74HC4020D,653

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Logic counters, dividers, and related circuits are essential components of logic circuits. The 74HC4020D,653 is a programmable logic counter designed to meet that need. It contains two individual logic counters - the 74HC4020D and the 74HC653. Each one has its own set of features and capabilities.

The 74HC4020D is a 12-bit synchronous programmable binary counter with the ability to count up or down. It has an input clock frequency of 15 MHz, making it suitable for use in circuits with high speed requirements. The counting sequence can be programmed using set-up and enable switches. The counter can also be reset with a reset pin.

The 74HC653 is an 8-bit synchronous binary counter with built-in divider and delay circuits. It can be programmed for up/down counting, and has two independent delay circuits for timing operations. The counter can also detect frequency-doubling for improved resolution. The output will remain a constant level until the next frequency-doubled pulse is received.

The two counters can be combined to make a 20-bit counter. This combination allows for greater precision and extended range. The two counters can also be operated as a dual 8-bit counter. This makes the 74HC4020D,653 an ideal choice for applications requiring multiple counters with large counter ranges and improved precision.

The 74HC4020D,653 is typically used in applications such as frequency measurement, timer applications, pulse-counting and pulse-width measurement. It can also be used in data acquisition systems, numeric control systems and analog to digital converters. Its dual-counting capabilities make it ideal for counting 1 to n pulses or inverting the counting sequence.

The 74HC4020D,653 works by taking in a digital input signal at its input terminals and then outputting a binary count sequentially at its output terminals. Each counter takes in one input signal and passes it through its logic circuit to an output register. The output register is then loaded with the next binary number in the counting sequence. This process is repeated until the set-up number is reached, at which point the counter will continue to output the same binary number until reset.

The 74HC4020D,653 is a versatile and reliable logic counter capable of meeting many different applications. The two independent counters can be combined for larger count ranges; this allows for higher precision and greater range. Its ability to count up or down in a preset sequence makes it ideal for pulse-counting and measuring pulse widths. The built-in divider and delay circuits make it suitable for frequency measurement and timer applications. The counter can also be reset with a single pin, allowing for easy control.

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