CAT1641YI-42-GT3

Supervisors Overview

The CAT1641YI-42-GT3 is a voltage supervisory circuit manufactured by onsemi, designed for CPU power monitoring applications. It operates within a supply voltage range of 3 V to 5.5 V and features an under-voltage threshold between 4.25 V and 4.5 V. The device provides a manual reset function with a reset delay time of 5 µs and utilizes an open collector/drain output type. It does not include a watchdog timer or power-fail detection. The component is housed in a TSSOP-8 package and supports surface mount installation. Operating temperatures range from -40°C to +85°C, with a typical working supply current of 1 mA or 3 mA depending on configuration.

Supervisors Feature Summary

• Integrates CPU supervision with 64K EEPROM storage capabilities
• Provides manual reset functionality with rapid response delay
• Features open collector/drain output for flexible interfacing

Supervisors Applications

• CPU power supply monitoring systems
• Embedded controller reset circuits
• Data retention management in portable devices

Supervisors Procurement Notes

Verify component authenticity through authorized distributors due to potential counterfeit risks. Confirm RoHS compliance status via official datasheets before integration. Check manufacturer lifecycle notifications for end-of-life status updates. Ensure packaging specifications match design requirements. Validate electrical parameters against specific application needs prior to procurement.

Supervisors Selection Notes

Select this component when combined voltage supervision and non-volatile memory storage are required in a single package. Consider the TSSOP-8 footprint for space-constrained designs. Evaluate the 5 µs reset delay against system timing requirements. Verify compatibility with 3 V to 5.5 V supply rails. Assess the absence of watchdog functionality if automated timeout resets are necessary.

Supervisors Part Context

This part belongs to the CAT1641 series of supervisory circuits from onsemi, which combines power management IC functions with embedded EEPROM. The series targets applications requiring both system monitoring and data storage in compact packages. The YI suffix indicates the TSSOP-8 package variant, while GT3 denotes tape and reel packaging. This family simplifies board design by integrating multiple functions into one component.

Supervisors Replacement Considerations

CAT1641WI-42-GT3 offers identical functionality in a SOIC-8 package. CAT1641YI-42-G provides similar features in tube packaging. Verify pinout compatibility and thermal performance when substituting package types. Confirm EEPROM capacity matches application requirements across variants.