XC6123E640ER-G

Supervisors Overview

The XC6123E640ER-G is a high-precision voltage monitor manufactured by Torex Semiconductor, designed for single-input power supply supervision. It operates within a supply voltage range of 1.0 V to 6.0 V and features a fixed detection threshold of 4.0 V with a typical hysteresis width of 5% of the detection voltage. The device incorporates an integrated watchdog timer and utilizes N-channel open-drain CMOS output drivers. Key electrical parameters include a maximum operating current of 12 µA and a quiescent current of 5 µA. It supports a reset delay time of 50 ms and functions reliably across an industrial temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer function controllable via the EN/ENB pin, allowing independent operation of the voltage detector while disabling the watchdog.
• Utilizes laser trimming technology to ensure high-precision detection voltages with minimal temperature drift characteristics.
• Features built-in delay circuits that eliminate the need for external components to generate release delay signals.

Supervisors Applications

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

Supervisors Procurement Notes

Verify the specific suffix ER-G against official Torex documentation to confirm the USP-6C package configuration and lead times. Ensure compatibility with existing PCB footprints for 6-pin surface-mount assemblies. Cross-reference datasheet revisions to validate parameter consistency before finalizing procurement orders.

Supervisors Selection Notes

Select this component when a low-quiescent-current supervisor with integrated watchdog functionality is required for 1V to 6V systems. The open-drain output allows flexible interfacing with various logic levels. Verify that the 4.0V threshold aligns with the target rail voltage and that the 50ms reset delay meets system timing requirements.

Supervisors Part Context

This part belongs to the XC6123 series of voltage detectors with watchdog functions. The series shares common architectural features including CMOS process technology and internal reference sources. Variations in the model number typically denote differences in detection voltage thresholds, package types, or specific functional configurations within the same product family.

Supervisors Replacement Considerations

Direct replacements within the XC6123 series require matching the detection voltage (e.g., XC6123E6xx) and package type (USP-6C). Other series like XC6121 or XC6122 may offer similar functionality but differ in pinout or control features; verify electrical compatibility before substitution.