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Footnotes

1. “1963: Complementary MOS Circuit Configuration is Invented”. Computer History Museum. Archived from the original on July 23, 2019. ↩

2. Marston, Ray (October 2006). “Understanding Digital Logic ICs - Part 4”. Nuts and Volts. Archived from the original on November 1, 2016. ↩

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