Maxim Integrated MAX810MEUR+T Microprocessor Reset Circuit

The MAX810MEUR+T is a highly efficient and reliable microprocessor (µP) supervisory circuit designed and manufactured by Maxim Integrated, a renowned leader in the development of innovative analog and mixed-signal products. This compact and robust component is specifically engineered to monitor power supplies in microprocessor and digital systems, providing a significant layer of protection by ensuring that the µP boots up in a known state every time.

This device is particularly well-suited for battery-powered equipment due to its low power consumption. The MAX810MEUR+T offers a precise monitoring capability for 3V, 3.3V, and 5V power supplies, making it versatile for a range of applications. It holds the µP in a reset state until the system voltage has stabilized within the acceptable range, thus safeguarding the system against unpredictable behavior due to power surges or dips.

One of the key features of the MAX810MEUR+T is its ability to assert a reset signal whenever the VCC supply voltage declines below the factory-set reset threshold. The reset output remains asserted for a minimum of 140ms after VCC has risen above the reset threshold, ensuring a proper reset of the µP during power-up, power-down, and brownout conditions. This timing is crucial for the stable operation of the system as it allows enough time for the power supply and the µP to stabilize.

The device is available in a compact SOT-23 package, which is ideal for space-constrained applications. The MAX810MEUR+T is also characterized for operation over a wide temperature range, making it suitable for use in various environmental conditions. Its push-pull active-low reset output provides a direct interface to the reset pin of the µP without requiring any external components, simplifying the design and reducing the overall bill of materials.

Overall, the Maxim Integrated MAX810MEUR+T is a high-quality, cost-effective solution for system reliability and stability. Its ease of integration, low power consumption, and precise voltage monitoring capabilities make it an excellent choice for designers looking to enhance the operational integrity of their digital systems.