XC6123F649MR-G

Supervisors Overview

The XC6123F649MR-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 4.9 V. The device utilizes CMOS technology, drawing a typical operating current of 12 uA and a static current of 5 uA. It provides an N-channel open-drain output and includes a built-in delay circuit for release timing. The component supports a watchdog timeout period of 800 ms and offers a reset delay time of 200 ms. It is housed in a compact SOT-25-5 package and functions reliably across an industrial temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Integrates a high-precision voltage detector with a dedicated watchdog timer function using laser-trimmed internal reference voltages.
• Features an N-channel open-drain output driver that asserts low when the monitored voltage falls below the detection threshold.
• Includes an enable pin (EN/ENB) allowing independent control to disable the watchdog function while maintaining voltage monitoring operations.

Supervisors Applications

• Microprocessor watchdog monitoring and reset circuits
• Memory battery backup circuits
• System power-on reset circuits
• Power failure detection

Supervisors Procurement Notes

Verify the specific suffix codes against the official datasheet to confirm the exact detection voltage, watchdog timeout, and release delay parameters. Ensure the ordering part number matches the required package type and RoHS compliance status. Cross-reference the manufacturer's latest documentation to validate any revisions or updates to the electrical characteristics before finalizing procurement specifications.

Supervisors Selection Notes

Select this component when a single-input voltage supervision with integrated system protection is required. The fixed 4.9 V threshold suits applications monitoring higher voltage rails. Consider the 800 ms watchdog timeout and 200 ms reset delay for timing requirements. The low quiescent current makes it suitable for battery-powered systems where power efficiency is critical alongside reliable fault detection.

Supervisors Part Context

This part belongs to the XC6123 series of voltage detectors with watchdog functions. The series employs CMOS process technology to achieve high precision and low current consumption. These devices are designed to replace discrete supervisor solutions by integrating reference sources, comparators, and delay circuits into a single small-footprint package, simplifying board layout and reducing component count.

Supervisors Replacement Considerations

Substitute parts within the XC6123 series must be selected based on matching the 4.9 V detection threshold, 800 ms watchdog timeout, and 200 ms reset delay. Verify that alternative candidates support the same SOT-25-5 package and operate within the 1.0 V to 6.0 V supply range. Ensure functional compatibility regarding the open-drain output configuration and enable pin behavior.