Maxim Integrated MAX793SCSE+T Microprocessor Supervisory Circuit

The MAX793SCSE+T from Maxim Integrated is a highly reliable microprocessor (µP) supervisory circuit designed to monitor power supplies in µP and digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in systems that require voltage monitoring and battery control functions in their operations.

This device is specifically engineered to keep systems running smoothly by providing several key features. It asserts a reset signal whenever the VCC supply voltage declines below a preset threshold, ensuring that the µP starts up in a known state. The reset signal remains asserted for a minimum timeout period after VCC has risen above the reset voltage threshold, which allows the power supply and processor to stabilize before operation resumes.

The MAX793SCSE+T offers an adjustable reset threshold voltage, which can be set by external resistors. This flexibility allows the device to be tailored to specific system requirements, ensuring compatibility with a wide range of microprocessors and other digital systems. Additionally, it comes with a debounced manual reset input that enables a reset to be triggered with a simple push of a button.

Other notable features of this supervisory circuit include a low supply current, which makes it suitable for battery-powered applications, and a wide operating temperature range, ensuring reliable operation under varying environmental conditions. The device is supplied in a narrow SO package, making it ideal for space-constrained applications.

With its built-in watchdog timer, the MAX793SCSE+T can monitor software execution integrity by resetting the µP if it fails to strobe within a preset time frame. This is crucial for systems that cannot afford to have software hang-ups or malfunctions.

Whether used in computers, controllers, intelligent instruments, or portable equipment, the MAX793SCSE+T provides the essential functions needed to enhance system reliability and prevent data corruption due to unpredictable events like power outages or system errors.

Overall, the MAX793SCSE+T is a testament to Maxim Integrated's commitment to providing advanced circuit protection solutions that are both effective and easy to implement in a variety of applications.