XC6123A639ER-G

Supervisors Overview

The XC6123A639ER-G is a supervisory circuit manufactured by Torex Semiconductor Ltd, designed for monitoring single voltage rails. It integrates both a voltage monitor and a watchdog timer within a compact 6-USPC (1.8x2mm) surface-mount package. The device features an open-drain or open-collector output with active-low reset signaling. It operates across a wide supply voltage range of 1V to 6V and supports a threshold voltage of 3.9V. The component functions reliably in temperatures from -40°C to +85°C, drawing a typical operating current of 12µA.

Supervisors Feature Summary

• Integrates dual functionality combining a precise voltage monitor with a watchdog timer circuit for comprehensive system supervision.
• Provides flexible output configuration through an open-drain or open-collector interface compatible with various logic families.
• Supports battery backup switching capabilities to maintain system integrity during power transitions.

Supervisors Applications

• Embedded systems requiring reliable CPU reset generation and fault detection
• Portable electronic devices utilizing low-voltage battery power supplies
• Industrial control units needing watchdog protection against software hangs

Supervisors Procurement Notes

Verify the specific suffix ER-G confirms the 6-USPC package type and tape-and-reel packaging format. Confirm the A-series designation aligns with the required 3.9V threshold voltage for your design. Ensure compatibility with the specified operating temperature range and supply voltage limits before finalizing procurement orders.

Supervisors Selection Notes

Select this component when a combined voltage supervisor and watchdog timer is required in a minimal footprint. The 6-USPC package suits space-constrained designs. Verify that the open-drain output matches the pull-up requirements of the target microcontroller or logic interface. Ensure the 1V minimum operating voltage covers the lowest expected supply rail condition.

Supervisors Part Context

This part belongs to the XC6123 series of supervisory circuits from Torex Semiconductor. The series offers various threshold voltages and package options to suit different monitoring needs. The XC6123A variant specifically denotes the 3.9V threshold setting within this family of low-power management ICs.

Supervisors Replacement Considerations

Direct substitutes include other XC6123 series parts with identical package and threshold specifications. Cross-reference with XC6123C639ER-G if package variations are acceptable. Verify pinout compatibility before substituting with generic supervisor ICs.