{"product_id":"74hc139d-dual-2-to-4-decoder-multiplexer-soic-16-ic-10pcs","title":"10PCS 74HC139D Dual 2-to-4 Decoder Multiplexer IC SOIC-16","description":"\u003ch2\u003e74HC139D Dual 2-to-4 Line Decoder \/ Multiplexer – 10-Pack (SOIC-16)\u003c\/h2\u003e\n\u003cp\u003eGet reliable signal routing and decoding performance with this 10-piece set of \u003cstrong\u003e74HC139D integrated circuits\u003c\/strong\u003e. Each chip is a high-speed CMOS \u003cstrong\u003eDual 2-to-4 Line Decoder\/Demultiplexer\u003c\/strong\u003e housed in a compact \u003cstrong\u003eSOIC-16 surface-mount package\u003c\/strong\u003e — an essential building block for digital logic design, embedded systems, and PCB projects.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Dual independent 2-to-4 line decoder \/ demultiplexer with active-LOW outputs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e SOIC-16 (Small Outline Integrated Circuit, 16-pin) — ideal for SMD\/SMT PCB assembly\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLogic Family:\u003c\/strong\u003e 74HC (High-Speed CMOS) — wide supply voltage range (2V–6V)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e Active-LOW, totem-pole outputs for easy interfacing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnable Input:\u003c\/strong\u003e Active-LOW enable per decoder section for flexible bus control\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpeed:\u003c\/strong\u003e High-speed propagation for demanding digital logic applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand new, factory-fresh components\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 10 pieces per order — great value for prototyping and production runs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAddress decoding in microcontroller and microprocessor systems\u003c\/li\u003e\n  \u003cli\u003eDemultiplexing data lines on custom PCBs\u003c\/li\u003e\n  \u003cli\u003eMemory chip select logic\u003c\/li\u003e\n  \u003cli\u003eDigital signal routing and bus expansion\u003c\/li\u003e\n  \u003cli\u003eHobby electronics, Arduino\/Raspberry Pi projects, and DIY logic boards\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e74HC139D\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSOIC-16\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLogic Family\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e74HC (High-Speed CMOS)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2V – 6V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eActive-LOW Totem-Pole\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 PCS\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eRelated Products You May Find Useful\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What does the 74HC139D integrated circuit do?\u003c\/h4\u003e\n\u003cp\u003eA: The 74HC139D is a Dual 2-to-4 Line Decoder\/Demultiplexer IC. It takes a 2-bit binary input and activates one of four active-LOW outputs accordingly. With two independent decoder sections on a single SOIC-16 chip, it is widely used for address decoding, memory chip select, and data demultiplexing in digital logic and embedded systems.\u003c\/p\u003e\n\u003ch4\u003eQ: What package type is the 74HC139D and is it suitable for PCB assembly?\u003c\/h4\u003e\n\u003cp\u003eA: Yes — the 74HC139D comes in a SOIC-16 (Small Outline Integrated Circuit, 16-pin) surface-mount package, making it fully compatible with standard SMD\/SMT PCB assembly processes and pick-and-place equipment.\u003c\/p\u003e\n\u003ch4\u003eQ: How many chips are included in this listing?\u003c\/h4\u003e\n\u003cp\u003eA: This listing includes \u003cstrong\u003e10 pieces (10 PCS)\u003c\/strong\u003e of the 74HC139D IC, all brand new and factory-fresh — perfect for prototyping, production boards, or keeping a stock of spares for your digital electronics projects.\u003c\/p\u003e\n\u003ch4\u003eQ: What voltage range does the 74HC139D support?\u003c\/h4\u003e\n\u003cp\u003eA: The 74HC139D operates over a wide supply voltage range of \u003cstrong\u003e2V to 6V\u003c\/strong\u003e, making it compatible with both 3.3V and 5V logic systems commonly used in microcontrollers, FPGAs, and other digital platforms.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What does the 74HC139D integrated circuit do?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The 74HC139D is a Dual 2-to-4 Line Decoder\/Demultiplexer IC. 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