Maxim Integrated MAX6354RVUK Microprocessor Supervisory Circuit

The Maxim Integrated MAX6354RVUK is a high-precision microprocessor (µP) supervisory circuit designed 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 with a 3.3V power supply.

This supervisory circuit ensures that the µP is reset to a known state during power-up, power-down, or brown-out conditions. The MAX6354RVUK features a reset output that remains asserted for a minimum of 140ms after VCC has risen above the reset threshold. This guarantees that the system has sufficient time to stabilize before the processor starts executing code.

Key features of the MAX6354RVUK include:

• Factory-Trimmed Reset Threshold: The device comes with a preset reset threshold suitable for operation with a 3.3V power supply, ensuring compatibility with a wide range of microprocessors and digital systems.
• Low Supply Current: With its low supply current of only 1.2µA (typical), this supervisory circuit is an excellent choice for power-sensitive applications.
• Manual Reset Input: A manual reset input is provided, allowing for a system reset to be initiated by an external signal, thereby offering additional system control.
• Reset Output: The reset output is available in both push-pull and open-drain configurations, providing flexibility in interfacing with different types of microprocessors and other digital logic.
• Compact SOT23 Packaging: The device is available in a small SOT23-3 package, making it ideal for space-constrained applications.

The MAX6354RVUK is designed for use in a variety of applications, including portable/battery-powered equipment, computers, controllers, intelligent instruments, and critical µP power monitoring. With its precision voltage monitoring and robust reset features, this supervisory circuit is an essential component for ensuring system reliability and performance.

Overall, the Maxim Integrated MAX6354RVUK offers a practical and cost-effective solution for system designers looking to enhance the stability and robustness of their power supply monitoring systems.