Datasheet | 4017 Counter Ic

By connecting the carry-out of one 4017 to the clock of a second, a 10×10 = 100-step counter is created. This is used in music sequencers and industrial timing.

The 4017 counter IC datasheet is more than a technical document—it is a piece of engineering history. From its Johnson counter architecture to its wide voltage tolerance and simple cascading scheme, every parameter tells a story of robust, practical design. Whether you are building a first electronics project or designing a legacy-compatible system, the 4017’s datasheet remains the definitive guide to one of the most elegantly simple digital circuits ever created. It proves that sometimes, the most powerful ideas are also the most straightforward: count from 0 to 9, light one output at a time, and repeat.

A 555 timer generates clock pulses, and each output lights an LED in sequence. The reset pin can be wired to any output to create shorter sequences (e.g., Q4 to reset for a 0–3 sequence). 4017 counter ic datasheet

The 4017 is a 5-stage Johnson counter that converts a clock input into a sequence of 10 high-state outputs.

Any output can be fed back to reset, yielding division ratios from 1/2 to 1/10. By connecting the carry-out of one 4017 to

The 4017 is part of the 4000B series, which operates over a wide voltage range (3V to 18V). Key specifications from the datasheet include:

While newer families like 74HC4017 offer higher speed (up to 60 MHz) and lower voltage operation (2V–6V), the original CD4017B remains in production. Its datasheet is a model of clarity: it teaches not just what the chip does, but how to think about sequential logic, propagation delays, and noise margins. Hobbyists still choose the 4017 because it requires no microcontroller, no programming, and offers immediate visual feedback. From its Johnson counter architecture to its wide

If you're looking for the datasheet of the 4017 counter IC, you can find it on various online resources, such as:

No datasheet is complete without warnings. For the 4017:

Kiyani's Lab 19s IC 4017 CMOS Counter Datasheet | PDF | Electronic Circuits - Scribd How does the IC-4017 function as a decade counter in electronic circuits? The IC-4017 functions as a decade counter by utilizing 5... Scribd MC14017B - Decade Counter - onsemi The MC14017B is a five-stage Johnson decade counter with built-in code converter. High speed operation and spike-free outputs are ... onsemi CD4017 - A Decade Counter with Decoded Output The CD4017 IC is a decade counter that counts to ten. It has 10 outputs that represent the numbers 0 to 9. The counter increases w... Build Electronic Circuits CD4017B data sheet, product information and support | TI.com * Fully static operation. * Medium speed operation… 10 MHz (typ.) at VDD = 10 V. * Standardized, symmetrical output characteristic... TI.com CD4017 ic in details | Basic things of cd4017 Apr 4, 2021 —