Maxim Integrated MAX6813TEUR+T Single/Dual Low-Voltage, Low-Power µP Reset Circuits

The MAX6813TEUR+T from Maxim Integrated is a sophisticated microprocessor (µP) supervisory circuit that provides an optimal solution for monitoring power supplies in µP and digital systems. It is designed to maintain system integrity by asserting a reset signal whenever the VCC supply voltage falls below its preset threshold. This compact and efficient device is essential for applications where reliable operation is paramount, particularly during power-up, power-down, and brown-out conditions.

This product comes in a tiny 3-pin SOT23 package, making it an ideal choice for space-constrained applications. The MAX6813TEUR+T is capable of operating over a wide voltage range from 1.2V to 5.5V, which allows it to support a variety of digital systems and portable devices. With its low supply current of only 1.5µA, this reset circuit is particularly well-suited for battery-powered applications where power efficiency is critical.

One of the key features of the MAX6813 is its ability to assert a reset signal for a minimum of 140ms (typical) when it detects that the supply voltage has dropped below the factory-set reset threshold. This ensures that the µP has sufficient time to return to a stable operating condition before the reset signal is deasserted. The device's reset threshold is available in a range of factory-set voltages, allowing designers to select the appropriate version for their specific requirements.

The MAX6813TEUR+T also includes a debounced manual reset input, which provides a direct way to initiate a system reset. This feature can be invaluable for system maintenance or during debugging processes, giving users manual control over the reset function.

In summary, the Maxim Integrated MAX6813TEUR+T is a highly reliable, low-power reset circuit designed to ensure the stable operation of microprocessor systems. Its small size, low power consumption, and precision voltage monitoring make it an excellent choice for a wide array of applications, including portable devices, computers, controllers, and intelligent instruments.