74HC4020D - 14-stage binary ripple counter
The 74HC4020D is a high-speed Si-gate CMOS device and is pin compatible with low-power Schottky TTL (LSTTL). Manufactured by NXP Semiconductors, it is part of the 74HC series, known for its robustness and versatility in various electronic applications.
This integrated circuit is a 14-stage binary ripple counter with a counter advancement on the negative-going transition of the input clock signal. The device features an asynchronous master reset input (MR) that, when taken high, resets the counter to zero (all outputs low). The 74HC4020D is designed for use in applications requiring a stable and reliable counting sequence, making it a perfect choice for timing circuits, counters, and frequency dividers.
The counter advances on the falling edge of the clock pulse, ensuring accurate and reliable counting for high-speed operations. The 74HC4020D's outputs are fully buffered for the highest noise immunity and pattern insensitivity to output impedance variations. This feature makes the device particularly suitable for implementing buffer registers, oscillators, and control counters.
Key features of the 74HC4020D include:
- 14-stage ripple carry binary counter
- Asynchronous master reset
- Wide operating voltage range from 2.0V to 6.0V
- Low input current of 1µA max
- High noise immunity
- Output capability: standard
- ICC category: MSI
The device is provided in a small and energy-efficient SOIC-16 package, which is suitable for surface-mounted design, saving valuable board space in compact system designs. The 74HC4020D is ideal for long-term use in industrial, commercial, and consumer applications where reliability and low power consumption are critical.
With its extensive operating temperature range, the 74HC4020D can perform reliably in environments ranging from -40°C to +125°C, ensuring functionality in a wide array of operating conditions. Whether you're designing simple timing solutions or complex digital systems, the 74HC4020D from NXP is a reliable and cost-effective choice that offers excellent performance and durability.
