Maxim Integrated MAX812REUS Microprocessor Reset Circuit

The Maxim Integrated MAX812REUS is a compact, highly reliable microprocessor (µP) supervisory circuit designed to monitor power supplies in digital systems. It provides a crucial function in ensuring system stability by resetting the microprocessor during power-up, power-down, and brown-out conditions. This component is essential for maintaining the integrity of the system's operation, preventing improper operation when the supply voltage falls out of the acceptable range.

Encased in a small 4-pin SOT-143 package, the MAX812REUS is optimized for space-constrained applications. It is particularly well-suited for use in portable devices, such as laptops and mobile phones, where size and power efficiency are of utmost importance. Its low power consumption and wide operating voltage range from 1.2V to 5.5V make it versatile for various digital systems.

One of the key features of the MAX812REUS is its precision factory-trimmed reset threshold voltage. This ensures that the µP reset signal is generated accurately at the correct voltage level, providing a reliable reset output without external components. Additionally, the device has a 140 ms minimum power-on reset delay, which allows the power supply and µP to stabilize before the system starts, thus preventing system errors during power-up sequences.

The MAX812REUS also includes a debounced manual reset input. This feature allows for a manual reset, which can be vital for system maintenance or in situations where a software-controlled reset is required. The manual reset function is a valuable tool for developers and technicians to have direct control over the reset sequence.

Overall, the Maxim Integrated MAX812REUS is a robust microprocessor supervisory circuit that offers reliable performance in a wide range of applications. Its small footprint, low power consumption, and precision voltage monitoring capabilities make it an ideal choice for designers looking to enhance the stability and robustness of their digital systems.

For further technical specifications, application notes, and support documentation, users can refer to the Maxim Integrated website or contact their technical support team.