Maxim Integrated MAX6354TYUK+T Microprocessor Supervisory Circuit

The MAX6354TYUK+T is a robust microprocessor (µP) supervisory circuit designed by Maxim Integrated to monitor power supplies in µP and digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in systems that require voltage monitoring. This device is particularly suitable for portable and space-constrained applications due to its tiny SOT23 package.

At the heart of the MAX6354TYUK+T's functionality is its ability to assert a reset signal whenever the V<sub>CC supply voltage falls below its preset threshold, ensuring that the µP resets cleanly during power-up, power-down, and brownout conditions. The reset output remains asserted for a minimum timeout period after V<sub>CC rises above the reset threshold, providing the system with adequate time to stabilize.

Key features of this supervisory circuit include:

• A precise factory-set V<sub>CC reset threshold voltage with multiple options to accommodate different system requirements.
• A significant minimum power-on reset timeout of 140ms, which guarantees a reliable system reset.
• A low supply current of 1.6µA, making it an energy-efficient choice for battery-operated applications.
• Immunity to short V<sub>CC transient glitches, which enhances system robustness.

The MAX6354TYUK+T also features a debounced manual reset input that can be activated with a pushbutton to generate a reset signal, allowing for easy and convenient system resets by a user. This manual reset capability is especially useful during system development and debugging.

This supervisory circuit operates over a wide temperature range of -40°C to +125°C, making it suitable for industrial applications where extreme temperatures are common. With its compact form factor and high level of integration, the MAX6354TYUK+T from Maxim Integrated is an ideal choice for designers looking to enhance system reliability and performance without incurring significant space or power penalties.

Whether it's for managing power supplies in computers, controllers, intelligent instruments, or portable electronics, the MAX6354TYUK+T delivers the protection and stability needed for your critical applications.