Dual-rail supervisor for multi-voltage sequencing
The STM6717SVWY6F is a multi-voltage supervisor from STMicroelectronics that monitors two independent supply rails and asserts a common active-low reset when either voltage falls below its threshold. The reset output is open drain, allowing multiple supervisors to share a common pull-up resistor on a wired-OR reset bus — a common topology in multi-rail systems where any one rail fault must force a system reset.
Reset timing and temperature range
A minimum reset timeout of 140 ms holds the output low after all monitored voltages rise above their thresholds, giving downstream rails and oscillators time to stabilize before the processor starts executing code. Housed in a 5-pin SOT-23-5 (SC-74A) package, the footprint is compact enough for space-constrained designs like sensor nodes and portable instruments while still being hand-solderable for prototype rework.