CAT1162W-42

Supervisors Overview

The CAT1162W-42 is a voltage supervisory circuit manufactured by onsemi, designed for CPU monitoring applications. It integrates a precision reset generator with an I2C serial CMOS EEPROM. The device operates within a supply voltage range of 2.7 V to 6 V and features a fixed threshold voltage of 4.2 V. It provides manual reset capability and includes a watchdog timer function. The component supports active high, active low, and open drain output types. It is housed in an SOIC-8 package and operates across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates a precision voltage supervisor with an I2C serial EEPROM for system data storage
• Provides configurable reset outputs including active high, active low, and open drain options
• Includes a manual reset input for user-initiated system control
• Features a built-in watchdog timer to monitor system software integrity

Supervisors Applications

• CPU power supply monitoring in embedded systems
• Data retention circuits requiring non-volatile memory integration
• Industrial control systems requiring robust reset management
• Consumer electronics with strict power supervision requirements

Supervisors Procurement Notes

Verify the exact suffix (e.g., GT3) against the manufacturer's current datasheet to confirm packaging and tape-and-reel specifications. Confirm RoHS compliance status through official documentation. Check for end-of-life notifications or obsolescence warnings from onsemi before procurement planning. Ensure the selected variant matches the required output configuration and EEPROM capacity.

Supervisors Selection Notes

Select this component when both voltage supervision and integrated non-volatile memory are required in a single package. Compare the 4.2 V threshold against the target system's nominal voltage to ensure proper reset timing. Evaluate the I2C interface compatibility with the host microcontroller. Consider the SOIC-8 package size constraints relative to the PCB layout.

Supervisors Part Context

This part belongs to the CAT116x series of supervisory circuits that combine reset functionality with EEPROM storage. It differs from variants like the CAT1163 which may have different EEPROM capacities or additional features. The 'W' indicates the SOIC package, while the '42' specifies the 4.2 V threshold voltage. It serves as a compact solution for systems needing both power monitoring and persistent data storage.

Supervisors Replacement Considerations

CAT1162WI-42-GT3: Confirmed substitute with identical electrical characteristics and pinout. Verify package marking and suffix details for accurate identification.