MC74HC4020ADTR2

The MC74HC4020ADTR2 is a high speed CMOS Dual 14-bit Binary Ripple Counter/Divider with 3-State Outputs, which belongs to the 4000B series. This series, which also includes a variety of different combinations of logic gates, can operate from –55°C to 125°C and is able to withstand 1KV (100 x 16µs) of ESD protection (Human Body Model). This ensures that it is reliable even in tough operating situations, and an ideal application is any consumer electronic device.

Application Field

The application field of the MC74HC4020ADTR2 is quite wide, since it is a counter/divider that can be used for a variety of purposes, ranging from frequency measurement to motor speed control, frequency division, and even micropulse technology. This counter/divider is available in a variety of types, making it suitable for anything from low speed to high speed operations. For instance, it has both single phase and dual phase operating modes.

Furthermore, it is able to support various applications requiring multiplexing, data acquisition, and analog-to-digital conversion. In addition, the fact that it is a CMOS integrated circuit ensures that it only requires a small amount of power. This makes it ideal for devices like telecommunication systems and portable hand-held equipment, where power efficiency is essential.

Working Principle

The MC74HC4020ADTR2 works by using two 14-bit binary ripple counters that are clocked by a single external clock signal. Each counter has a four (4) bit output, so the first counter has 4x4=16 outputs, while the second has 2x4=8 outputs. Each of the counters has its own set of synchronous reset inputs, allowing it to be reset to a particular value once an external signal is received. As such, when used as a frequency divider, the reset signals can be used to reset the counter in order to divide the frequency of the signal by a particular number.

In terms of its power consumption, the MC74HC4020ADTR2 has two supply pins that are driven by a single voltage. This makes it more power efficient when compared to its other counterparts since the single supply voltage allows it to draw less power. As such, its low power consumption makes it ideal for devices operating on batteries, or even those operating in other low power environments.

The MC74HC4020ADTR2 also offers a number of other features, such as output inhibit, ripple carry carry output, and three-state outputs. The output inhibit feature allows the output of a logic function to be disabled by a single control signal, which can increase the accuracy of the signal. The ripple carry output allows the output of an individual counter stage to be passed to the next stage, allowing for fast and accurate counting. Finally, the three-state output allows the output to be set to a high impedance, thus allowing for high speed communication between multiple logic functions.

Conclusion

All in all, the MC74HC4020ADTR2 is one of the most reliable, efficient, and versatile logic elements available. With its wide application fields, which range from frequency measurement to motor speed control and frequency division, it can be used in a variety of devices. Furthermore, its ability to work with both single and dual phase operating modes, as well as its low power consumption, make it ideal for portable and low power environments. Finally, it also offers a number of other features, such as output inhibit, ripple carry carry output, and three-state outputs, which further increases its reliability and versatility.