HEF4520BT,653

The HEF4520BT, 653 is a form of logic device, specifically classified as a Counter, Divider, and Sequence Generator. A logic device is essentially an integrated circuit that can implement digital logic and perform switching operations. Counters and dividers are used to count and divide information, such as incoming signals, and sequence generators are used to create specific sequences of output signals.

The main application of the HEF4520BT, 653 is in digital counters and dividers, particularly for dividing input frequency numbers into even divisions and multiples. Coupled with a precise preset device, the divide ratio and division accuracy can be precisely set. Additionally, they can be used as sequence generators, providing precise timing of signals, which allows timing accuracy down to nanoseconds.

The HEF4520BT, 653 is built on the four-quadrant multiplier architecture and includes circuitry for fractional division, division chains, and multi-stage division. The multiplier architecture allows the device to function as a four-quadrant multiplier, meaning that it can output a four-fold division ratio. This four-fold division ratio can be used to divide frequency numbers into even divisions, multiples, and can also be used as a division chain, enabling more precise division ratios.

The working principle of the HEF4520BT, 653 is based on the use of a preset device, which is set to the desired divide ratio. The preset device then takes the input frequency and passes it to the multiplier circuitry. The multiplier circuitry then multiplies the input frequency by a selected multiple, resulting in an output frequency that is the multiple of the input frequency. This output frequency is then used in a division chain to get the desired division ratio.

The HEF4520BT, 653 is an advanced logic device with multiple applications, providing precise division ratios, timing accuracy down to nanoseconds, and multi-stage division. It can be used for digital counters and dividers, as well as for sequence generators, for timing signals and setting precise division ratios. When coupled with a precise preset device, the accuracy of the division ratios and timing can be precisely set, making the HEF4520BT, 653 a highly versatile logic device.