MAX6468XS16D3+T

Overview

The MAX6468XS16D3+T is a microprocessor supervisory reset circuit manufactured by Analog Devices Inc. (Maxim Integrated). It monitors a single power-supply voltage and asserts an active-low, push-pull reset signal if the supply drops below its preset threshold of 1.575V. The device operates within a supply range of +1.8V to +5.0V with a maximum voltage of 5.5V. It features a fixed reset timeout period of 150ms minimum and consumes only 7µA of operating current. The component is housed in a SC-70-4L surface-mount package and supports manual reset functionality.

Feature Summary

• Edge-triggered, one-shot manual reset function prevents continuous reset assertion during prolonged manual input
• Factory-trimmed threshold voltage eliminates the need for external components
• Active-low, push-pull output ensures robust drive capability for microprocessor platforms

Applications

• Microprocessor system supervision
• Single power-supply monitoring
• Embedded controller reset generation

Procurement Notes

Verify the specific suffix D3+T against the official datasheet to confirm the 1.575V threshold and 150ms timeout parameters. Confirm RoHS compliance status as indicated by the plus sign. Check availability status as this part may be discontinued or subject to limited supply constraints depending on the distributor region.

Selection Notes

Select this component when a fixed low-voltage threshold near 1.6V is required for single-supply monitoring. The SC-70-4 package suits space-constrained designs. Ensure the 150ms timeout aligns with the target microprocessor's startup requirements. Verify that the active-low output logic matches the system design.

Part Context

This part belongs to the MAX6467/MAX6468 family of microprocessor supervisory circuits. The family offers various factory-trimmed thresholds ranging from 1.8V to 5.0V. The MAX6468 variant specifically includes manual reset capabilities, distinguishing it from the basic MAX6467 model which lacks this feature.

Replacement Considerations

Other MAX6468 variants with different threshold voltages (e.g., MAX6468XS20D3+T) are pin-compatible but have different trip points. Direct substitutes must match the 1.575V threshold specification.