XC6123D321ER-G

Supervisors Overview

The XC6123D321ER-G is a voltage detector and watchdog timer manufactured by Torex Semiconductor Ltd. It features a fixed output voltage threshold of 3.2V with 1% accuracy. The device operates within an input voltage range of 0.8V to 6.0V and consumes a typical supply current of 1.5µA. It includes a built-in watchdog timer with a typical timeout period of 100ms, which can be reset via the RESET pin. The output stage provides an open-drain or open-collector signal. The component is housed in a compact 6-USPC (1.8x2mm) package.

Supervisors Feature Summary

• Integrates a high-precision voltage monitor with a dedicated watchdog timer function for system reliability.
• Provides a reset signal through an open-drain output compatible with various logic families.
• Features low power consumption suitable for battery-operated applications.
• Includes a watchdog timer reset function to prevent system lockups.

Supervisors Applications

• Microcontroller system supervision
• Watchdog timer circuits in embedded systems
• Battery-powered portable devices requiring low quiescent current
• Industrial control systems needing voltage monitoring

Supervisors Procurement Notes

Verify the specific suffix ER-G corresponds to the 6-USPC package and tape-and-reel configuration when ordering. Confirm that the 3.2V detection threshold aligns with the target system's voltage requirements. Ensure compatibility with the open-drain output drive capability of the connected microcontroller or logic circuit. Check for RoHS compliance documentation if required by project specifications.

Supervisors Selection Notes

Select this component when a combined voltage supervisor and watchdog timer is required in a minimal footprint. The 3.2V threshold is suitable for 3.3V logic systems. Consider the 100ms typical timeout duration against the maximum allowable reset interval of the controlled processor. The low standby current makes it appropriate for energy-constrained designs compared to higher-current alternatives.

Supervisors Part Context

This part belongs to the XC6123 series of voltage detectors with integrated watchdog timers from Torex Semiconductor. The series is designed for applications requiring both power-on reset functionality and continuous system health monitoring. The XC6123 variant specifically offers a fixed detection voltage, distinguishing it from adjustable versions in the broader product line.

Supervisors Replacement Considerations

Direct substitutes include other XC6123 series parts with different voltage thresholds or timeout periods, such as XC6123D301ER-G for a 3.0V threshold. Cross-brand replacements require matching the 3.2V threshold, open-drain output type, and 6-USPC package dimensions.

Supervisors FAQ

What is the typical timeout period for the watchdog timer?

The typical watchdog timer timeout period is 100ms.

Can the watchdog timer be reset externally?

Yes, the watchdog timer can be reset by toggling the RESET pin.

What is the output configuration of the reset signal?

The reset signal is provided via an open-drain or open-collector output.