CAT1320LI-42-G

Supervisors Overview

The CAT1320LI-42-G is a voltage supervisory circuit manufactured by onsemi, designed for CPU monitoring applications. It features a single monitored input with a manual reset capability and lacks a watchdog timer. The device operates within a supply voltage range up to 5.5 V and has a threshold voltage of 4.2 V. It is housed in an 8-pin PDIP package and supports through-hole mounting. The component functions reliably across an operating temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Provides voltage supervision for CPU systems with manual reset functionality
• Features a fixed 4.2 V threshold voltage for power monitoring
• Designed for through-hole installation in standard PDIP-8 packages

Supervisors Applications

• CPU power supply monitoring
• Voltage supervision in embedded systems
• Manual reset control circuits

Supervisors Procurement Notes

Verify current availability status as the part may be discontinued or subject to specific ordering requirements. Confirm package type and threshold voltage match design specifications. Check RoHS compliance details before integration. Ensure manual reset pin configuration aligns with system logic. Validate operating temperature range against environmental conditions.

Supervisors Selection Notes

Select this component when a fixed 4.2 V threshold is required for CPU supervision. Consider the PDIP-8 package for through-hole assembly needs. Manual reset functionality is suitable for systems requiring user intervention. Absence of a watchdog timer simplifies design if external timing is not needed. Verify compatibility with 5.5 V maximum supply limits.

Supervisors Part Context

This part belongs to the CAT1320 series of supervisory circuits from onsemi. It shares functional similarities with other variants like the CAT1320WI-42-G but differs in packaging and mounting style. The LI suffix indicates a leaded PDIP package, distinguishing it from surface-mount options. It serves as a dedicated voltage monitor without integrated memory or complex timing features.

Supervisors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.