HEF4521BT,652

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction

The HEF4521BT,652 is a member in the family of Logic - Counters, Dividers. It is an eight-bit programmable binary divider that divides any binary number by 2, 4, 8, 16, or 32. It is designed to be used in applications where precise control of frequencies is required.

Application Field

The HEF4521BT,652 is a programmable frequency and time divider designed specifically for high performance applications such as communications, video and audio, computers and other digital circuits. It can be used in frequency synthesizers, frequency modulators, local oscillators of TV or radio equipment and CRTs, sample-and-hold circuits and a variety of other applications.

Working Principle

The HEF4521BT,652 works by utilizing two clock inputs. A master clock input referred to as f_IN and a divided clock output referred to as f_OUT. The master clock is fed into the counter where it is divided down, in size, according to the value that is programmed into the dividers register. The divide value is determined by a binary number of up to 8 bits. For example, if a divide value of 8 is programmed, the clock is divided by 8 from the master clock frequency, and the result is the divided clock frequency.

Once the desired output frequency is reached, the registers can be updated and changed in ON THE FLY to change the output frequency. This also eliminates the need for additional external logic to reset the divider, as the output can be conditioned directly to the master clock frequency. This eliminates much of the required circuitry in a complex application.

Conclusion

The HEF4521BT,652 is a powerful device for frequency and time divisions in high-performance applications. Its ability to preset values using a 4-bit binary number and then change them ON THE FLY makes it a flexible and robust device for a variety of applications. This wide range of applications, combined with its low power consumption, makes the HEF4521BT,652 a suitable part for a variety of tasks.

The specific data is subject to PDF, and the above content is for reference