M51957AFP#CF1J

Supervisors Overview

The M51957AFP#CF1J is a single-channel voltage detector and system reset IC manufactured by Renesas Electronics Corporation. It monitors one voltage supply to ensure proper logic circuit operation. The device provides an active low reset signal with a defined timeout period. It operates within a temperature range of -30°C to 85°C and is housed in an 8-SOP package.

Supervisors Feature Summary

• Monitors a single voltage supply for system integrity
• Generates active low reset signal upon threshold detection
• Includes reset timeout functionality for stable startup

Supervisors Applications

• CPU reset circuits
• Logic circuit resetting
• System supervision in embedded devices

Supervisors Procurement Notes

Verify the exact suffix CF1J matches the required SOP-8 package and thermal grade. Confirm RoHS compliance status as applicable for your region. Ensure the active low reset polarity aligns with your target microcontroller or logic interface requirements before finalizing orders.

Supervisors Selection Notes

Select this component when a single-supervisor channel is sufficient for system monitoring. Consider the -30°C to 85°C operating range against your environmental constraints. Verify that the active low reset output drives correctly into your downstream logic inputs without additional level shifting.

Supervisors Part Context

This part belongs to the M51957A/B series of semiconductor integrated circuits designed specifically for resetting various logic circuits, including CPUs. These devices are engineered to provide reliable system supervision by detecting voltage drops below specified thresholds, ensuring safe initialization and operation of digital systems.

Supervisors Replacement Considerations

Check for direct pin-compatible alternatives within the same Renesas M51957 family. Verify threshold voltages and reset timing characteristics match exactly. No other specific substitute part numbers are publicly confirmed for this exact configuration.