This document describes the features and characteristics of products such as IDT54/74FCT821A/B/C, IDT54/74FCT823A/B/C, IDT54/74FCT824A/B/C, and IDT54/74FCT825A/B/C from IDT, including the pinout/function, speed, and output drive capabilities equivalent to AMD's Am29821-25 bipolar registers over the full temperature and voltage supply extremes. Additionally, this series of products features buffered common clock enable (EN) and asynchronous clear input (CLR), among others.
