MAX6333UR23D3+T

Overview

The MAX6333UR23D3+T is a microprocessor supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 1.8V to 5.5V and features a fixed reset threshold voltage of 2.3V. The device provides an active-low, push-pull RESET output with a typical timeout period of 100ms. Designed for surface-mount applications, it utilizes a compact SOT-23-3 package. The component supports an extended industrial temperature range from -40°C to +125°C and consumes a low quiescent current of 3.3µA.

Feature Summary

• Monitors power supply voltage and asserts reset when input falls below the preset threshold
• Provides active-low push-pull output suitable for direct logic interface
• Ensures reliable system startup through defined timeout delay after voltage recovery

Applications

• Microprocessor (µP) power supply monitoring in digital systems
• Battery-powered devices requiring ultra-low voltage supervision
• Embedded systems needing simple reset generation without manual intervention

Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels. Confirm RoHS compliance status and check for end-of-life notices, as availability may be restricted. Ensure storage conditions meet moisture sensitivity level requirements prior to assembly.

Selection Notes

Select this part when an active-low push-pull output is required rather than open-drain configurations found in similar series members. The 2.3V threshold suits specific low-voltage logic families. Verify package compatibility against PCB footprint constraints for SOT-23-3 mounting.

Part Context

This component belongs to the MAX6332/MAX6333/MAX6334 family of 3-pin, ultra-low-voltage, low-power µP reset circuits. While sharing identical electrical characteristics and functionality, differentiation within the family relies solely on output type: MAX6332 offers active-high push-pull, MAX6333 provides active-low push-pull, and MAX6334 features active-low open-drain outputs.

Replacement Considerations

MAX6333UR23D2+T serves as a potential substitute within the same series, offering identical functional parameters and output configuration.