Maxim Integrated MAX6340UK29 - Precision Microprocessor Reset Circuit

The MAX6340UK29 from Maxim Integrated is a high-quality precision microprocessor (µP) supervisory circuit designed to monitor power supplies in digital systems. It provides a significant level of system reliability and accuracy required for modern electronic applications. This device is particularly suitable for portable and battery-powered equipment due to its low power consumption and small size.

This supervisory circuit ensures that the µP boots up in a predictable state by asserting a reset signal whenever the VCC supply voltage falls below a preset threshold. The MAX6340UK29 maintains the reset output for a minimum of 140ms after VCC has risen above the reset threshold level, providing ample time for the system to stabilize. The reset threshold voltage for the MAX6340UK29 variant is precisely set at 2.93V, making it an ideal choice for 3.3V powered systems.

One of the key features of the MAX6340UK29 is its ultra-low supply current of only 1µA, which contributes to the extended battery life of portable devices. The device is packaged in a space-saving SOT23, which is highly beneficial for applications where board space is at a premium.

The MAX6340UK29 also offers a manual reset input that allows for a system reset to be triggered with an external switch or logic signal. This added functionality provides system designers with greater flexibility and control over the reset behavior of their applications.

In summary, the Maxim Integrated MAX6340UK29 is a compact, low-power, and highly accurate reset circuit that provides essential protection for microprocessors by monitoring the system voltage and ensuring that the processor starts up correctly after power-up or during a brownout condition. Its precision voltage monitoring and extended reset timeout period make it an excellent choice for a wide range of applications, from consumer electronics to industrial control systems.

To learn more about the MAX6340UK29 and to access datasheets and technical support, visit Maxim Integrated's official website or contact your local Maxim Integrated distributor.