{"product_id":"74hc259d-8-bit-addressable-latch-1-to-8-demultiplexer-ic-16-pin-soic-surface-mount-package","title":"74HC259D (8-Bit Addressable Latch \/ 1-to-8 Demultiplexer IC - 16-Pin SOIC Surface Mount Package)","description":"\u003cp data-path-to-node=\"5\"\u003eWhen you need to expand your microcontroller's outputs to drive multiple LEDs or relays, the standard choice is a 74HC595 shift register. However, shift registers have a major drawback: if you only want to turn off LED #7, you are forced to clock in the data for all eight LEDs all over again. The \u003cb data-index-in-node=\"298\" data-path-to-node=\"5\"\u003e74HC259D\u003c\/b\u003e takes a completely different, much faster approach. It is an 8-bit addressable latch. Instead of shifting data down a line, you simply use three binary address pins to target one specific output pin. You feed your 1 or 0 into the single Data input, pulse the Latch Enable (LE) pin, and the chip instantly updates \u003ci data-index-in-node=\"636\" data-path-to-node=\"5\"\u003eonly\u003c\/i\u003e that specific addressed pin, safely holding the previous states of all the other seven pins.\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003eThis specific \"D\" variant comes in a compact 16-pin SOIC surface-mount package, making it perfect for custom PCB designs where board space is at a premium. Built on standard High-Speed CMOS (HC) architecture, it acts as a highly versatile 4-in-1 tool depending on how you drive the Latch Enable and Clear pins: it can function as an addressable latch, a memory demultiplexer, a standard 1-to-8 decoder, or it can instantly wipe all outputs back to LOW.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"7\"\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-index-in-node=\"0\" data-path-to-node=\"8,0,0\"\u003eTargeted Pin Control:\u003c\/b\u003e Instantly address and change the state of a single output without disrupting the data held on the other seven pins, drastically reducing microcontroller processing overhead.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,1,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"8,1,0\"\u003e4-Mode Operation:\u003c\/b\u003e Functions as an addressable latch, a standard 1-to-8 line demultiplexer, a decoder, or a clearable memory bank based on your hardware wiring.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,2,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"8,2,0\"\u003eMaster Clear Pin:\u003c\/b\u003e Features a dedicated active-LOW Clear (\u003cspan data-index-in-node=\"57\" data-math=\"\\overline{CLR}\" class=\"math-inline\"\u003e$\\overline{CLR}$\u003c\/span\u003e) pin that instantly wipes all eight outputs to Ground, perfect for emergency-stop or reset logic.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,3,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"8,3,0\"\u003eHigh-Speed CMOS (HC) Architecture:\u003c\/b\u003e Delivers high-speed nanosecond data routing while operating seamlessly anywhere between 2.0V and 6.0V.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,4,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"8,4,0\"\u003eSurface Mount Design (SOIC-16):\u003c\/b\u003e The compact \"D\" package is designed for modern SMD manufacturing, significantly reducing the footprint on your custom printed circuit boards compared to bulky DIP chips.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"9\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"9\"\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-index-in-node=\"0\" data-path-to-node=\"10,0,0\"\u003eAdvanced Pin Expansion:\u003c\/b\u003e An incredibly efficient way to control massive banks of indicator LEDs or small relays where only one or two states change at a time.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,1,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"10,1,0\"\u003eCustom I\/O Routing:\u003c\/b\u003e The go-to hardware for routing a single serial data line or PWM signal to one of eight different hardware targets on the fly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,2,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"10,2,0\"\u003eSynthesizer \u0026amp; Audio Matrix Control:\u003c\/b\u003e Excellent for routing control voltages or trigger signals to specific channels in custom music synthesizers without dropping adjacent channels.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,3,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"10,3,0\"\u003eHigh-Speed Logic Demultiplexing:\u003c\/b\u003e Reconstructs parallel data from a serial stream faster than a shift register when paired with a binary counter.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"11\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"11\"\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-index-in-node=\"0\" data-path-to-node=\"12,0,0\"\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-index-in-node=\"0\" data-path-to-node=\"12,1,0\"\u003eLogic Function:\u003c\/b\u003e 8-Bit Addressable Latch \/ 1-to-8 Demultiplexer\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,2,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"12,2,0\"\u003eNumber of Outputs:\u003c\/b\u003e 8 (Latched)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,4,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"12,4,0\"\u003eOperating Supply Voltage :\u003c\/b\u003e 2.0V to 6.0V DC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,5,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"12,5,0\"\u003eMaximum Output Current: \u003c\/b\u003e5.2 mA per pin\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K-TECHNICS","offers":[{"title":"Default Title","offer_id":42866173608007,"sku":null,"price":0.0,"currency_code":"KES","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/7637\/2039\/files\/DIL-16_360x_832c0ada-2c39-4ed7-b047-b6f48c20c531.avif?v=1781095343","url":"https:\/\/www.ktechnics.com\/products\/74hc259d-8-bit-addressable-latch-1-to-8-demultiplexer-ic-16-pin-soic-surface-mount-package","provider":"K-TECHNICS","version":"1.0","type":"link"}