CAT1162WI-25-G

Supervisors Overview

The CAT1162WI-25-G is a voltage supervisory circuit manufactured by onsemi, designed for CPU monitoring applications. It integrates a precision reset controller with an I²C serial CMOS EEPROM featuring 16K capacity and hardware write protection. The device operates within a supply voltage range of 2.7 V to 6 V, with a specific threshold voltage of 2.5 V and an overvoltage threshold of 2.7 V. It provides a manual reset input and supports active high, active low, or open drain outputs. The reset delay time is specified at 270 ms. The component is housed in an SOIC-8 surface-mount package and functions without a watchdog timer. It draws a working power supply current of 3 mA and dissipates up to 1 W of power.

Supervisors Feature Summary

• Integrates a 16K serial CMOS EEPROM with hardware memory write protection and I²C interface
• Provides precise system power supervision with brown-out protection capabilities
• Offers flexible output configurations including active high, active low, and open drain options

Supervisors Applications

• Microcontroller-based system power management
• CPU voltage supervision and reset control
• Data storage integration in embedded systems

Supervisors Procurement Notes

Verify the exact suffix and manufacturer details when sourcing this component, as availability may vary across distributors. Confirm RoHS compliance status and lead times directly with authorized suppliers. Ensure the selected variant matches the required threshold voltage and package type for your specific design constraints.

Supervisors Selection Notes

Select this component when a combined supervisory circuit and non-volatile memory solution is required for microcontroller systems. It is suitable for designs needing hardware write protection and precise voltage monitoring without the complexity of a watchdog timer. Consider the SOIC-8 package size and operating temperature range during PCB layout and thermal analysis.

Supervisors Part Context

This part belongs to the CAT1162 series of supervisory circuits from onsemi, which are designed to provide complete memory and supervisory solutions for microcontroller-based systems. The series typically includes variants with different threshold voltages and package options, integrating EEPROM memory with reset controllers to simplify system design and enhance reliability.

Supervisors Replacement Considerations

Direct substitutes include other CAT1162 variants with matching threshold voltages and packages, such as CAT1162WI-28-T3 or CAT1162LI-25-G. Verify pin compatibility and electrical specifications before substitution.