{"product_id":"74hc244n-octal-buffer-line-driver-with-3-state-outputs-20-pin-dip-package","title":"74HC244N (Octal Buffer \/ Line Driver with 3-State Outputs - 20-Pin DIP Package)","description":"\u003cp data-path-to-node=\"5\"\u003eAs your digital projects grow in complexity, you will eventually encounter a situation where a single microcontroller pin needs to \"talk\" to several different chips at once, or drive a signal down a long, noisy ribbon cable. A standard GPIO pin often lacks the current capacity to do this reliably, leading to corrupted data. The \u003cb data-path-to-node=\"5\" data-index-in-node=\"330\"\u003e74HC244\u003c\/b\u003e is the industry-standard solution. It is an octal (8-channel) non-inverting buffer and line driver. It takes weak incoming digital signals and outputs identical, highly driven versions of those signals with enough \"muscle\" to power through capacitive loads and long wires.\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003eLike the quad-channel 74HC125, the true power of the 74HC244 lies in its \u003cb data-path-to-node=\"6\" data-index-in-node=\"73\"\u003e3-State (Tri-State) Outputs\u003c\/b\u003e. The eight buffers are split into two independent banks of four, each controlled by its own Active-LOW Output Enable (OE) pin. When the enable pin is pulled Low, the buffers actively drive data onto the bus. When pulled High, the buffers completely disconnect, entering a \"High-Impedance\" state. This allows multiple devices to share the exact same 8-bit data bus without short-circuiting each other, making this chip absolutely mandatory for building custom memory expansions and DIY CPUs.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003e\u003cb data-path-to-node=\"7\" data-index-in-node=\"0\"\u003eKey Features \u0026amp; Functional Advantages:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"8\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,0,0\"\u003e\u003cb data-path-to-node=\"8,0,0\" data-index-in-node=\"0\"\u003e8-Bit Wide Data Path:\u003c\/b\u003e Packs eight independent buffers into a single 20-pin package, perfectly sized to handle an entire byte of data simultaneously.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,1,0\"\u003e\u003cb data-path-to-node=\"8,1,0\" data-index-in-node=\"0\"\u003eDual 4-Bit Banks:\u003c\/b\u003e The eight channels are divided into two blocks of four. You can enable all 8 channels at once, or control the upper and lower \"nibbles\" independently using the two separate OE pins.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,2,0\"\u003e\u003cb data-path-to-node=\"8,2,0\" data-index-in-node=\"0\"\u003eTri-State Outputs:\u003c\/b\u003e Safely isolates your components by providing three distinct output states: High, Low, and High-Impedance (Disconnected).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,3,0\"\u003e\u003cb data-path-to-node=\"8,3,0\" data-index-in-node=\"0\"\u003eHigh-Speed CMOS (HC) Architecture:\u003c\/b\u003e Operates flawlessly across a 2.0V to 6.0V range, drawing virtually zero quiescent current while providing blistering fast signal propagation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,4,0\"\u003e\u003cb data-path-to-node=\"8,4,0\" data-index-in-node=\"0\"\u003eBreadboard Native (20-DIP):\u003c\/b\u003e Sized to fit perfectly across the center trench of a standard solderless breadboard, allowing for rapid integration into classic 8-bit logic projects.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"9\"\u003e\u003cb data-path-to-node=\"9\" data-index-in-node=\"0\"\u003ePerfect For:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"10\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,0,0\"\u003e\u003cb data-path-to-node=\"10,0,0\" data-index-in-node=\"0\"\u003eData Bus Buffering:\u003c\/b\u003e The absolute standard hardware for isolating a delicate CPU (like a Z80 or 6502) from the heavy electrical loads of a shared system data bus.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,1,0\"\u003e\u003cb data-path-to-node=\"10,1,0\" data-index-in-node=\"0\"\u003eSignal Boosting (Line Driving):\u003c\/b\u003e Excellent for revitalizing weak SPI or parallel data signals before sending them down long cables to distant LCD screens or sensor arrays.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,2,0\"\u003e\u003cb data-path-to-node=\"10,2,0\" data-index-in-node=\"0\"\u003eHomebrew 8-Bit Computers:\u003c\/b\u003e Frequently paired with 74HC374 or 74HC574 registers to control the flow of data moving in and out of the Arithmetic Logic Unit (ALU).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,3,0\"\u003e\u003cb data-path-to-node=\"10,3,0\" data-index-in-node=\"0\"\u003eInput Isolation:\u003c\/b\u003e A highly reliable way to physically buffer and protect a microcontroller's input pins from raw, external switches or noisy industrial sensors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"11\"\u003e\u003cb data-path-to-node=\"11\" data-index-in-node=\"0\"\u003eTechnical Specifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"12\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,0,0\"\u003e\u003cb data-path-to-node=\"12,0,0\" data-index-in-node=\"0\"\u003eLogic Family:\u003c\/b\u003e 74HC (High-Speed CMOS)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,1,0\"\u003e\u003cb data-path-to-node=\"12,1,0\" data-index-in-node=\"0\"\u003eLogic Function:\u003c\/b\u003e Octal Buffer \/ Line Driver (Non-Inverting)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,2,0\"\u003e\u003cb data-path-to-node=\"12,2,0\" data-index-in-node=\"0\"\u003eNumber of Buffers:\u003c\/b\u003e 8 (Octal)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,3,0\"\u003e\u003cb data-path-to-node=\"12,3,0\" data-index-in-node=\"0\"\u003eOutput Type:\u003c\/b\u003e 3-State (Tri-State \/ High-Impedance capable)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,4,0\"\u003e\u003cb data-path-to-node=\"12,4,0\" data-index-in-node=\"0\"\u003eOutput Enable Logic:\u003c\/b\u003e Active-LOW (Two independent enable pins controlling 4 buffers each)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,5,0\"\u003e\u003cb data-path-to-node=\"12,5,0\" data-index-in-node=\"0\"\u003eOperating Supply Voltage (Vcc):\u003c\/b\u003e 2.0V to 6.0V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,6,0\"\u003e\u003cb data-path-to-node=\"12,6,0\" data-index-in-node=\"0\"\u003eMaximum Output Current:\u003c\/b\u003e ~35 mA per pin\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,7,0\"\u003e\u003cb data-path-to-node=\"12,7,0\" data-index-in-node=\"0\"\u003ePackage \/ Case:\u003c\/b\u003e 20-DIP (0.300\", 7.62mm width)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,8,0\"\u003e\u003cb data-path-to-node=\"12,8,0\" data-index-in-node=\"0\"\u003eMounting Type:\u003c\/b\u003e Through-Hole (PTH)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K-TECHNICS","offers":[{"title":"Default Title","offer_id":42866154831943,"sku":null,"price":70.0,"currency_code":"KES","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/7637\/2039\/files\/74hc244n_114284_g.jpg?v=1781091754","url":"https:\/\/www.ktechnics.com\/products\/74hc244n-octal-buffer-line-driver-with-3-state-outputs-20-pin-dip-package","provider":"K-TECHNICS","version":"1.0","type":"link"}