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STMicroelectronics M74HC4520RM13TR Environmental and export classification status description

The STMicroelectronicsM74HC4520RM13TR is a CMOS dual binary counter with asynchronous reset. It belongs to the 74HC family of high-speed Si-gate CMOS integrated circuits. This IC features two independent binary counters which can count up or down based on the applied control signals. The asynchronous reset functionality allows the counters to be reset independently of the clock input. Functions: 1. Dual Binary Counters: The IC contains two separate binary counters that can count up or down. 2. Asynchronous Reset: Allows resetting the counters independently of the clock input. 3. High-Speed CMOS: The 74HC technology offers high-speed operation and low power consumption. Applications: 1. Frequency Divider: Can be used to divide clock frequencies in digital circuits. 2. Event Counter: Counting or timekeeping applications where binary counting is required. 3. Sequence Generation: Generating specific binary sequences for control or signal processing. Alternative Components: 1. Mouser Electronics: Offers a wide range of alternatives from different manufacturers like Texas Instruments and NXP. 2. Digi-Key Electronics: Provides substitutes from various brands like ON Semiconductor and Maxim Integrated. 3. RS Components: Stocks equivalent components from companies such as TOSHIBA and Analog Devices. Embedded Modules: The STMicroelectronicsM74HC4520RM13TR can be integrated into various electronic modules like: 1. Digital Timers: Incorporating the binary counters for precise time measurements. 2. Frequency Synthesizers: Using the IC in frequency generation circuits for tuning or modulation. 3. Signal Processing Units: Utilizing the counters for sequential logic operations. --- Related Q&A: 1. What is the maximum clock frequency supported by the STMicroelectronicsM74HC4520RM13TR? Answer: The datasheet specifies a maximum clock frequency of 25 MHz. 2. Can the counters in this IC be cascaded to create larger counting sequences? Answer: Yes, multiple ICs can be cascaded to extend the counting range or create more complex sequences. 3. How does the asynchronous reset function work in the STMicroelectronicsM74HC4520RM13TR? Answer: The asynchronous reset pin allows you to reset the counters regardless of the clock signal, ensuring synchronous operation. 4. What is the typical power consumption of the STMicroelectronicsM74HC4520RM13TR in active mode? Answer: The datasheet indicates a typical power consumption of 10µA per counter at 4.5V supply voltage. 5. Are there any precautions to be taken while interfacing this IC with other components in a circuit? Answer: It is recommended to follow the operating voltage and current specifications provided in the datasheet and ensure proper decoupling capacitors are used for noise immunity.