STM6779VWB6F

Supervisors Overview

The STM6779VWB6F is a dual ultra-low voltage supervisor from STMicroelectronics, housed in an SOT-23-6 surface-mount package. It monitors two system power supply voltages with fixed factory-programmed reset thresholds of 1.575 V and an adjustable threshold. The device features an active low open-drain output and supports manual reset input with an optional delay function using an external capacitor. It operates within a supply voltage range up to 5.5 V, consumes 35 uA of supply current, and functions reliably across an industrial temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Dual-channel voltage supervision with one fixed and one adjustable threshold for flexible power monitoring
• Manual reset capability with an optional delay feature configurable via an external capacitor on the MRC pin
• Low quiescent supply current consumption optimized for battery-powered applications
• Guaranteed correct reset logic state when monitored supply voltages exceed 0.8 V

Supervisors Applications

• Portable battery-powered systems requiring efficient power management
• Set-top boxes (STBs) needing reliable multi-voltage supervision
• Networking and communication equipment utilizing low-voltage processors

Supervisors Procurement Notes

Verify the specific suffix 'V' indicates the adjustable threshold configuration against the official datasheet before procurement. Confirm that the SOT-23-6 package matches your PCB footprint requirements. Ensure the design accounts for the manual reset delay circuitry if the MRC pin functionality is utilized. Cross-reference the RoHS compliance status with current environmental regulations.

Supervisors Selection Notes

Select this component when dual voltage monitoring is required with one adjustable threshold level. Consider the 35 uA supply current for battery life calculations. Evaluate the need for the manual reset delay feature; if not needed, the MRC pin can be left open. Compare the fixed threshold options against other family members like STM6779YWB6F or LWB6F if different voltage levels are preferred.

Supervisors Part Context

This part belongs to the STM6777/78/79/80 family of low-voltage supervisors designed for microprocessors and DSPs. These devices provide essential protection by monitoring system power supplies and asserting a reset signal when voltages drop below specified thresholds. The family offers various threshold combinations and output types to suit diverse embedded system architectures.

Supervisors Replacement Considerations

MAX6721UTSVD3+T is a parameter-equivalent alternative available from Analog Devices Inc./Maxim Integrated.