XC6123F644MR-G

Supervisors Overview

The XC6123F644MR-G is a high-precision voltage monitor with an integrated watchdog timer manufactured by Torex Semiconductor. It operates within a supply voltage range of 1.0 V to 6.0 V and features a fixed detection threshold of 4.4 V. The device utilizes CMOS technology, drawing a typical operating current of 12 µA and a static current of 5 µA. It provides an active-low open-drain output and includes a built-in delay circuit for reset release timing. The component is housed in a compact SOT-25-5 surface-mount package and supports operation across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates a high-precision voltage detector with a dedicated watchdog timer function in a single CMOS chip.
• Features an internal delay circuit that eliminates the need for external components to generate release delay signals.
• Includes an EN/ENB control pin allowing independent switching of the watchdog function while maintaining voltage monitoring.

Supervisors Applications

• Microprocessor system reset circuits
• Watchdog timer supervision for embedded controllers
• Battery backup power management systems

Supervisors Procurement Notes

Verify the specific suffix codes against official datasheets to confirm threshold voltage and package type. Ensure compatibility with required operating temperatures and supply voltage ranges before integration. Cross-reference manufacturer part numbers to avoid confusion with similar series variants.

Supervisors Selection Notes

Select this component when a combined voltage supervisor and watchdog timer is required in a minimal footprint. The low current consumption makes it suitable for battery-operated devices. Verify that the 4.4 V threshold aligns with the monitored rail and that the SOT-25 package fits the design constraints.

Supervisors Part Context

This part belongs to the XC6123 series of voltage detectors with watchdog functions. The series is designed for applications requiring reliable power supervision and system reset management. It shares common architectural features with other members of the family, differing primarily in detection thresholds and packaging options.

Supervisors Replacement Considerations

Compatible substitutes include other XC6123 series variants with matching threshold voltages and packages. Verify functional equivalence regarding watchdog timeout periods and reset delay times before substitution.

Supervisors FAQ

How is the watchdog timer controlled?

The watchdog function can be enabled or disabled via the EN/ENB pin. Setting this pin to a specific logic level allows the watchdog to be turned off while the voltage detector continues to operate.

What is the output configuration?

The device features an open-drain output type that goes low when a detected voltage fault occurs or a watchdog timeout is triggered.