MAX6314US44D1+T

Supervisors Overview

The MAX6314US44D1+T is a low-power CMOS microprocessor supervisory circuit designed to monitor power supplies in digital systems. It features a bidirectional RESET output compatible with microprocessors like the 68HC11 and includes a debounced manual reset input. The device operates within a supply voltage range of 1V to 5.5V, with a fixed threshold of 4.4V and an overvoltage threshold of 4.459V. It draws 5µA of supply current and provides a 2ms reset timeout period. Accuracy is ±1.8% at +25°C and ±2.5% over temperature. It functions between -40°C and +125°C in a SOT-143 package.

Supervisors Feature Summary

• Bidirectional RESET output simplifies direct interface to microprocessors with bidirectional I/Os
• Debounced manual reset input for user-initiated system resets
• Immune to short VCC transients to prevent false triggering
• Low 5µA supply current suitable for battery-powered applications

Supervisors Applications

• Microprocessor and microcontroller power monitoring
• Portable and battery-powered equipment
• Computers and controllers
• Intelligent instruments

Supervisors Procurement Notes

Verify the specific suffix D1 corresponds to the 2ms timeout period and 4.4V threshold as documented. Confirm RoHS compliance status for the +T variant. Check availability constraints as distribution channels may indicate limited stock or discontinuation. Ensure the SOT-143 package matches the target PCB footprint requirements before procurement.

Supervisors Selection Notes

Select this component when interfacing with bidirectional reset lines such as those found in 68HC11 architectures. Choose based on the required 4.4V threshold and 2ms timeout duration. Consider the wide operating temperature range for industrial environments. Verify that the low quiescent current meets the system's power budget constraints.

Supervisors Part Context

Part of the MAX6314 family of supervisory circuits from Analog Devices/Maxim Integrated. This series offers factory-set thresholds in 100mV increments. The MAX6314US44D1+T specifically targets applications requiring precise voltage monitoring with minimal external components. It serves as a drop-in replacement for older generations like the MAX811.

Supervisors Replacement Considerations

The MAX6314US44D1+T is pin-compatible with the MAX811. Other variants within the MAX6314 series offer different thresholds and timeout periods but share the same package and functionality.