Maxim Integrated's MAX6342RUT+T Microprocessor Reset Circuit

The MAX6342RUT+T is a highly compact, precision microprocessor (µP) supervisory circuit designed by Maxim Integrated to monitor power supplies in digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used with +3V-powered circuits.

This device is particularly useful in portable electronics due to its small size, with the component packaged in a space-saving 6-pin SOT-23. Despite its diminutive footprint, the MAX6342RUT+T is powerful enough to ensure that the µP and its peripherals are reset properly during a power failure or whenever the voltage supplied falls beneath a predetermined threshold, thus safeguarding data integrity and system stability.

Key Features:

• Precision Monitoring: The MAX6342RUT+T offers a precision factory-set V<sub>CC reset threshold, ensuring that the system is reset reliably whenever necessary.
• Low Power Consumption: With its low supply current of 1µA (typical), it's an ideal choice for battery-operated equipment.
• Manual Reset Input: An additional feature is the manual reset input, which allows for a system reset to be triggered with an external switch or logic signal.
• Reset Output Stage: The reset output stage is available in either push-pull or open-drain configurations, providing flexibility in interfacing with different types of microprocessors and other digital systems.
• Guaranteed Reset Valid to V<sub>CC = 1V: Even with very low supply voltages, the MAX6342RUT+T guarantees a valid reset signal, ensuring proper system behavior on power-up or during brown-out conditions.

Applications:

The MAX6342RUT+T is well-suited for a variety of applications, including:

• Portable/Battery-Powered Equipment
• Computers and Controllers
• Embedded Systems
• Data Storage Equipment
• Medical Devices
• Automotive Systems

In summary, Maxim Integrated's MAX6342RUT+T is an essential component for ensuring the stable operation of microprocessor-based systems, particularly where space is at a premium and energy efficiency is a concern. Its combination of features makes it a versatile choice for designers looking to maintain system integrity through precise voltage monitoring and reset capabilities.