MAX6314US31D1+T

Supervisors Overview

The MAX6314US31D1+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 fixed reset threshold voltage of 3.1V. The device features a bidirectional RESET output compatible with inputs such as the 68HC11, eliminating the need for external components. It includes a debounced manual reset input and provides a guaranteed reset timeout period of 200ms after the supply voltage rises above the threshold or manual reset is deasserted.

Supervisors Feature Summary

• Bidirectional RESET output allows direct connection to microprocessors with bidirectional reset inputs like the 68HC11
• Integrated debounced manual reset input for user-initiated system resets
• Fixed threshold voltage design eliminates external component adjustments
• Low-power CMOS construction ensures efficient operation in digital systems

Supervisors Applications

• Microprocessor (µP) power supply monitoring
• Digital system supervision
• Systems requiring 68HC11-compatible reset interfaces

Supervisors Procurement Notes

Verify the specific suffix D1 against official datasheets to confirm the 3.1V threshold variant. Confirm package type SOT-143 compatibility with your PCB footprint. Check current manufacturing status as some variants may be obsolete. Ensure RoHS compliance requirements match the + suffix designation. Validate bidirectional interface requirements with the target microcontroller before procurement.

Supervisors Selection Notes

Select this component when a fixed 3.1V threshold is required for system supervision. Choose the bidirectional output feature if interfacing with legacy microcontrollers like the 68HC11 that utilize bidirectional reset pins. Consider the SOT-143 package for space-constrained surface-mount applications. Verify that the 200ms reset timeout meets the system's startup timing requirements.

Supervisors Part Context

The MAX6314 series comprises low-power CMOS supervisory circuits designed for microprocessor and digital system reliability. These devices monitor supply voltages and assert reset signals when thresholds are breached. The US suffix indicates the SOT-143 package option. The D1 suffix specifies the 3.1V threshold voltage variant within the family.

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, without additional interface components.

How does the manual reset input operate?

The manual reset input is debounced internally. Asserting this input forces the RESET output active regardless of the supply voltage level.

What is the reset timeout period?

The device provides a guaranteed reset timeout period of 200ms after the supply voltage rises above the reset threshold or after the manual reset is deasserted.