74HCT595 shift register should actually be capable of at least 50MHz. The 74HC595 can do 100MHz. To speed up output, consider using the Arduino's hardware SPI pins. This can achieve speeds up to f/2, or 8MHz.
74HCT595 shift register should actually be capable of at least 50MHz. The 74HC595 can do 100MHz. To speed up output, consider using the Arduino's hardware SPI pins. This can achieve speeds up to f/2, or 8MHz.