{"product_id":"74hc4051-8ch-analog-multiplexer-demultiplexer-ic-dip16-5pcs","title":"74HC4051 8-Channel Analog Multiplexer \/ Demultiplexer IC DIP-16 – Pack of 5","description":"\u003ch2\u003e74HC4051 8-Channel Analog Multiplexer \/ Demultiplexer IC — DIP-16 (5-Pack)\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003e74HC4051\u003c\/strong\u003e is a single 8-channel analog multiplexer\/demultiplexer in a \u003cstrong\u003eDIP-16\u003c\/strong\u003e through-hole package. Three binary select inputs (S0–S2) connect one of \u003cstrong\u003e8 analog channels\u003c\/strong\u003e to a common I\/O pin, enabling a single ADC input to read 8 different analog sensors — or a single DAC output to drive 8 different loads. Bidirectional signal flow supports both MUX and DEMUX operation.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e74HC4051 \/ 74HC4051N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eDIP-16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e8 (single 8:1 MUX)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSelect Inputs\u003c\/td\u003e\n\u003ctd\u003e3 (S0, S1, S2 — binary encoded)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage (VCC)\u003c\/td\u003e\n\u003ctd\u003e2V – 6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Voltage Range\u003c\/td\u003e\n\u003ctd\u003eGND – VCC (analog)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-Resistance (RON)\u003c\/td\u003e\n\u003ctd\u003e~70Ω @ VCC=4.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBandwidth (−3dB)\u003c\/td\u003e\n\u003ctd\u003e~100MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnable Input\u003c\/td\u003e\n\u003ctd\u003eActive-low (Ē)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e5 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eChannel Selection Truth Table\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eS2\u003c\/th\u003e\n\u003cth\u003eS1\u003c\/th\u003e\n\u003cth\u003eS0\u003c\/th\u003e\n\u003cth\u003eChannel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003ctd\u003eY0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eY1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003ctd\u003eY2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eY3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003ctd\u003eY4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eY5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003ctd\u003eY6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eY7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose 74HC4051?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 Analog Channels, 3 Control Pins\u003c\/strong\u003e — Expand Arduino’s 6 analog inputs to 48 with just 3 GPIO pins\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBidirectional\u003c\/strong\u003e — Works as MUX (8-to-1) or DEMUX (1-to-8) for signal routing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow RON\u003c\/strong\u003e — ~70Ω on-resistance suitable for most sensor and audio signal routing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Supply Range\u003c\/strong\u003e — 2V–6V covers 3.3V and 5V systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnable Pin\u003c\/strong\u003e — Active-low Ē pin disconnects all channels for power saving or bus sharing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eArduino ADC expansion (read 8 analog sensors with 1 analog pin + 3 digital pins)\u003c\/li\u003e\n\u003cli\u003eAudio signal routing and switching matrix\u003c\/li\u003e\n\u003cli\u003eSensor array multiplexing (temperature, pressure, light)\u003c\/li\u003e\n\u003cli\u003eDAC output distribution to multiple loads\u003c\/li\u003e\n\u003cli\u003eAnalog signal selector for test equipment\u003c\/li\u003e\n\u003cli\u003eBattery cell voltage monitoring (8-cell pack with one ADC)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eArduino Example\u003c\/h3\u003e\u003cp\u003eSet S0–S2 via digitalWrite() to select channel, then read with analogRead(A0):\u003cbr\u003e\u003ccode\u003edigitalWrite(S0, channel \u0026amp; 1);\u003c\/code\u003e\u003cbr\u003e\u003ccode\u003edigitalWrite(S1, (channel \u0026gt;\u0026gt; 1) \u0026amp; 1);\u003c\/code\u003e\u003cbr\u003e\u003ccode\u003edigitalWrite(S2, (channel \u0026gt;\u0026gt; 2) \u0026amp; 1);\u003c\/code\u003e\u003cbr\u003e\u003ccode\u003eint val = analogRead(A0);\u003c\/code\u003e\u003c\/p\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: Can 74HC4051 switch signals above VCC?\u003c\/strong\u003e\u003cbr\u003eA: No — analog signal must stay within GND to VCC range. For signals outside this range, use a separate VEE supply or choose a different MUX IC.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What’s the difference between 74HC4051 and 74HC4067?\u003c\/strong\u003e\u003cbr\u003eA: 74HC4051 is 8-channel (3 select pins); 74HC4067 is 16-channel (4 select pins). Both are single-pole MUX\/DEMUX ICs.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e5× 74HC4051 DIP-16 8-Channel Analog Multiplexer IC\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991487992043,"sku":"\u003cnone\u003e","price":12.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/74hc4051-dip16-mux-demux.webp?v=1761536595","url":"https:\/\/keszoox.com\/products\/74hc4051-8ch-analog-multiplexer-demultiplexer-ic-dip16-5pcs","provider":"Keszoox","version":"1.0","type":"link"}