What is the Maximum I/O pins for AtMega 328 All Questions › Category: Embedded System › What is the Maximum I/O pins for AtMega 328 0 Vote Up Vote Down Jayesh Bornare asked 2 years ago OPTIONS 28 32 40 Both A and B 1 Answers 0 Vote Up Vote Down Jayesh Bornare answered 2 years ago Both A and B