Maxim Integrated MAX6701SKA-T Microprocessor Reset Circuit

The MAX6701SKA-T from Maxim Integrated is a compact, high-precision microprocessor (µP) supervisory circuit designed to monitor power supplies in µP and digital systems. It provides a significant level of system reliability through its reset function, ensuring that the µP boots up in a known state every time.

This supervisory circuit is particularly suitable for portable battery-powered equipment due to its low power consumption and small footprint. The MAX6701SKA-T comes in a space-saving 8-pin SOT-23 package, which is ideal for space-constrained applications.

One of the key features of the MAX6701SKA-T is its ability to assert a reset signal whenever the VCC supply voltage falls below a preset threshold, keeping it asserted for at least 140ms after VCC has risen above the reset threshold. This ensures that the system has sufficient time to stabilize before the processor starts executing code.

The device offers factory-set reset thresholds suitable for operation with a variety of supply voltages, accommodating common logic levels such as 5V, 3.3V, and others. Additionally, the MAX6701SKA-T's low supply current of 5µA (typical) makes it an energy-efficient choice for prolonging battery life in portable applications.

Another notable feature of the MAX6701SKA-T is its debounced manual reset input, which allows for a manual system reset. This makes it easy to initiate a system reset without the need for additional external hardware, simplifying design and reducing component count.

The MAX6701SKA-T also includes an active-low reset output, which is guaranteed to be in the correct state for VCC down to 1V. This allows the device to be used in systems with low operating voltages, ensuring reliable operation even during brownout conditions.

In summary, the Maxim Integrated MAX6701SKA-T is a robust, low-power microprocessor supervisory circuit that offers a simple and effective solution for system monitoring and reset functions. Its small size, low power consumption, and comprehensive feature set make it an excellent choice for a wide array of applications, from portable devices to complex digital systems.