How to reset the microcontroller by holding the button?

Question

Electronics

There is a functional clock button connected to the microcontroller. It is necessary to connect in parallel some microcircuit that, by holding the button, will hardware pull the reset leg of the microcontroller, and when the MK button is pressed, it will simply process the functions. Tell me what kind of microchip it can be?
UPD: a hardware and software reset is not suitable, you need a hardware reset. An additional chip is not required, other options are possible. Using an analog circuit with a transistor is an interesting option, but as they wrote below, "an attempt to rely on the parameters of a single transistor is a direct path to a rake."

Answer 1

need 1 inverter + several passive components

purple - pressing
the c3-r4-r5 button sets the response time. denominations can be proportionally changed for almost any combination of "resistance-capacitance". with the given denominations is implemented in smd up to 0402

Answer 2

I did not understand the question.
Why do you need an extra chip? Change the firmware so that when you press the button, a reset occurs. Add another reset button. Well, if you want perversions, then you can pile something on the 555 timer