CAT1161W45

Supervisors Overview

The CAT1161W45 is a voltage supervisory circuit manufactured by onsemi, designed for CPU monitoring applications. It integrates a 16K EEPROM for data storage alongside its supervision functions. The device operates within a supply voltage range of 2.7 V to 6 V and features a threshold voltage of 4.5 V. It provides manual reset capability and includes a watchdog timer. The output supports active high, active low, and open drain configurations with a reset delay time of 270 ms. It is available in surface-mount packages such as SOIC-8 and operates across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates 16K EEPROM for non-volatile data storage within the supervisory circuit
• Includes built-in watchdog timer functionality for system reliability
• Supports multiple output types including active high, active low, and open drain
• Provides manual reset capability for user-initiated system control

Supervisors Applications

• CPU voltage supervision in embedded systems
• Data storage integration in microcontroller-based designs
• Watchdog timer implementation for fault detection
• Manual reset circuits in industrial control units

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package type and suffix variations match design requirements. Check for obsolescence status as this series may be discontinued. Ensure RoHS compliance documentation is available for regulatory adherence. Validate electrical parameters against specific application needs before procurement.

Supervisors Selection Notes

Select based on required threshold voltage and package style. Consider the integrated EEPROM capacity if data retention is necessary. Verify output configuration compatibility with downstream logic. Check operating temperature range for environmental suitability. Compare power consumption and reset delay times against system specifications.

Supervisors Part Context

This part belongs to the CAT1161 family of supervisory circuits from onsemi. These devices combine voltage monitoring with memory functions. The family offers various threshold voltages and package options. They are designed for reliable operation in digital systems requiring both supervision and data storage capabilities.

Supervisors Replacement Considerations

Check for CAT1161 variants with different voltage thresholds or packages. Verify functional equivalence regarding EEPROM size and watchdog features. Confirm pinout compatibility for direct replacement. Review datasheet updates for any parameter changes in newer revisions.