
BINARY RIPPLE
Gabouin/BINARY-RIPPLE_RESOLUTION-IC
After looking for examples on Google, I had the idea to make like a Binary counter with LEDs. I am going to use an NE555 and CD4020.

The CD4020S is a counters, Divider made by GR in a SOP-16 package with 16 pins. 0℃~+60℃ 14 3V~15V 4MHz、10MHz、12MHz 500mW 75ns CD4000 Divide-by-2 Falling Edge Reset function Up Counter SOP-16 Counters, Dividers ROHS.
PCBKit's library has its KiCad symbol (4xxx:4020, from KiCad's library) and its footprint (Package_SO:SOIC-16_3.9x9.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 100 are in stock at JLCPCB (part C19818876). 1 open-source board in 1 repository on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | Q11 | Output |
| 2 | Q12 | Output |
| 3 | Q13 | Output |
| 4 | Q5 | Output |
| 5 | Q4 | Output |
| 6 | Q6 | Output |
| 7 | Q3 | Output |
| 8 | VSS | Power in |
| 9 | Q0 | Output |
| 10 | CLK | Input |
| 11 | Reset | Input |
| 12 | Q8 | Output |
| 13 | Q7 | Output |
| 14 | Q9 | Output |
| 15 | Q10 | Output |
| 16 | VDD | Power in |

Gabouin/BINARY-RIPPLE_RESOLUTION-IC
After looking for examples on Google, I had the idea to make like a Binary counter with LEDs. I am going to use an NE555 and CD4020.
<iframe src="https://pcbkit.io/embed/parts/gr/CD4020S" title="CD4020S in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/gr/CD4020S.jpg" alt="CD4020S" width="1200" height="900">[](https://pcbkit.io/parts/gr/CD4020S)Yes. The symbol is 4xxx:4020 and the footprint Package_SO:SOIC-16_3.9x9.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
SOP-16, with 16 pins. Its footprint is drawn on this page.
GR publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C19818876, with 100 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the CD4017BM96 by Texas Instruments, the HEF4060BT by Nexperia, the MC14060BD by onsemi and the CD4060BDTR(XBLW) by XBLW. Check their datasheets: a part that fits the footprint may still differ in its ratings.
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.