GB/T 17023-1997
ActiveSemiconductor devices--Integrated circuits--Part 2:Digital integrated circuits--Section two--Family specification for HCMOS digital integrated circuits series 54/74HC,54/74HCT,54/74HCU
半导体器件 集成电路 第2部分:数字集成电路 第二篇 HCMOS数字集成电路54/74HC、54/74HCT、54/74HCU系列族规范