MAX6467US44D3+

Overview

The MAX6467US44D3+ is a microprocessor supervisory reset circuit manufactured by Analog Devices Inc. (Maxim Integrated). It monitors a single power-supply voltage ranging from +1.8V to +5.0V and asserts a reset signal if the supply drops below its preset threshold of 4.4V. The device features an edge-triggered, one-shot manual reset function that ensures the processor enters reset mode for a fixed timeout period, even during continuous manual reset assertion. It operates within a temperature range of -40°C to +125°C and utilizes a SOT-143-4 package.

Feature Summary

• Edge-triggered, one-shot manual reset function prevents indefinite reset states
• Monitors single power-supply voltages from +1.8V to +5.0V
• Asserts reset when supply voltage falls below preset threshold

Applications

• Microprocessor system supervision
• Power supply monitoring in embedded systems
• Manual reset circuit implementation

Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels. Confirm RoHS compliance status and lead times directly with suppliers. Check for obsolescence notices as this series may have limited availability. Ensure packaging matches specifications for surface-mount assembly.

Selection Notes

Select this component for applications requiring reliable single-channel voltage supervision with manual reset capability. Consider the fixed 4.4V threshold and SOT-143-4 package constraints. Evaluate thermal performance within the specified operating temperature range. Compare against alternatives if adjustable thresholds or watchdog timers are required.

Part Context

Part of the MAX6467/MAX6468 family of microprocessor supervisory circuits designed to improve system reliability compared to traditional manual reset circuits. These devices offer factory-trimmed threshold options and low quiescent current consumption suitable for battery-powered applications.

Replacement Considerations

MAX6467US44D3+T is a tape-and-reel variant of the same electrical specification. Verify pinout compatibility and threshold voltage accuracy when substituting with other MAX6467 variants.