SparkFun Multiplexer Breakout - 8 Channel (74HC4051)
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Select among eight analog signal paths with this 74HC4051 breakout. Three digital select lines choose the routed connection, and an enable signal controls the switching function. The board exposes the common signal, individual channels, control signals and supplies, supporting prototypes that share an input or output across several compatible devices.
Before you buy
Review signal-voltage limits, switch resistance and supply configuration for the connected circuits.
SparkFun SKU: BOB-13906 · Category: Signal multiplexers
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Official product specifications and documentation
EAR summary based on supplier documentation; this is not a hands-on review. Product identity rechecked during the October 25, 2026 sprint. Current SparkFun Originals eligibility was verified with the supplier’s Original: Yes filter during the October 25, 2026 sprint. Affiliate eligibility remains subject to SparkFun's program terms.