nolansneeder
Member
Hello! I’m wanting to add an SD card slot into a PCB that I’m designing and I’m a little bit confused about what is required. Just for clarification, if I’m already operating on 3.3V I don’t need a level shifter right? I’ve also seen some people use EMI filter chips like these:
https://www.onsemi.com/products/iso...MImcfw5PHK7AIVAwiICR0LKg_BEAAYASAAEgJ07vD_BwE
Are they necessary? Or can I just hook up the SPI connections directly to my microcontroller? Thanks!
https://www.onsemi.com/products/iso...MImcfw5PHK7AIVAwiICR0LKg_BEAAYASAAEgJ07vD_BwE
Are they necessary? Or can I just hook up the SPI connections directly to my microcontroller? Thanks!