MAX6314US44D2-T

Supervisors Overview

The MAX6314US44D2-T is a low-power CMOS microprocessor supervisory circuit designed to monitor power supplies in µP and digital systems. It features a bidirectional RESET output compatible with inputs like the 68HC11. The device monitors a single input channel with a fixed threshold voltage of 4.4V (typical). It operates within a supply voltage range of 1V to 5.5V, consuming only 5µA of quiescent current. The reset timeout period is 200ms. It includes a debounced manual reset input and functions in an industrial temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Bidirectional RESET output allows direct connection to microprocessors with bidirectional reset pins, such as the 68HC11.
• Includes a debounced manual reset input for user-initiated system resets.
• Eliminates external components by integrating monitoring and reset timing functions.
• Low quiescent current consumption supports battery-powered applications.

Supervisors Applications

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

Supervisors Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when ordering. Confirm the threshold voltage variant matches the design requirement, as the MAX6314 series offers multiple fixed voltage options. Check RoHS compliance status if required for your manufacturing process. Ensure the SOT-143-4 package fits your PCB layout constraints. Validate availability through authorized distributors as supply levels may vary.

Supervisors Selection Notes

Select this part when a bidirectional reset interface is necessary for compatibility with legacy or specific microcontroller architectures. Choose the US44D2 variant specifically for a 4.4V reset threshold. Consider the 5µA current draw for low-power designs. Verify that the 200ms timeout meets the system's startup requirements. Ensure the operating temperature range covers the intended environment.

Supervisors Part Context

The MAX6314 belongs to Maxim Integrated's family of low-power CMOS microprocessor supervisory circuits. These devices are engineered to provide reliable power management by detecting under-voltage conditions and initiating system resets. The series is characterized by its ability to reduce component count and cost while maintaining high accuracy and reliability in embedded applications.

Supervisors Replacement Considerations

Other MAX6314 variants with different threshold voltages (e.g., MAX6314US26, MAX6314US33) may be used if the reset voltage level can be adjusted to match the new threshold. Ensure the replacement maintains the SOT-143-4 package and bidirectional output capability for pin-to-pin compatibility.