MAX6314US44D2

Supervisors Overview

The MAX6314US44D2 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 threshold voltage of 4.4V. The device features an active-low, bidirectional RESET output compatible with interfaces such as the 68HC11. It includes a manual reset input for system control. Key electrical parameters include a maximum supply voltage of 5.5V, a reset delay time of 200ms, and quiescent current of 5uA. Accuracy is specified at 1.8%. The component operates within a temperature range of -40°C to +85°C and is housed in a SOT-143-4 surface-mount package.

Supervisors Feature Summary

• Bidirectional RESET output enables direct connection to microprocessors with bidirectional reset inputs, eliminating external components.
• Manual reset input allows for user-initiated system resets independent of power supply conditions.
• Low quiescent current consumption supports battery-operated applications requiring extended operational life.

Supervisors Applications

• Microprocessor reset circuits
• Digital system power supervision
• Battery-powered equipment monitoring

Supervisors Procurement Notes

Verify the specific suffix D2 against official Analog Devices documentation to confirm pinout and electrical characteristics match the target design requirements. Ensure the sourcing channel provides genuine components with traceable manufacturing history. Cross-reference the RoHS compliance status if environmental regulations apply to the end product. Confirm availability through authorized distributors or verified suppliers to mitigate counterfeit risks.

Supervisors Selection Notes

Select this component when a bidirectional reset interface is required for legacy or specific microprocessor architectures like the 68HC11 family. The fixed 4.4V threshold suits systems operating near this voltage level. Consider the 200ms delay and 1.8% accuracy for timing-critical applications. Evaluate the SOT-143-4 package constraints against PCB layout limitations. Compare against other MAX6314 variants if different thresholds or open-drain outputs are preferred.

Supervisors Part Context

The MAX6314 series comprises low-power CMOS microprocessor supervisory circuits designed for reliable power management. This specific model belongs to the MAX6314 family, which offers various threshold voltages and output configurations. The US44D2 designation indicates a 4.4V threshold and SOT-143-4 packaging. These devices are engineered to replace discrete resistor networks, reducing board space and assembly costs while maintaining high reliability in digital systems.

Supervisors FAQ

Is the RESET output open-drain or push-pull?

The RESET output is active-low and bidirectional, allowing it to drive bidirectional reset inputs directly without requiring external pull-up resistors for standard operation.

Does the MAX6314US44D2 include a watchdog timer?

No, the MAX6314US44D2 does not include a built-in watchdog timer; it functions solely as a voltage supervisor with manual reset capability.