The MAX6814XK is a watchdog circuit supervisor IC from Analog Devices / Maxim Integrated. It operates at 2.19V and features an active low reset with a minimum timeout of 1.12s.
The MAX6814XK+T is a low-power watchdog timer circuit from Analog Devices / Maxim Integrated, designed to improve system reliability. It features a 1.6s timeout and operates with a low 4µA current.