MAX6467XS16D7+

Overview

The MAX6467XS16D7+ is a microprocessor supervisory reset circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. 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 1.625V. The device features an edge-triggered, one-shot manual reset function that ensures the microprocessor enters reset mode for a fixed timeout period, even during continuously asserted manual resets. It operates with a maximum supply voltage of 5.5V and has a quiescent current of 7µA. The reset delay time is specified at 1.8 seconds. The component is housed in an SC-70-4 package and supports an operating temperature range from -40°C to +125°C.

Feature Summary

• Edge-triggered, one-shot manual reset function prevents indefinite reset states
• Monitors single power-supply voltages within the 1.8V to 5.0V range
• Active-low open-drain output for system reliability improvement

Applications

• Microprocessor (µP) supervisory circuits
• Voltage monitoring for portable electronic devices
• Battery-powered systems requiring low quiescent current

Procurement Notes

Verify the specific threshold voltage suffix (e.g., '16' indicating 1.625V) against the official datasheet to ensure compatibility with the target power rail. Confirm the SC-70-4 package dimensions match the PCB footprint requirements. Check for RoHS compliance status as indicated in the manufacturer's documentation. Ensure the operating temperature range meets the environmental conditions of the final application.

Selection Notes

Select this component when a fixed threshold supervisor is required for voltages near 1.6V. The SC-70-4 package offers a compact solution for space-constrained designs. Consider the 1.8-second reset delay time to ensure adequate stabilization for the monitored circuit. Verify that the active-low open-drain output configuration aligns with the input requirements of the downstream logic or microprocessor.

Part Context

The MAX6467 series consists of microprocessor supervisory circuits designed to enhance system reliability. These devices monitor power supplies and provide reset signals to prevent erratic behavior due to brown-out conditions. The MAX6467 variant specifically includes a manual reset input with edge-triggered functionality, distinguishing it from standard supervisors by limiting the reset duration to a fixed timeout period regardless of the manual input state.

Replacement Considerations

Cross-reference with other MAX6467 variants having different threshold voltages (e.g., MAX6467XSxxD7+) if the supply voltage differs. Verify pinout compatibility with alternative SC-70-4 supervisors from Analog Devices or other manufacturers.