CD74HC4520M

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CD74HC4520M is a dual 4-bit binary counter/divider/sequencer integrated circuit (IC), which is specially designed to be applied in a variety of applications such as rapidly counting, dividing and clocking. It has wide operating temperature range and a very high speed of operating frequency.

Application Field of CD74HC4520M:

CD74HC4520M has diverse application fields due to its wide operating temperature range, higher speed of operation, low power consumption and wide range of operating frequency. It can be used in the following applications:

• Robotics and industrial automation
• Telecommunication
• Data acquisition Card
• Power management and system control
• Computing and embedded systems
• Data acquisition systems

Working Principle of CD74HC4520M:

CD74HC4520M consists of two separate 4-bit binary counters, which are packed within a single package. Both the counters have parallel data outputs (Qi and Qn) which can be used to cascade subsequent stages, thereby forming longer counter divide ratios. The counters are reset together by the built-in reset terminal. The counters also have ripple clock (RCi) inputs and main counter inputs (Cn). The main counter inputs are used to limit the maximum count by disabling the clock input after a predefined cycle. The functions and operations of CD74HC4520M can be summarized as follows:

1. The counters will count up when a high to low transition is detected at their RCi input. This is known as one cycle.
2. Once the predefined count limit is reached, the main counter input disables the next clock cycle.
3. The counters can be reset anytime by giving a low to high transition to the reset input. This will reset the counters.
4. Once the count limit is reached, the outputs of the counters can be read from their data output terminals (Qn and Qi).

CD74HC4520M is suitable for applications which require rapid counting, dividing and clocking, as well as power management and system control. It has wide application fields due to its wide range of operating temperature, wider speed scope and less power consumption. Its built-in redundancy and parallelism make it suitable for various applications.

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