Maxim Integrated MAX6820EUT Microprocessor Reset Circuit

The Maxim Integrated MAX6820EUT is a compact, high-precision microprocessor (µP) supervisory circuit designed to monitor power supplies in digital systems. It provides a robust solution to ensure that microprocessors and other sensitive digital systems operate reliably by resetting these systems during power-up, power-down, and brownout conditions. The MAX6820EUT is specifically crafted to maintain system integrity and prevent code execution errors in the event of unstable voltage levels.

This supervisory circuit comes in a tiny 6-pin SOT23 package, which makes it an ideal choice for space-constrained applications where board real estate is at a premium. Despite its small size, the MAX6820EUT is packed with features that make it an essential component for any system requiring a reliable reset function.

Key features of the MAX6820EUT include:

• Precision Voltage Monitoring: It has a factory-trimmed reset threshold voltage, ensuring accurate monitoring of the VCC supply voltage.
• Low Power Consumption: The device is designed for low-power operation, which is critical for battery-operated and portable devices, helping to extend battery life.
• Manual Reset Input: An external manual reset input is provided, allowing for a system reset to be triggered on demand by a user or external signal.
• Reset Output: The open-drain reset output ensures compatibility with a variety of microprocessors and digital logic levels, providing a versatile solution for system design.
• Immunity to Short VCC Transients: The MAX6820EUT features a built-in debounce timer that filters out short-duration voltage transients on the VCC line, preventing false triggering of the reset signal.

The MAX6820EUT operates over a wide voltage range and temperature range, making it suitable for use in diverse environments and applications, including embedded systems, computers, controllers, and intelligent instruments. Its robust design and reliable performance make it an essential component for safeguarding the integrity of digital systems.

With its combination of precision, low power, and small footprint, the Maxim Integrated MAX6820EUT is a smart choice for designers looking to incorporate a reliable reset mechanism into their digital systems.