1.665V threshold supervisor in 8-TDFN
The MAX16056ATA17+T is a Simple Reset/Power-On Reset supervisor from Analog Devices, monitoring a single supply rail with a 1.665V threshold and asserting an active-low reset output via a push-pull stage. The reset timeout is adjustable or selectable via external components, giving the designer control over the power-up sequencing delay rather than being locked to a fixed internal timer.
Threshold voltage and reset behaviour
The 1.665V threshold suits low-voltage core rails (1.8V nominal) common in MCUs, FPGAs, and SoCs — the supervisor holds the reset line low until the monitored supply rises above the threshold plus hysteresis, then releases after the programmed timeout. Active-low push-pull output means the reset pin is driven high or low without requiring an external pull-up resistor, simplifying the interface to the processor's reset input. Single-channel monitoring keeps the pin count and board area minimal; for multi-rail systems, multiple MAX16056 devices or a multi-channel supervisor would be needed.