IEC 60748-2-4 Ed. 1.0 b:1992

IEC 60748-2-4 Ed. 1.0 b:1992 Semiconductor devices - Integrated circuits - Part 2: Digital integrated circuits - Section four: Family specification for complementary MOS digital integrated circuits, series 4000 B and 4000 UB

standard by International Electrotechnical Commission, 01/30/1992