M74HC4020 Overview
INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN (HC4020) HC4020 HC4040 TRUTH TABLE CLOCK X CLEAR H L L OUTPUT STATE ALL OUTPUTS = āLā NO CHANGE ADVANCE TO NEXT STATE 2/13 M54/M74HC4020/4040 LOGIC DIAGRAM (HC4020) 3/13 M54/M74HC4020/4040 LOGIC DIAGRAM (HC4040) 4/13 M54/M74HC4020/4040