FM809TS3X

Supervisors Overview

The FM809TS3X is a single-channel microcontroller supervisor circuit manufactured by Fairchild Semiconductor. It monitors one voltage line with an activation threshold of 3.08V. The device features a push-pull, totem pole output format and provides an active low reset function. It includes a minimum reset timeout of 140ms to ensure stable system initialization. Packaged in a compact SOT-23 outline, it supports standard operating temperature ranges for electronic applications.

Supervisors Feature Summary

• Monitors a single power supply voltage line
• Provides active low reset signal via push-pull output
• Ensures system stability with defined reset timeout duration

Supervisors Applications

• Microcontroller power supply monitoring
• Embedded system reset generation
• Portable electronic device power management

Supervisors Procurement Notes

Verify the manufacturer origin, as Rochester Electronics also lists this part number. Confirm the package type matches the required SOT-23 footprint. Ensure the electrical specifications align with the target circuit design requirements before procurement.

Supervisors Selection Notes

Select this component when a single voltage monitor with an active low output is required. The 3.08V threshold suits specific logic level applications. Consider the SOT-23 package size for space-constrained designs requiring a dedicated supervisor function.

Supervisors Part Context

This component belongs to the FM809 series of 3-pin microcontroller supervisor circuits. It serves as a power supply support integrated circuit designed to manage system resets based on monitored voltage levels within electronic hardware architectures.

Supervisors Replacement Considerations

Cross-reference with other FM809 variants or equivalent single-channel supervisors from other manufacturers. Verify pin compatibility and threshold voltage alignment for direct substitution.