XC6123F643MR-G

Supervisors Overview

The XC6123F643MR-G is a high-precision voltage detector with watchdog function manufactured by Torex Semiconductor. It operates within a supply voltage range of 1.0 V to 6.0 V and features a detection threshold of 4.3 V. The device utilizes CMOS process technology, drawing a typical operating current of 12 uA and a static current of 5 uA. It provides an open-drain output and includes a built-in delay circuit for release timing. The component is housed in an SOT-25-5 package and supports operation from -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer with selectable timeout periods for system monitoring
• Features an ON/OFF control pin (EN/ENB) to independently disable the watchdog while maintaining voltage detection
• Utilizes laser-trimmed internal reference for high-precision voltage monitoring without external components

Supervisors Applications

• Microprocessor reset circuits
• Memory battery backup systems
• Power failure detection logic

Supervisors Procurement Notes

Verify the specific release delay time configuration required for the application, as this parameter varies across the XC6123 series. Confirm that the open-drain output compatibility matches the target system's input requirements. Ensure the selected part number suffix corresponds to the desired threshold voltage and packaging format before finalizing procurement orders.

Supervisors Selection Notes

Select this component when precise voltage supervision combined with watchdog functionality is required in space-constrained designs. The low current consumption makes it suitable for battery-operated equipment. Verify that the 4.3 V threshold aligns with the monitored rail voltage and that the SOT-25-5 footprint fits the PCB layout constraints.

Supervisors Part Context

This part belongs to the XC6121/XC6122/XC6123/XC6124 series of voltage detectors. These devices are designed for applications requiring reliable power management and system stability. The series distinguishes itself by combining voltage monitoring with watchdog capabilities in a compact surface-mount package, offering flexibility through configurable timing parameters.

Supervisors Replacement Considerations

Cross-reference with other XC6123 variants sharing the same SOT-25-5 package and 4.3 V threshold if availability is limited. Ensure functional equivalence regarding the open-drain output structure and EN/ENB pin behavior when substituting.