MAX6335US23D3+

Overview

The MAX6335US23D3+T is a microprocessor supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors power supplies in 1.8V to 3.3V systems, asserting an active-high reset signal when VCC drops below the 2.3V threshold or upon manual reset assertion. The device features a debounced manual-reset input and operates within a temperature range of -40°C to +125°C. It utilizes a SOT-143-4 surface-mount package and includes a minimum reset timeout period of 150ms.

Feature Summary

• Provides active-high reset output for reliable system initialization
• Includes a debounced manual-reset input for user intervention
• Monitors supply voltage with factory-trimmed precision thresholds
• Operates at ultra-low supply voltages down to 0.7V

Applications

• Microprocessor (µP) power supply monitoring
• Digital system voltage supervision
• Battery-powered device reset circuits

Procurement Notes

Verify the specific suffix D3+ against official Analog Devices documentation to confirm the active-high output configuration, as suffix variations define electrical characteristics. Confirm RoHS compliance status and check current lifecycle status, as Maxim Integrated products may have limited availability or obsolescence notices. Ensure the SOT-143-4 package matches your PCB footprint requirements before ordering.

Selection Notes

Select this component when an active-high reset signal is required for the target logic family. Compare the 2.3V threshold against the system's nominal voltage to ensure proper triggering during brown-out events. Consider the 150ms minimum timeout duration relative to the microprocessor's startup time requirements. Verify that the low quiescent current meets battery life constraints if applicable.

Part Context

This part belongs to the MAX6335/MAX6336/MAX6337 family of ultra-low-voltage, low-power µP reset circuits. These devices are designed to increase circuit reliability and reduce cost by eliminating external components. The family differentiates primarily by output type: MAX6335 offers active-high push/pull, MAX6336 active-low push/pull, and MAX6337 active-low open-drain outputs.

Replacement Considerations

Direct substitutes include MAX6335US23D2+T (active-high, similar specs) and MAX6336US23D3+T (active-low, requires logic inversion). Cross-reference with MAX6337US23D3+T for open-drain applications. Verify pinout compatibility and threshold accuracy before substitution.