Maxim Integrated MAX6394US480D3/V+T Microprocessor Supervisory Circuit

The Maxim Integrated MAX6394US480D3/V+T 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 with 5V-powered circuits.

This supervisory circuit ensures that the μP is reset to a known state during power-up, power-down, or brown-out conditions. The MAX6394US480D3/V+T features a reset output which remains asserted for a minimum of 140ms after VCC has risen above the reset threshold level, ensuring the system has sufficient time to stabilize before the processor starts operating. This is crucial for systems that require a stable and reliable start-up sequence.

The reset threshold for the MAX6394US480D3/V+T is preset at 4.80V, which is suitable for systems that operate with a 5V power supply. The device operates with a supply voltage range from 1.0V to 5.5V, allowing for flexibility in various applications. It also supports a wide temperature range, making it ideal for use in environments with varying temperature conditions.

The MAX6394US480D3/V+T comes in a compact, space-saving SOT-23 package, which is highly beneficial for space-constrained applications. Its small size, combined with the no external components requirement, makes it an excellent choice for portable devices, consumer electronics, and other systems where board space is at a premium.

Additionally, the device includes a manual reset feature. This allows for a system reset to be triggered manually, providing an extra layer of control for system maintenance or debugging. The manual reset input is debounced, ensuring that spurious glitches do not cause unintended resets.

Overall, the Maxim Integrated MAX6394US480D3/V+T is a robust and reliable solution for system monitoring. It provides vital protection for microprocessors by ensuring that systems operate within their specified power supply parameters, thus enhancing system stability and preventing data corruption.