CAT1163WI25

Supervisors Overview

The CAT1163WI-25-G is a voltage supervisory circuit manufactured by onsemi, designed for CPU monitoring applications. It features a 2.5 V threshold voltage with a 270 ms reset delay time and operates within a supply voltage range of 2.7 V to 6 V. The device includes a manual reset input and a watchdog timer, housed in an SOIC-8 package. It supports active high, active low, and open drain outputs, functioning reliably between -40°C and +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer for system reliability monitoring
• Provides configurable output polarity options including active high, active low, and open drain
• Includes a manual reset input for direct user control

Supervisors Applications

• CPU power supply supervision
• Embedded system reset management
• Microcontroller board protection

Supervisors Procurement Notes

Verify component authenticity through authorized channels as the part status is listed as obsolete. Confirm RoHS compliance details via official datasheets before integration. Ensure the specific suffix matches required packaging and temperature grades. Cross-reference pinouts with current design requirements due to potential legacy variations.

Supervisors Selection Notes

Select this component when a dedicated watchdog timer and manual reset capability are required alongside voltage supervision. The SOIC-8 package suits surface-mount designs with limited space. Verify that the 2.5 V threshold aligns with the target system's logic levels and operating voltage constraints.

Supervisors Part Context

This part belongs to the CAT1163 series of supervisory circuits from onsemi. It shares functional similarities with other variants like the CAT1162 and CAT1161 but distinguishes itself through the inclusion of a watchdog timer and manual reset feature, unlike the CAT1162 which lacks these elements.

Supervisors Replacement Considerations

Direct substitutes include CAT1163WI-28-G and CAT1163WI-30-T3 for different voltage thresholds. For non-watchdog alternatives, consider the CAT1162 series. Verify pin compatibility and electrical specifications before substitution.