XC6121F518ER-G

Supervisors Overview

The XC6121F518ER-G is a high-precision voltage detector with watchdog function and ON/OFF control, manufactured by Torex Semiconductor using CMOS process technology. It features a fixed detect threshold voltage of 1.8V and operates within a supply voltage range of 1.0V to 6.0V. The device includes an internal delay circuit for release delay time and supports N-channel open-drain output configuration. It functions across an operating temperature range of -40°C to +85°C and is housed in a compact 6-USP (1.8x2) surface-mount package.

Supervisors Feature Summary

• Integrated watchdog timer function with timeout period monitoring capability
• Built-in delay circuit eliminates the need for external components for release delay
• EN/ENB pin allows forced OFF control of the watchdog function while maintaining voltage detection operation

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 'F' indicates the correct watchdog timeout period setting from the official datasheet table, as this series offers multiple timeout options. Confirm the 'E' suffix corresponds to the USP-6 package variant. Ensure RoHS compliance documentation matches the specific manufacturing batch requirements for your assembly process.

Supervisors Selection Notes

Select this component when a fixed 1.8V detection threshold is required alongside integrated watchdog functionality. The low current consumption makes it suitable for battery-powered applications. Verify that the N-channel open-drain output interface is compatible with the target microprocessor or system logic levels before finalizing the design.

Supervisors Part Context

This part belongs to the XC6121/XC6122/XC6123/XC6124 series of voltage detectors. The XC6121 designation specifically denotes the version with an EN/ENB pin for controlling the watchdog function state independently of the voltage detection status, distinguishing it from variants without this control pin.

Supervisors Replacement Considerations

XC6121F518ER-G-N

Supervisors FAQ

How is the watchdog function controlled?

The watchdog function can be forced OFF by setting the EN/ENB pin to a low or high level, while the voltage detector remains operational.

What is the output configuration?

The device features an N-channel open-drain output configuration.