Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
4000-series integrated circuits
open-in-new
<p>The 4000 series is a <a href="/facts/CMOS/NJIWYgBl">CMOS</a> <a href="/facts/Logic_family/QlEgIecX">logic family</a> of <a href="/facts/Integrated_circuits/fjn6vg7C">integrated circuits</a> (ICs) first introduced in 1968 by <a href="/facts/RCA/NWyjNN6R">RCA</a>. It was slowly migrated into the 4000B buffered series after about 1975. It had a much wider supply voltage range than any contemporary logic family (3V to 18V 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. </p>