Hi Raymond,
As you mentioned " you should be able to replace LM566 with LM331". But according to our design if Vin increases, Frequency out should be decreases.
By the LM331 Formula,
I hope it is not possible. And also, according to our design…
Hi Andrew,
The LMC555 is the CMOS version and the LM555 is the bipolar version. They both come in PDIP packages, which are spaced for a breadboard, as well as surface mount if you choose to switch when you finalize your PCB. As far as the dual package…