Texas Instruments

CD4520BPW

CD4520BPW Description

The CD4520BPW from Texas Instruments is a dual 4-bit binary counter belonging to the 4000B series, designed for high-reliability digital counting applications. This synchronous counter operates within a wide voltage range (3V to 18V), making it suitable for both low-power and industrial-level designs. Housed in a 16-pin TSSOP package, it features two independent counters, each capable of up/down counting with positive or negative edge triggering. Its asynchronous reset allows immediate counter clearing, while the 8 MHz count rate ensures efficient performance in timing and frequency division circuits.

CD4520BPW Features

• Dual 4-bit counters: Two independent binary counters in a single IC, reducing board space.
• Wide voltage range (3V–18V): Compatible with TTL and CMOS logic levels, ideal for mixed-voltage systems.
• Synchronous operation: Ensures precise timing and reduces glitches in counting sequences.
• Edge-triggered (positive/negative): Flexible clock input options for diverse logic requirements.
• Asynchronous reset: Immediate counter clearing without clock dependency.
• High-speed (8 MHz count rate): Suitable for rapid pulse counting and clock division.
• RoHS3 & REACH compliant: Environmentally friendly and meets global regulatory standards.

CD4520BPW Applications

The CD4520BPW excels in applications requiring frequency division, event counting, and sequential timing, such as:

• Digital clocks and timers: Precision timekeeping with cascaded counters.
• Industrial control systems: Process sequencing and pulse counting.
• Frequency synthesizers: Clock division in PLL circuits.
• Embedded systems: Low-power counting in battery-operated devices.
• Test and measurement equipment: Accurate event logging and signal conditioning.

Conclusion of CD4520BPW

The CD4520BPW stands out for its versatility, robust performance, and wide operating range, making it a preferred choice for engineers designing high-reliability digital systems. Its dual-counter architecture, synchronous operation, and compliance with environmental standards provide a competitive edge over similar ICs. While classified as Last Time Buy, its enduring relevance in industrial, automotive, and consumer electronics ensures continued demand for legacy and new designs. For applications requiring precision counting with minimal power consumption, this IC remains a dependable solution.