Product Overview: MAX803LEXR+T from Maxim Integrated

The MAX803LEXR+T is a highly reliable, low-power microprocessor (µP) supervisory circuit designed and manufactured by Maxim Integrated, a leader in analog and mixed-signal engineering. This compact supervisory IC is engineered to maintain system integrity by monitoring the power supply voltage in digital systems. It is particularly suitable for portable and battery-powered applications due to its low power consumption and small footprint.

One of the key features of the MAX803LEXR+T is its ability to assert a reset signal whenever the V<sub>CC supply voltage falls below a preset threshold, ensuring that the µP boots up in a known state. The reset output remains asserted for a period after V<sub>CC has risen above the reset threshold, providing the system with a stable interval to initialize. This reset timeout period is typically 140ms, which allows adequate time for the system to reset safely.

This supervisory circuit is available in a compact, 3-pin SC70 package, making it ideal for space-constrained applications. The MAX803LEXR+T operates over a wide voltage range from 1.2V to 5.5V, catering to a variety of digital systems and power supply configurations. It also features a low supply current of only 1µA (typical), which is crucial for extending the battery life in portable devices.

Additional functionality includes a manual reset input that allows the user to trigger a reset manually, providing an extra level of control. This input can also be used as a debounced switch input, which can interface directly with a momentary push-button to initiate system resets without the need for external components.

The MAX803LEXR+T is part of Maxim Integrated's extensive family of µP supervisory circuits, which are designed to improve the reliability and performance of digital systems. With its precise voltage monitoring, low power consumption, and small size, the MAX803LEXR+T is an excellent choice for designers looking to enhance system stability and prolong battery life in their next project.

Overall, the MAX803LEXR+T is a testament to Maxim Integrated's commitment to providing innovative, high-quality integrated circuits that meet the stringent requirements of modern electronic systems.