CD74HC4020MG4 [Texas Instruments]

The 'HC4020 and 'HCT4020 are 14-stage ripple-carry binary counters with master-slave flip-flop stages. They advance on negative clock transitions and feature a master reset (MR) to clear all outputs. All inputs and outputs are buffered. HC types operate from 2V to 6V with high noise immunity, while HCT types operate from 4.5V to 5.5V with direct LSTTL input compatibility. These devices offer balanced propagation delays, reduced power consumption versus LSTTL, and operate over a wide temperature range.