CAT1163WI-30-GT3

Supervisors Overview

The CAT1163WI-30-GT3 is a voltage supervisory circuit manufactured by onsemi, designed for CPU monitoring applications. It integrates a 16K EEPROM within an 8-pin SOIC-Wide package. The device monitors a single input with a threshold voltage of 3 V and an overvoltage threshold of 3.15 V. It operates within a supply voltage range of 2.7 V to 6 V and features a manual reset capability alongside a watchdog timer. The reset delay time is specified at 270 ms. The component supports active high, active low, and open drain output types. It functions reliably across an operating temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Integrates 16K EEPROM for data storage alongside supervisory functions
• Includes built-in watchdog timer for system reliability
• Supports multiple output configurations including active high, active low, and open drain

Supervisors Applications

• CPU supervisor circuits
• Voltage monitoring in embedded systems
• Power management ICs requiring manual reset

Supervisors Procurement Notes

Verify the exact suffix GT3 against official datasheets to confirm tape-and-reel packaging specifications. Confirm RoHS compliance status as documentation may vary by production batch. Check current lifecycle status as this part number may be discontinued or subject to limited availability constraints in certain regions.

Supervisors Selection Notes

Select this component when both voltage supervision and non-volatile memory storage are required in a single package. Ensure the 3 V threshold aligns with the monitored rail voltage. Verify that the SOIC-Wide-8 package fits the PCB layout constraints. Consider the 270 ms reset delay timing requirements relative to the target microcontroller startup sequence.

Supervisors Part Context

This part belongs to the CAT1163 series of supervisory circuits from onsemi. It is distinct from the CAT1162 series which lacks the integrated watchdog timer. The CAT1163 family provides combined power management and data retention capabilities, targeting applications where system state preservation during power events is critical.

Supervisors Replacement Considerations

Public confirmed substitute part numbers: CAT1163WI-30-T3, CAT1163WI-45-GT3.