HEF4521BT,653

The HEF4521BT,653 is a dual 4-bit binary counter integrated circuit (IC) manufactured by Nexperia, a well-known semiconductor company. This device is part of the HEF4000 series of CMOS logic ICs, which are characterized by their low power consumption and high noise immunity.

Key Features:

1. Dual 4-Bit Counter: The HEF4521BT,653 contains two independent 4-bit binary counters, allowing it to count from 0 to 15 (in binary) for each counter. This makes it suitable for applications requiring counting operations, such as frequency division and event counting.

2. Asynchronous Reset: The counters can be reset asynchronously, meaning that they can be set back to zero regardless of the clock signal. This feature is useful for initializing the counters in various applications.

3. Clock Input: The device has a clock input that triggers the counting operation. The counters increment their value on the rising edge of the clock signal, making it compatible with various timing applications.

4. Output Configuration: Each counter has four output pins (Q0 to Q3) that represent the current count in binary form. These outputs can be connected to other digital circuits for further processing or display.

5. Low Power Consumption: Being a CMOS device, the HEF4521BT,653 operates with low power, making it suitable for battery-powered applications and reducing heat generation.

6. Wide Operating Voltage Range: The IC can operate over a wide voltage range, typically from 3V to 15V, providing flexibility in various electronic designs.

7. Temperature Range: The device is designed to function reliably over a standard temperature range, making it suitable for both consumer and industrial applications.

8. Package Type: The HEF4521BT,653 is available in a DIP (Dual In-line Package) format, which is easy to handle and solder onto PCBs. The package typically has 16 pins, accommodating the necessary connections for power, ground, clock, reset, and output.

Applications:

• Digital Counters: Used in digital clocks, event counters, and frequency counters.
• Frequency Division: Can be used in frequency division circuits for signal processing.
• Data Acquisition Systems: Useful in systems that require counting events or pulses.
• Industrial Automation: Employed in various automation systems for counting and control purposes.

Conclusion:

The HEF4521BT,653 from Nexperia is a versatile and efficient dual 4-bit binary counter that is ideal for a wide range of counting applications in digital electronics. Its low power consumption, asynchronous reset capability, and compatibility with various voltage levels make it a valuable component in both consumer and industrial electronic designs.