CAT1161WI-42-GT3

Supervisors Overview

The CAT1161WI-42-GT3 is a voltage supervisory circuit manufactured by onsemi, designed for CPU supervision applications. It integrates a 16K EEPROM for data storage within the monitoring system. The device operates with a single monitored input and features a manual reset capability alongside an integrated watchdog timer. It supports multiple output configurations including active high, active low, and open drain options. The component is housed in an SOIC-8 package suitable for surface mount technology.

Supervisors Feature Summary

• Integrates non-volatile 16K EEPROM for persistent data retention within the supervisory circuit
• Includes a built-in watchdog timer to ensure system reliability and fault recovery
• Provides flexible output drive options supporting active high, active low, and open drain signals
• Features manual reset functionality for direct user control over system initialization

Supervisors Applications

• CPU power supply monitoring and supervision
• Embedded systems requiring reliable reset management
• Industrial control units with data logging needs
• Consumer electronics requiring voltage oversight

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or official manufacturer channels due to potential availability constraints. Confirm that the specific suffix matches the required package and tape/reel specifications. Check current lifecycle status as this part may be subject to discontinuation notices. Ensure compliance with RoHS directives if environmental regulations apply to the final assembly. Cross-reference datasheet revisions to guarantee compatibility with existing design parameters.

Supervisors Selection Notes

Select this component when a combined voltage supervisor and EEPROM solution is required for space-constrained designs. Evaluate the threshold voltage requirements against the target system's operating rails. Consider the SOIC-8 footprint for PCB layout compatibility. Assess the need for watchdog functionality versus simpler reset-only circuits. Verify that the manual reset feature aligns with the system's user interface requirements.

Supervisors Part Context

This part belongs to the CAT1161 series of supervisory circuits from onsemi. The series typically offers various threshold voltages and package options to suit different application needs. It falls under the broader category of power management ICs, specifically within the voltage supervisory sub-category. The product line focuses on providing reliable system protection and data storage integration for microcontroller-based designs.

Supervisors Replacement Considerations

Consult the official onsemi documentation for confirmed substitute part numbers within the same family. Verify that alternative components match the pinout, threshold voltage, and EEPROM capacity. Ensure that any replacement maintains the same package type and electrical characteristics. Do not assume cross-compatibility with other series without explicit manufacturer validation.