{"product_id":"cd4017be-decade-counter-johnson-divider-ic-16-pin-dip-package","title":"CD4017BE (Decade Counter \/ Johnson Divider IC - 16-Pin DIP Package)","description":"\u003cp data-path-to-node=\"5\"\u003eWhen you want to build a sequential LED light show—like the iconic sweeping scanner on the front of KITT from \u003ci data-path-to-node=\"5\" data-index-in-node=\"110\"\u003eKnight Rider\u003c\/i\u003e, or a flashing electronic roulette wheel—writing code for a microcontroller is often overkill. The \u003cb data-path-to-node=\"5\" data-index-in-node=\"222\"\u003eCD4017\u003c\/b\u003e is the classic, hardware-only solution. It is a CMOS decade counter and Johnson divider housed in a 16-pin package. In simple terms: it has ten output pins (numbered 0 through 9). Every time the chip receives a rising voltage \"tick\" on its Clock input, it turns OFF the current pin and turns ON the very next pin in the sequence.\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003eBecause it operates entirely on hardware logic, the CD4017 is almost always paired with a simple clock generator, like the legendary NE555 Timer IC. The 555 sets the speed of the \"ticks,\" and the 4017 distributes those ticks sequentially across its outputs. Beyond flashing LEDs, it is heavily used in analog synthesizer communities to build 10-step audio sequencers (like the famous \"Baby10\"). Operating anywhere from 3V up to 15V, it is incredibly forgiving and interfaces perfectly with a wide variety of hobbyist power supplies.\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\"\u003e10 Decoded Outputs:\u003c\/b\u003e Effortlessly shifts a single HIGH signal across ten sequential pins, making routing to LEDs, transistors, or relays incredibly simple.\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\"\u003eEasily Truncated Sequences:\u003c\/b\u003e Features a dedicated \"Reset\" pin. If you only want a 4-step sequence instead of 10, simply wire the 5th output pin directly to the Reset pin. The chip will instantly loop back to zero when it hits step 5.\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\"\u003eInfinitely Cascadable:\u003c\/b\u003e Includes a \"Carry Out\" pin (Pin 12) that pulses once every ten clock cycles. This allows you to daisy-chain multiple 4017 chips together to build massive 20, 30, or 100-step counters.\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\"\u003eWide Operating Voltage:\u003c\/b\u003e Built on rugged CD4000-series CMOS architecture, it operates flawlessly anywhere from 3V up to a massive 15V, completely eliminating the need for strict 5V regulators.\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 (16-DIP):\u003c\/b\u003e The standard 0.1-inch (2.54mm) pin pitch drops perfectly into any solderless breadboard alongside standard 555 timers and logic gates.\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\"\u003eLED Chasers \u0026amp; Visual Displays:\u003c\/b\u003e The absolute standard silicon for building chasing LED strips, DIY electronic dice, and police strobe light effects.\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\"\u003eAnalog Synthesizers (CV Sequencers):\u003c\/b\u003e The core control chip for DIY \"Baby 10\" step sequencers, using potentiometers on each output to drive different audio pitch control voltages.\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\"\u003eFrequency Division:\u003c\/b\u003e A highly reliable way to divide a fast incoming clock signal by any number from 2 up to 10.\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\"\u003eKeyboard Matrix Scanning:\u003c\/b\u003e Historically used to sequentially scan rows and columns on custom synthesizer keyboards and button matrices.\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 CD4000 Series (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 5-Stage Johnson Decade Counter\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\"\u003eOperating Supply Voltage (Vdd):\u003c\/b\u003e 3V to 15V DC\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\"\u003eMaximum Clock Frequency:\u003c\/b\u003e ~5 MHz (at 10V)\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\"\u003eNumber of Outputs:\u003c\/b\u003e 10 Decoded Outputs + 1 Carry Out\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\"\u003eMaximum Output Current:\u003c\/b\u003e ~10mA (Sufficient for standard indicator LEDs, but requires a transistor like a 2N2222 if driving heavy loads).\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\"\u003ePackage \/ Case:\u003c\/b\u003e 16-DIP (0.300\", 7.62mm width)\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\"\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":42865798905927,"sku":null,"price":0.0,"currency_code":"KES","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/7637\/2039\/files\/HTB1AHnBatjvK1RjSspiq6AEqXXae.webp?v=1781085023","url":"https:\/\/www.ktechnics.com\/products\/cd4017be-decade-counter-johnson-divider-ic-16-pin-dip-package","provider":"K-TECHNICS","version":"1.0","type":"link"}