MAX6347XR33-T

Overview

The MAX6347XR33-T is a microprocessor supervisory circuit from the MAX6347 series, manufactured by Analog Devices Inc./Maxim Integrated. It monitors power supply voltages and asserts an active-high reset signal when VCC declines below a preset threshold of 3.3V. The device features a push-pull output and guarantees correct state down to 1V. It includes a minimum power-on reset pulse width of 100ms and operates within a temperature range of -40°C to +85°C. Packaged in SC-70-3, it offers ultra-low supply current for portable applications.

Feature Summary

• Provides active-high push-pull reset output for reliable system initialization
• Monitors single voltage input with factory-trimmed precision thresholds
• Ensures stable operation with guaranteed correct state down to 1V supply
• Features minimal footprint in space-saving SC-70 package

Applications

• Microprocessor and digital system power supply monitoring
• Portable equipment requiring ultra-low power consumption
• Circuits powered by 2.5V, 3V, 3.3V, or 5V rails

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and specific lot traceability requirements before integration. Check for obsolescence notices as availability may be limited. Ensure storage conditions adhere to moisture sensitivity level specifications to maintain reliability during assembly processes.

Selection Notes

Select this part when an active-high reset signal is required rather than open-drain or active-low configurations. The fixed 3.3V threshold suits systems operating at standard logic levels. Consider the push-pull output capability for driving loads directly without external pull-up resistors. Evaluate the 100ms minimum reset pulse against system startup timing requirements.

Part Context

Part of the MAX6347 family of microprocessor supervisory circuits designed for cost-effective reliability. Complements other variants like MAX6348 (open-drain) and MAX6346 (active-low push-pull). Shares common features such as low supply current and wide operating temperature range while differing primarily in output polarity and type.

Replacement Considerations

MAX6347XR37-T: Same series with different threshold voltage. MAX6348XR33+T: Open-drain output variant instead of push-pull. MAX6346XR33+T: Active-low output variant.