Also, the 555 is an ancient chip, that pretty much appeared as the basic chip (along with it's friend, the 741 general purpose op-amp), being the two of them th

Also, the 555 is an ancient chip, that pretty much appeared as the basic chip (along with it's friend, the 741 general purpose op-amp), being the two of them the protagonists of pretty much 70% of the hobby circuits in the 80s.