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“LED Cube running on Arduino Nano and flip-flops. Preparation: test all 512 LEDs (and additional 50 spare ones if some get damaged while soldering) to find all the malfunctioning ones. Let them run for at least 4 hours. make symmetrical …
Content for 74HCT157
The 74HC157; 74HCT157 is a quad 2-input multiplexer. The device features select (S) and enable E inputs. A HIGH on S selects data source 1, a LOW data source 0. A HIGH on E forces all the outputs (1Y to 4Y) LOW. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.