CAT1320WI-42-GT3

Supervisors Overview

The CAT1320WI-42-GT3 is a voltage supervisory circuit manufactured by onsemi, designed for CPU monitoring applications. It operates within a supply voltage range of 3 V to 5.5 V and features a threshold voltage of 4.2 V. The device includes manual reset capability and lacks a watchdog timer. It monitors one input channel with an under-voltage threshold of 4.25 V and an over-voltage threshold of 4.5 V. Operating current is 3 mA, with power dissipation rated at 1 W. It functions between -40°C and +85°C and is housed in an SOIC-8 surface-mount package.

Supervisors Feature Summary

• Provides voltage supervision with manual reset functionality for system integrity
• Monitors single input channel for under-voltage and over-voltage conditions
• Operates within standard industrial temperature ranges

Supervisors Applications

• CPU power supply monitoring
• Voltage supervision in embedded systems
• Power-on reset generation

Supervisors Procurement Notes

Verify the specific suffix GT3 indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributors. Ensure the SOIC-8 package variant matches your PCB footprint requirements. Cross-reference the exact part number to distinguish from similar CAT1320 series devices with different thresholds or packages.

Supervisors Selection Notes

Select this component when a simple supervisor with manual reset is required without watchdog complexity. The 4.2 V threshold suits 5 V logic systems. Verify that the 3 mA operating current fits low-power design constraints. Ensure the SOIC-8 package is compatible with assembly processes. Check if the absence of a watchdog timer meets application safety standards.

Supervisors Part Context

This part belongs to the CAT1320 series of supervisory circuits from onsemi. The series offers various threshold voltages and package options. The WI suffix typically denotes industrial temperature range and SOIC-8 packaging. The GT3 suffix specifies reel packaging. This family targets cost-sensitive monitoring applications requiring basic voltage supervision.

Supervisors Replacement Considerations

Check CAT1320WI-45-GT3 for a 4.5 V threshold variant. Verify CAT1320ZD2I-42GT3 for I2C EEPROM integrated versions. Confirm pinout compatibility before substituting. Review datasheets for differences in reset timing or current consumption.