CAT1641WI-30-T3

Supervisors Overview

The CAT1641WI-30-T3 is a voltage supervisory circuit manufactured by onsemi, designed for CPU monitoring applications. It operates within a supply voltage range of 3 V to 5.5 V and features a single monitored input. The device provides an active high or open drain output with a manual reset capability and a fixed reset delay time of 270 ms. It lacks a watchdog timer and battery backup switch. The component is housed in an SOIC-8 package and supports surface mount installation. It functions reliably across an operating temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Provides voltage supervision with manual reset functionality
• Features active high or open drain output configuration
• Includes fixed reset delay time for stable operation

Supervisors Applications

• CPU power supply monitoring
• Voltage supervision in embedded systems
• Manual reset control circuits

Supervisors Procurement Notes

Verify the specific suffix T3 indicates tape and reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the SOIC-8 footprint matches the target PCB design. Check current availability as distribution channels may vary. Validate that the 3V threshold aligns with the system's voltage requirements.

Supervisors Selection Notes

Select this component when a single-input voltage supervisor with manual reset is required. The 270 ms delay ensures adequate power-up stability. The open drain option allows flexible logic interfacing. Verify the 5.5 V maximum rating suits the highest expected supply voltage. Consider the -40°C to +85°C range for industrial or commercial environments.

Supervisors Part Context

This part belongs to the CAT1641 series of voltage supervisors from onsemi. The series offers various threshold voltages and output configurations. The WI suffix typically denotes the SOIC-8 wide body package variant. The T3 suffix specifies the reel packaging format for automated assembly processes.

Supervisors Replacement Considerations

Consult the official datasheet for direct pin-to-pin compatible alternatives within the same family. Verify electrical parameters such as threshold voltage and reset delay match the original design requirements before substitution.