Maxim Integrated MAX812SEUS Microprocessor Reset Circuit

The MAX812SEUS from Maxim Integrated is a compact and highly efficient microprocessor (µP) supervisory circuit designed to monitor power supplies in digital systems. It provides a significant level of protection to your digital devices by ensuring that the microprocessor is reset to a known state during power-up, power-down, or brown-out conditions. This tiny component is essential for any system where reliable operation is critical.

Encased in a space-saving SOT-143 package, the MAX812SEUS is perfect for portable and space-constrained applications. It is specifically engineered to maintain system integrity by monitoring the power supply voltage levels and asserting a reset signal whenever necessary. This reset signal ensures that the µP and other critical system components start in a clean, known state every time the system powers up or if there is any interruption in the power supply.

One of the key features of the MAX812SEUS is its ability to provide a precise monitoring for 3.3V, 3V, and other voltage systems. With its factory-trimmed reset threshold voltages, the device can cater to a wide range of applications and is versatile enough to be used in various digital systems. The reset output remains asserted for a minimum of 140ms after the supply voltage has risen above the reset threshold level, ensuring ample time for the system to stabilize.

The device offers additional functionality with its manual reset input. This allows for a manual assertion of the reset signal, providing an extra level of control to the user. This feature is particularly useful during system maintenance or troubleshooting, allowing for a system reset without the need to cycle the power.

In summary, the Maxim Integrated MAX812SEUS is an essential component for any microprocessor-based system. It ensures reliable operation by providing a robust power-on reset control, brown-out protection, and manual reset capability. Its small form factor and precision voltage monitoring make it an ideal choice for a wide range of applications including portable devices, computers, controllers, and intelligent instruments.

With its combination of features, the MAX812SEUS enhances system reliability and provides peace of mind for designers and engineers looking for a simple, yet effective way to safeguard their digital systems.