I tried a basic Arduino project involving pushing bits to a 74595 shift register. It works great. I then tried to connect another 74595, with its serial input coming from the first chip's serial output. Both running on the same clock input. The downstream chip doesn't function correctly, sometimes bits shift, sometimes not, sometimes things randomly clear. It is not a defective unit, because if I swap chips, it's still the downstream chip that has the issue.
The only thing I can think of is that one is HC and one is HCT. Is that supported?
Can you give me some pointers on what could be going wrong here?
The only thing I can think of is that one is HC and one is HCT. Is that supported?
Can you give me some pointers on what could be going wrong here?