5/30/2023 0 Comments 74151 multiplexer datasheetTo switch between the 8 different multiplexed pins on the chip, there is a simple truth table of values employed, using S0,S1 and S2 as bits essentially. Output Note - Check the datasheet for your chip, as these often only allow small current draw, which can be easily stepped up to higher output powers using transistors, relays, or a Line Driver IC. ![]() These ICs are similar to shift registers in their benefits, but without the need to pulse all of the data to the register in this case. You could also have 8 different switches as Inputs, which are all interfaced to a single input. ![]() you could have 8 LEDs as Outputs, all controlled from a single output. What Is It?Ī Multiplexer IC allows you to interface a number of pins, with a single pin, by using a set of state pins to determine which ones are connected.Į.g. As your Arduino projects grow, you often find you need to wire in additional circuits and chips to extend the functionality of your board.
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