Can shift registers receive input?

Other Hardware General Electronics
1

Hello!

I want to use an ATtiny85 for a project, due to its low power consumption and space efficiency. However, the number of digital pins it has is too low. I also have a 74HC595 shift register. Is it possible to use the pins of the 74HC595 as inputs instead of outputs by using the shiftIn() function? Or will I need a different strategy?

Thanks in advance!

2

if you want to use a shift register you will have to find one that takes parallel data and shifts it out serially (exactly the opposite of the 595) like a 74HC597

though an attiny84 is the same size as the shift register and gives you 11 i/o 's

3

dkl65:
I want to use an ATtiny85 for a project, due to its low power consumption and space efficiency. However, the number of digital pins it has is too low. I also have a 74HC595 shift register.

Doesn't a 74HC595 cancel out the low power consumption and space efficiency?

4

cd4021be, i bought 5 of them ages ago, and i meant to use them for a similar project (been busy with other stuff)