I was looking at using this for a CNC build I have upcoming in which I will be using external nema 23 drivers. I'm not looking to design my own controller so I'm looking at making this board. I noticed the shift registers you are using are not up to date with the shift register currently recommended in the wiki. Additionally the 74ACT245 you used seems to be only in a 20 pin package and the 74AHCT595's I'm finding are all in 16 pin packages so they are not directly interchangeable. Will the 74ACT245's still work fine? Should I try to redesign the PCB to work with the 74AHCT595 chip?
I was looking at using this for a CNC build I have upcoming in which I will be using external nema 23 drivers. I'm not looking to design my own controller so I'm looking at making this board. I noticed the shift registers you are using are not up to date with the shift register currently recommended in the wiki. Additionally the 74ACT245 you used seems to be only in a 20 pin package and the 74AHCT595's I'm finding are all in 16 pin packages so they are not directly interchangeable. Will the 74ACT245's still work fine? Should I try to redesign the PCB to work with the 74AHCT595 chip?