MAX6314US28D3-T

Supervisors Overview

The MAX6314US28D3-T is a low-power CMOS microprocessor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It monitors power supplies in microprocessor and digital systems with a threshold voltage of 2.8V and an overvoltage threshold of 2.87V. The device features a bidirectional active-low reset output compatible with interfaces like the 68HC11, providing a fixed reset delay time of 200 ms. It operates within a supply voltage range up to 5.5 V and maintains high accuracy of 1.8%. Designed for surface-mount installation, it is housed in a compact SOT-143-4 package. The circuit draws a typical operating supply current of 5 uA and functions reliably across an extended temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Bidirectional RESET output enables direct connection to microprocessors with bidirectional reset inputs, such as the 68HC11, eliminating external component adjustments.

Supervisors Applications

• Monitoring power supplies in microprocessor systems
• Digital system supervision requiring manual reset capability

Supervisors Procurement Notes

Verify the specific suffix D3 against official datasheets to confirm the exact threshold voltage variant, as suffixes often denote specific voltage tolerances or packaging types. Confirm RoHS compliance status directly with the manufacturer documentation. Ensure the SOT-143-4 package matches your PCB footprint requirements. Cross-reference the part number with authorized distributors to validate authenticity and avoid counterfeit components.

Supervisors Selection Notes

Select this component when a bidirectional reset interface is required for compatibility with legacy microprocessors like the 68HC11. Choose this part if the application demands a fixed 2.8V threshold with 1.8% accuracy and low quiescent current. It is suitable for designs needing manual reset functionality without watchdog timer support. Consider the SOT-143-4 package size constraints and the -40°C to +85°C operating temperature range during selection.

Supervisors Part Context

The MAX6314 belongs to the Maxim Integrated line of low-power CMOS microprocessor supervisory circuits designed to monitor power supplies in microprocessor and digital systems. This series provides excellent circuit reliability and low cost by eliminating external components and adjustments. The MAX6314 specifically offers a bidirectional reset output, distinguishing it from standard open-drain variants, making it ideal for interfacing with specific microprocessor architectures.

Supervisors FAQ

What is the function of the bidirectional RESET output?

The bidirectional RESET output allows the MAX6314 to be directly connected to microprocessors with bidirectional reset inputs, such as the 68HC11, facilitating seamless integration without additional interface components.

Does the MAX6314 include a watchdog timer?

No, the MAX6314 does not include a watchdog timer; it functions solely as a voltage supervisory circuit with manual reset capability.