MAX6314US26D4-T

Supervisors Overview

The MAX6314US26D4-T is a low-power CMOS microprocessor supervisory circuit designed for monitoring power supplies in µP and digital systems. It features an active-low, bidirectional RESET output compatible with inputs like the 68HC11. The device monitors a single input with a fixed threshold voltage of 2.63V. It includes a debounced manual reset input and provides a minimum reset timeout period of 1.12 seconds. Operating temperature range is -40°C to +85°C. Supply voltage range is 1V to 5.5V. Package is SOT-143-4.

Supervisors Feature Summary

• Bidirectional RESET output allows direct connection to microprocessors with bidirectional reset inputs.
• Includes a debounced manual reset input for user-initiated system resets.
• Provides reliable supervision by eliminating external components and adjustments.

Supervisors Applications

• Microprocessor (µP) power supply monitoring
• Digital system reset circuits
• Systems requiring bidirectional reset compatibility

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or official manufacturer channels. Confirm package type matches SOT-143-4 specifications. Check datasheet revisions for any updates to electrical characteristics or pin configurations. Ensure compliance with RoHS directives if required for the specific application environment. Validate supply voltage ranges against system requirements before integration.

Supervisors Selection Notes

Select this part when a bidirectional reset interface is required for microprocessors such as the 68HC11 family. The fixed 2.63V threshold suits applications where this specific voltage level defines the valid operating window. Consider the 1.12s minimum timeout for ensuring stable power recovery. Verify that the SOT-143-4 package fits the PCB layout constraints. Evaluate the -40°C to +85°C temperature range against environmental conditions.

Supervisors Part Context

The MAX6314 belongs to Maxim Integrated's line of low-power CMOS supervisory circuits. It simplifies design by integrating reset generation and monitoring functions into a small surface-mount package. The bidirectional output feature distinguishes it from standard unidirectional reset ICs, offering flexibility for legacy or specific microcontroller architectures.

Supervisors Replacement Considerations

Check for MAX6314 variants with different threshold voltages (e.g., US33, US46) if voltage levels differ. Verify equivalent parts from Analog Devices or other manufacturers offering similar bidirectional reset functionality. Ensure pinout compatibility when substituting with generic equivalents.

Supervisors FAQ

What is the function of the bidirectional RESET output?

It allows the MAX6314 to be directly connected to microprocessors with bidirectional reset inputs, such as the 68HC11, without additional buffering.

How does the manual reset input work?

The manual reset input is debounced internally, allowing users to assert a reset signal manually while preventing noise-induced false triggers.

What is the minimum reset timeout period?

The device provides a minimum reset timeout period of 1.12 seconds after the supply voltage rises above the threshold or manual reset is deasserted.