MAX6468XS26D1+

Overview

The MAX6468XS26D1+ is a microprocessor supervisory reset circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors single power-supply voltages ranging from +1.8V to +5.0V and asserts a reset signal if the supply voltage drops below its preset threshold of 2.63V. The device features an edge-triggered, one-shot manual reset function that ensures the microprocessor enters reset mode for a fixed timeout period only, even during continuously asserted manual resets. It operates within a temperature range of -40°C to +125°C and consumes low supply current.

Feature Summary

• Edge-triggered, one-shot manual reset function prevents indefinite reset states
• Monitors single power-supply voltages from +1.8V to +5.0V
• Factory-trimmed threshold voltage options ensure accuracy

Applications

• Microprocessor (µP) supervisory circuits
• Power supply monitoring systems
• Embedded system reset management

Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels. Confirm RoHS compliance status and lead-free specifications against current datasheet revisions. Check for obsolescence notices or lifecycle changes as this series may have limited availability. Ensure packaging details match design requirements.

Selection Notes

Select based on required threshold voltage accuracy and operating temperature range. Consider package type compatibility with PCB layout constraints. Evaluate supply current consumption against system power budgets. Verify manual reset functionality requirements against application logic needs.

Part Context

Part of the MAX6467/MAX6468 family of microprocessor supervisory circuits designed for reliable system reset management. These devices improve system reliability compared to traditional manual reset circuits by providing controlled reset timeouts.

Replacement Considerations

MAX6468US26D1+ offers similar functionality in SOT-143 package. MAX6389XS26D1+ provides adjustable threshold option in SC-70 package. Verify pinout compatibility and electrical specifications before substitution.