Yes, there is an internal oscillator whose base frequency is 4kHz for all the timing activities in the part. This oscillator is not accessible externally in normal operation.
MAX16125
Production
The MAX16122–MAX16125 pushbutton controllers with single-supply monitors monitor one or two pushbuttons and generate a hard reset signal if the buttons...
Datasheet
MAX16125 on Analog.com
Yes, there is an internal oscillator whose base frequency is 4kHz for all the timing activities in the part. This oscillator is not accessible externally in normal operation.