Maxim Integrated MAX6326XR26 Microprocessor Reset Circuit

The MAX6326XR26 is a highly reliable microprocessor (µP) supervisory circuit designed to maintain system integrity during power failures or unexpected behavior in digital systems. Manufactured by Maxim Integrated, this precise voltage-monitoring device is crucial for applications that require consistent and dependable operation.

With its compact design, the MAX6326XR26 comes in a small, 3-pin SC70 package, making it ideal for space-constrained applications. It is engineered to monitor the power supply voltage of µP and digital systems, providing a quick and robust response when the monitored voltage falls below its preset threshold of 2.63V. This feature ensures that the system can reset to a known state during power-up, power-down, or brown-out conditions.

The device offers a factory-trimmed reset threshold voltage, providing high accuracy without the need for external components. It boasts a low supply current of only 5µA (typical), making it suitable for portable and battery-powered equipment where power efficiency is paramount.

One of the standout features of the MAX6326XR26 is its ability to assert a reset signal for a minimum of 140ms (typical) after VCC has risen above the reset threshold. This reset delay ensures that the µP has adequate time to stabilize before resuming operation, thereby preventing system errors and improving reliability.

The device is also designed with an active-low RESET output, which remains asserted for as long as the monitored voltage is below the threshold, providing a clear and consistent signal to the µP during fault conditions.

The MAX6326XR26 is versatile and can be used in a wide range of applications, including computers, controllers, intelligent instruments, and critical µP and µC power monitoring. Its robust design ensures that it can meet the stringent requirements of industrial and automotive environments, providing a trusted solution for system designers looking to enhance the reliability and stability of their products.

Overall, the Maxim Integrated MAX6326XR26 is a key component for any system that demands precise voltage monitoring and reliable reset capabilities, ensuring that digital systems operate smoothly and without interruption.