CAT1163WI-42-T3

Supervisors Overview

The CAT1163WI-42-T3 is a CPU supervisory circuit manufactured by onsemi, designed to monitor system voltage and provide reset signals. It integrates a 16K EEPROM for data storage. The device operates within a supply voltage range of 2.7 V to 6 V, with a specific threshold voltage of 4.2 V and an overvoltage threshold of 4.5 V. It features a manual reset input, a watchdog timer, and offers active high, active low, or open drain output types. The reset delay time is 270 ms. Operating temperatures range from -40°C to +85°C. It is housed in an SOIC-Wide-8 package.

Supervisors Feature Summary

• Integrates 16K EEPROM for non-volatile data storage alongside supervisory functions
• Includes a watchdog timer to detect software malfunctions
• Supports manual reset input for system control
• Provides flexible output configurations including active high, active low, and open drain

Supervisors Applications

• CPU power supply monitoring in embedded systems
• Data retention applications requiring integrated memory
• Industrial control systems operating in extended temperature ranges
• Consumer electronics requiring reliable reset management

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as indicated in official documentation. Check for obsolescence notices, as this part may be discontinued. Ensure the SOIC-Wide-8 package matches your PCB footprint requirements. Validate electrical specifications against your system design constraints before procurement.

Supervisors Selection Notes

Select this component when both voltage supervision and 16K EEPROM storage are required in a single package. Consider the 4.2 V threshold for systems operating near that voltage level. Evaluate the need for a watchdog timer and manual reset capability. Compare power consumption and package size against alternatives if space is constrained. Verify compatibility with I2C interface requirements if using the memory function.

Supervisors Part Context

This part belongs to the CAT1163 series of supervisory circuits from onsemi. These devices combine voltage monitoring with serial EEPROM functionality. The series typically includes variants with different voltage thresholds and packaging options. The CAT1163 family is designed for applications needing robust reset generation and data storage in compact form factors.

Supervisors Replacement Considerations

Check for CAT1163 variants with similar voltage thresholds (e.g., CAT1163WI-30-GT3). Verify package compatibility (SOIC-8 vs SOIC-Wide-8). Confirm functional equivalence regarding watchdog and EEPROM features.