General description
The 74HC4040; 74HCT4040 are high-speed Si-gate CMOS devices and are pin compatible with the HEF4040B series. They are specified in compliance with JEDEC standard no. 7A.
The 74HC4040; 74HCT4040 are 12-stage binary ripple counters with a clock input (CP), an overriding asynchronous master reset input (MR) and twelve parallel outputs (Q0 to Q11). The counter advances on the HIGH-to-LOW transition of CP.
A HIGH on MR clears all counter stages and forces all outputs LOW, independent of the state of CP.
Each counter stage is a static toggle flip-flop.

Features
■ Multiple package options
■ Complies with JEDEC standard no. 7A
■ ESD protection:
   ◆ HBM JESD22-A114-C exceeds 2000 V
   ◆ MM JESD22-A115-A exceeds 200 V
■ Specified from −40 °C to +85 °C and from −40 °C to +125 °C

Applications
■ Frequency dividing circuits
■ Time delay circuits
■ Control counters