Simple reset supervisor for a single 2.63 V rail
The STM6825RWY6F is a STMicroelectronics simple reset/power-on reset supervisor that monitors a single supply rail at a 2.63 V threshold and asserts a reset output for a minimum of 140 ms after the rail rises above that level. The output is push-pull, totem pole, and is available as both active-high and active-low — so it can drive the reset input of most microcontrollers, DSPs, or FPGAs regardless of polarity. The SOT-23-5 package and surface-mount footprint fit into space-constrained boards where a discrete RC reset circuit would be less precise.
The 2.63 V threshold monitors a nominal rail, catching brown-out conditions before the logic becomes indeterminate.