The 74HCT4020D,652 is a high-speed 14-stage binary counter and oscillator integrated circuit (IC) component. It is part of the 74HCT series, which is a widely used family of high-speed CMOS logic ICs.
Some key features of the 74HCT4020D,652 are as follows:
1. 14-stage binary counter: The IC has 14 flip-flop stages that enable it to count in binary from 0 to 2^14 - 1 (0 to 16383). It provides a divide-by-2^14 frequency division.
2. Oscillator capability: The IC also functions as an oscillator. The oscillator is self-contained and requires only an external resistor (Rext) and capacitor (Cext) to control the oscillator frequency. By connecting Rext and Cext to appropriate terminals, a precise time interval is generated, which is then divided by the counter stages.
3. High-speed operation: The HCT in its name signifies that this IC is a high-speed CMOS technology variant. It is designed to operate at high speeds, with a typical propagation delay time of about 10 ns. This makes it suitable for use in applications that require fast counting or timing operations.
4. Schmitt-trigger inputs: The IC features Schmitt-trigger inputs, which allow for greater immunity to noise and more reliable operation in noisy environments
