Maxim Integrated MAX6314US42D2 Microprocessor Reset Circuit

The Maxim Integrated MAX6314US42D2 is a highly reliable, low-power microprocessor (µP) supervisory circuit designed to monitor power supplies in digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in conjunction with +5V-powered circuits.

This compact device is specifically engineered to keep a system's microprocessor within a safe operating range by monitoring the power supply voltage. It ensures that the microprocessor and its associated circuitry reset cleanly during power-up, power-down, and brown-out conditions. The MAX6314US42D2 is ideal for portable, battery-operated applications due to its low power consumption and small footprint.

Key features of the MAX6314US42D2 include:

• A preset reset threshold voltage of 4.2V, tailored for use with 5V power supplies.
• An active-low RESET output, which remains asserted for a minimum of 140ms after VCC has risen above the reset threshold level, ensuring a proper system reset.
• Immunity to short VCC transients, making the system more robust against glitches that could cause inadvertent resets.
• Low supply current of 1µA (typical), which is highly beneficial for power-sensitive designs.
• Guaranteed RESET valid to VCC = 1V, which ensures predictable behavior at low voltages.
• Compact SOT-143 packaging, which is space-efficient for high-density board designs.

The MAX6314US42D2 is an ideal choice for managing system integrity across various applications, including computers, controllers, intelligent instruments, critical µP and µC power monitoring. Its highly integrated design and factory-set reset thresholds save time and increase reliability in product development by reducing the number of external components required.

Whether you are designing a new system or upgrading an existing platform, the Maxim Integrated MAX6314US42D2 provides a simple and effective solution for enhancing system stability and reducing the risk of data corruption due to power irregularities.