Maxim Integrated's MAX6336US22D2+T: Precision Microprocessor Reset Circuit

The MAX6336US22D2+T is a highly reliable and precise microprocessor (μP) supervisory circuit designed to monitor power supplies in digital systems. Manufactured by Maxim Integrated, this component ensures that systems operate correctly by providing a reset signal to the connected μP during power-up, power-down, and brown-out conditions. Its main purpose is to maintain the integrity of the system by resetting the processor when the supply voltage drops below a predetermined threshold, allowing for a safe reboot once normal levels are restored.

This device features a factory-trimmed reset threshold voltage of 2.20V, tailored for 2.5V-powered circuits. The reset output remains asserted for a minimum reset timeout period of 140ms after V_CC has risen above the reset threshold, ensuring the μP has ample time to initialize properly. The MAX6336US22D2+T comes in a compact, space-saving SOT-143 package, making it ideal for portable and space-constrained applications.

The MAX6336US22D2+T offers an active-low, push-pull reset output. This configuration eliminates the need for an external pull-up resistor and allows for a direct connection to the reset input of the μP. The device is also designed to ignore fast transients on the V_CC line, enhancing system reliability by preventing false resets.

With its wide operating temperature range of -40°C to +85°C, the MAX6336US22D2+T is suitable for use in a variety of environments, from industrial to commercial applications. Its low supply current of 5μA (typical) makes it an energy-efficient choice for battery-operated devices.

The MAX6336US22D2+T is part of Maxim Integrated's series of μP supervisory circuits, which are known for their precision and robustness. Whether used in computers, controllers, intelligent instruments, or portable electronics, this component is a reliable solution for system monitoring and protection.

Overall, Maxim Integrated's MAX6336US22D2+T provides a simple and cost-effective way to enhance system stability and prevent data corruption due to power supply irregularities. Its precision, low power consumption, and small footprint make it an excellent choice for designers looking to safeguard their digital systems.