2 ms·
74595s are incredibly useful, compatible with SPI interfaces, and completely forgotten by today's engineers. I have a current project where I needed to drive a
by joezydeco 4y ago
74595s are incredibly useful, compatible with SPI interfaces, and completely forgotten by today's engineers.
I have a current project where I needed to drive a large number of CS lines on a SPI bus. Others suggested I/O expanders and even - good lord - an entire M0 controller to handle it. I solved it with a bitbanged chain of 74HC595s, under $1 in BOM cost.