What this reset IC does and where it fits
The Analog Devices MAX6464XR44+T is a simple reset/power-on reset IC that monitors a single supply rail and holds the reset output active low until the supply has been above the 4.4 V threshold for at least 150 ms. The push-pull output eliminates the need for an external pull-up resistor, which simplifies the BOM on space-constrained boards. This part is designed for systems that need a clean, glitch-free startup sequence — think MCU-based controllers, automotive ECUs, or industrial sensor nodes where the processor must not begin executing until the supply is stable. The -40°C to 125°C operating range covers under-hood automotive and factory-floor environments where temperature swings are routine.
Threshold and timeout — what they mean for your design
The 4.4 V threshold is the voltage at which the reset asserts. The 150 ms minimum reset timeout gives the power supply and oscillator time to settle.
Lifecycle and compliance — no obsolescence risk
It is ROHS3 compliant, so it meets the latest European hazardous-substance restrictions.
