CAT1641WI-28-T3

Supervisors Overview

The CAT1641WI-28-T3 is a voltage supervisory circuit manufactured by onsemi, designed for CPU monitoring applications. It features a threshold voltage of 2.8 V and supports a power supply range from 2.7 V to 6 V maximum. The device provides manual reset capability with a reset delay time of 270 ms. It operates within a temperature range of -40°C to +85°C and consumes 3 mA of working power current. The component utilizes an 8-SOIC surface-mount package and offers active high, active low, or open drain output types.

Supervisors Feature Summary

• Provides manual reset functionality for system supervision
• Supports multiple output configurations including active high, active low, and open drain
• Designed for CPU monitoring with integrated memory capabilities

Supervisors Applications

• CPU voltage supervision in embedded systems
• Power-on reset generation for microprocessors
• Manual reset control in industrial equipment

Supervisors Procurement Notes

This component is officially discontinued and obsolete. Verify availability through secondary market channels or confirm replacement part numbers before design finalization. Ensure compatibility with existing board layouts when sourcing alternatives.

Supervisors Selection Notes

Select this part only if legacy support is required. For new designs, consider modern equivalents with similar threshold voltages and package types. Verify output configuration requirements against system logic levels.

Supervisors Part Context

Part of the CAT1641 series of supervisory circuits. Related variants include CAT1641YI-28-T3 and CAT1641WI-30-T3. All share similar functional characteristics but differ in threshold voltages and package options.

Supervisors Replacement Considerations

Official discontinuation notice confirms end-of-life status. No direct substitute part numbers are publicly confirmed by onsemi for this specific variant.