Maxim Integrated's MAX6343LUT+T Microprocessor (µP) Supervisory Circuit

The MAX6343LUT+T from Maxim Integrated is a highly reliable microprocessor (µP) supervisory circuit designed to monitor power supplies in µP and digital systems. It provides a significant increase in system reliability and accuracy compared to separate ICs or discrete components. This supervisory circuit is ideal for portable and battery-powered equipment due to its low power consumption and small footprint.

With its precision factory-set V<sub>CC reset threshold and built-in watchdog timer, the MAX6343LUT+T ensures that your microprocessor system will reset to a known state during power-up, power-down, or if a system fault occurs. The reset output is guaranteed to be in the correct state for V<sub>CC down to 1.0V, making it suitable for low voltage applications.

This supervisory circuit comes in a tiny 6-pin SOT23 package, perfect for use in space-constrained applications. The MAX6343LUT+T operates over a wide temperature range, from -40°C to +85°C, offering reliable performance across various environmental conditions.

Key features of the MAX6343LUT+T include:

• Factory-set reset threshold voltages to accommodate different system requirements.
• Low supply current of 1.2µA (typical) ideal for battery-operated devices.
• Watchdog timer with 1.6s (typical) timeout to keep systems running smoothly.
• Manual reset input for additional system control.
• Immune to short V<sub>CC transients, enhancing system stability.
• Active-low RESET output with 100ms (min) reset timeout period.

The MAX6343LUT+T is designed to be a versatile component in a variety of applications, including portable/battery-powered equipment, computers, controllers, intelligent instruments, and critical µP power monitoring. Its robust feature set ensures that your system maintains integrity and provides a dependable safeguard against power-related anomalies.

Maxim Integrated's commitment to quality means that the MAX6343LUT+T is a trustworthy and efficient solution for your system's supervisory needs, ensuring that your products operate reliably and with the necessary protection mechanisms in place.