4014e multiplexing?

Other Hardware General Electronics
1

I'm trying to add more ports to the arduino, but I only have these chips

MMC 4014E - 8903
MMC 4014E - 6753
4014BPC 8044 INDONESIA

Are any of these compatible with the ShiftIn examples ?

2

The 4014 is a CMOS shift register. From the pictures I found it appears to be a Parallel In shift register so you, in theory, can use it for shiftIn().

3

4000 series CMOS are quite slow, don't try clocking it faster than 6MHz (which in practice means don't use hardware
SPI at full speed.

Fortunately shiftIn uses digitalWrite() to handle the clocking which is plenty slow enough.