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by joezydeco
1433 days ago
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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. |
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