The MAX814LCPA: This part is RoHS non-compliant, so verify your assembly process and regulatory requirements before specifying it into a new BOM.
The 4.7V threshold means this supervisor asserts reset when the monitored supply rail drops below 4.7V — a common trip point for 5V logic systems where the regulator tolerance and noise margin demand a reset before the rail falls out of spec for the downstream devices. The 140ms minimum reset timeout holds the processor in reset long enough for the supply to stabilise after a brownout or power-up transient, preventing the CPU from attempting to execute code before the oscillator and PLL have locked. Active-high and active-low push-pull outputs let the MAX814LCPA drive both reset inputs and enable signals without external pull-up resistors — the push-pull stage sources or sinks the reset current directly.
8-PDIP through-hole — board-fit and rework
Housed in an 8-pin PDIP (0.300-inch body width, 7.62mm row spacing), the through-hole package is a hand-solder-friendly footprint that survives multiple rework cycles under a hot-air station without lifting pads. Monitors a single voltage rail, so a multi-rail system needs one MAX814LCPA per supervised supply or a multi-voltage supervisor part.