Maxim Integrated MAX696CWE+T Microprocessor Supervisory Circuit

The MAX696CWE+T from Maxim Integrated is a highly reliable microprocessor (µP) supervisory circuit designed to monitor power supplies and microprocessor activity 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 supervisory circuit features a combination of functions that make it ideal for microprocessor systems. It includes a precision voltage monitor with a 4.65V threshold, a watchdog timer, a manual reset feature, and a debounced pushbutton reset input. These features ensure that your microprocessor system remains operational even under adverse conditions.

The MAX696CWE+T's watchdog timer improves system reliability by initiating a system reset if the microprocessor becomes unresponsive due to software lock-up, ensuring that the system can recover from such faults. The manual reset function allows for a system reset to be triggered manually, providing an additional layer of control for service personnel or system users. The debounced pushbutton input allows for a clean reset signal, free from the noise typically associated with mechanical switch operations.

With its wide supply voltage range of 4.5V to 5.5V and low supply current of 40µA, the MAX696CWE+T is suitable for battery-operated and portable applications. Its operating temperature range of -40°C to +85°C ensures that it can withstand harsh operating environments.

The device comes in a 16-pin wide SO package, making it compact and easy to integrate into system designs. The MAX696CWE+T is also fully specified over the temperature range and is available in a commercial and military temperature range, ensuring reliability for a wide range of applications.

Whether you're designing an embedded system, a communication device, or any other microprocessor-based product, the MAX696CWE+T provides the necessary protection features to maintain system integrity and prevent data loss during power failures or unexpected system behavior.