CAT1163WI-25-G

Supervisors Overview

The CAT1163WI-25-G is a voltage supervisory circuit manufactured by onsemi, designed for CPU monitoring applications. It integrates a 16K serial EEPROM with hardware memory protection capabilities. The device features a single monitored input with a threshold voltage of 2.5 V and an overvoltage threshold of 2.7 V. It includes a manual reset function and a watchdog timer. The reset delay time is specified at 270 ms. Operating supply voltage ranges from a minimum of 2.7 V to a maximum of 6 V. The component operates within a temperature range of -40°C to +85°C and consumes 3 mA of working power current. It is housed in an SOIC-8 package.

Supervisors Feature Summary

• Integrates 16K serial EEPROM with hardware memory protection for microcontroller-based systems
• Provides precision reset control with active high, active low, and open drain output options
• Includes built-in watchdog timer functionality for system reliability
• Supports manual reset input for user-initiated system recovery

Supervisors Applications

• Microcontroller-based system supervision
• CPU voltage monitoring
• Embedded systems requiring integrated memory and reset control

Supervisors Procurement Notes

Verify the exact suffix 'G' for lead-free compliance and RoHS status against the manufacturer's latest documentation. Confirm the specific pinout and electrical characteristics match the design requirements, as variations may exist within the CAT1163 family. Check for obsolescence or lifecycle status updates directly from onsemi authorized channels before finalizing procurement plans.

Supervisors Selection Notes

Select this component when a combined solution for voltage supervision and non-volatile data storage is required. Ensure the 2.5 V threshold aligns with the target system's operating voltage. Verify that the SOIC-8 package fits the PCB layout constraints. Consider the 3 mA quiescent current if power efficiency is critical. Confirm compatibility with the system's reset timing requirements given the 270 ms delay.

Supervisors Part Context

The CAT1163 series represents a class of supervisory circuits that combine voltage monitoring with integrated serial EEPROM memory. This integration simplifies board design by reducing component count for microcontroller applications. The WI-25 variant specifically denotes the 2.5 V threshold version within the SOIC-8 package family, offering a compact solution for systems needing both reset control and small data storage.

Supervisors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.