MAX6354TZUK-T

Overview

The MAX6354TZUK-T is a micropower voltage supervisor manufactured by Analog Devices Inc. (Maxim Integrated). It monitors a single supply voltage and provides a reset signal when the input drops below a threshold of 2.70V. The device features an active-low, push-pull output and includes a manual reset input for system control. It incorporates a watchdog timer with a fixed timeout period to detect software failures. The component operates within a supply range of 1.62V to 5.5V and maintains accuracy within ±1%. It is housed in a compact SOT-23-5 package suitable for surface-mount applications.

Feature Summary

• Integrates a watchdog timer with a fixed timeout period to monitor processor activity and prevent software lockups.
• Provides manual reset capability via a dedicated input pin, allowing external control over the reset state.
• Features an active-low, push-pull reset output driver for direct interfacing with digital logic circuits.

Applications

• Microprocessor and microcontroller power supply monitoring
• Watchdog timer implementation in embedded systems
• Battery-powered portable devices requiring low quiescent current

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging configuration. Confirm the 'Z' suffix denotes lead-free and RoHS compliance status as per manufacturer specifications. Ensure the 'UK' designation corresponds to the SOT-23-5 package variant. Cross-reference the full part number against official distributor catalogs to confirm availability and authenticity before procurement.

Selection Notes

Select this component when a fixed 2.70V threshold is required for system supervision. The integrated watchdog function eliminates the need for external timing components. The low operating current makes it suitable for battery-operated equipment. Verify that the active-low output polarity matches the target controller's reset input requirements.

Part Context

This part belongs to the MAX635x series of micropower supervisors. The series offers various threshold voltages and package options. The MAX6354 specifically defines the 2.70V threshold characteristic. The family is designed for cost-sensitive applications requiring reliable power management in small form factors.

Replacement Considerations

Check for MAX6354 variants with different thresholds or packages if electrical parameters do not match exactly. Verify functional compatibility regarding watchdog timeout periods and manual reset logic. Ensure pinout alignment for direct replacement without PCB modification.