X4045P

Supervisors Overview

The X4045P is a single-channel voltage supervisor IC manufactured by Renesas Electronics Corporation, designed for simple reset and power-on reset applications. It operates within a temperature range of 0°C to 70°C (TA) and utilizes an 8-DIP (0.300", 7.62mm) through-hole package. The device features an open-drain or open-collector output with a high-active reset signal. Key electrical parameters include a minimum reset timeout of 100ms and a monitored threshold voltage of 4.38V. The component is classified as obsolete and does not comply with RoHS standards.

Supervisors Feature Summary

• Provides low VCC detection and automatic reset assertion when supply voltage drops below the specified threshold.
• Includes a selectable watchdog timer function to monitor system software integrity.
• Delivers a high-active reset signal via an open-drain or open-collector output interface.

Supervisors Applications

• Microcontroller system supervision
• Power-on reset generation
• Watchdog timer implementation in embedded systems

Supervisors Procurement Notes

Verify component obsolescence status prior to integration, as this part is officially discontinued. Confirm RoHS non-compliance requirements against target market regulations. Validate that the 8-DIP package dimensions align with existing PCB footprints. Ensure the 4.38V threshold meets circuit design specifications. Check for available legacy stock from authorized distributors.

Supervisors Selection Notes

Select this component for designs requiring a fixed 4.38V monitoring threshold and through-hole mounting. Consider the 100ms minimum reset timeout duration for stability requirements. Evaluate the open-drain output compatibility with downstream logic levels. Assess the 0°C to 70°C operating range against environmental conditions. Review the obsolete status for long-term supply chain risks.

Supervisors Part Context

The X4045P belongs to the X4045 series of voltage supervisors from Renesas Electronics. This family provides essential protection for digital circuits by monitoring supply voltage levels. The series typically offers multiple threshold options and integrates watchdog functionality. The X4045P specifically targets applications needing reliable power management in standard DIP packages.

Supervisors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, direct pin-to-pin replacements should be verified against current Renesas portfolios or equivalent third-party supervisors with matching 4.38V thresholds and 8-DIP packaging.