The 74HC/HCT4024 are high-speed Si-gate CMOS devices and are pin compatible with the “4024” of the “4000B” series. They are specified in compliance with JEDEC standard no. 7A. The 74HC/HCT4024 are 7-stage binary ripple counters with a clock input (CP), an overriding asynchronous master reset input (MR) and seven fully buffered parallel outputs (Q0 to Q6). 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. Schmitt-trigger action in the clock input makes the circuit highly tolerant to slower clock rise and fall times.
The Philips 74HC/HCT4024 is a high-speed Si-gate CMOS device designed as a 7-stage binary ripple counter. It features a clock input, an overriding asynchronous master reset input, and seven fully buffered parallel outputs. The device is pin compatible with the 4000B series and complies with JEDEC standard no. 7A.
| Output capability | standard |
|---|---|
| Logic category | MSI |
| Maximum clock frequency (74HC) | 90 MHz |
| Input capacitance | 3.5 pF |
The counter advances on the HIGH-to-LOW transition of the CP input.
A HIGH signal on MR clears all counter stages and forces all outputs LOW, independent of the state of CP.
It is used in frequency dividing circuits and time delay circuits.