Specs side by side
2 parts compared · 14 differing specs across 14 total parameters.
| Parameter | ||
|---|---|---|
| Supply voltage | - | Same 3V to 15V window. |
| Memory & Peripherals | - | Its divide-by-eight sibling is the MC14022 - the naming preserves the 17/22 distinction across fabs. |
| Case | DIP-16 / SOIC-16 | DIP-16 |
| Compatibility Level | - | 100% Drop-in (Zero Code Change) |
| Component Category | Decade Counters (Johnson, Decoded) | - |
| Core & Architecture | - | The Motorola-line 4017 - the part many of these boards were originally built with, same die class and pinout. |
| Firmware Notes | - | Interchangeable with every other 4017 in the row. The 17-versus-22 mistake crosses fabs too: the suffix is the count, and the bodies look identical. |
| Hardware Notes | - | DIP-16 standard. |
| Lead Time Advantage | - | Shenzhen Spot Stock (24-48h Dispatch) |
| Market Reality | The CD4017 is the LED chaser: a divide-by-ten Johnson counter with ten decoded outputs that walk one at a time - the chip behind running lights, sequencers, toy logic and a hundred beginner circuits, still sold in the millions as kits, and still repaired on old appliance and signage boards. The 4000B ecosystem makes sourcing calm: HEF4017, MC14017, TC4017 and the whole letter-soup row are the same die and pinout by standard. The one real confusion sits next door - the CD4022, its divide-by-eight sibling in the same 16-pin body with a different output pin map. Same family, same controls, different dance. | - |
| Reference Part | - | CD4017 |
| Role In Circuit | Original Reference Part | - |
| Sourcing Advantage | - | Long-lived stock for legacy repair. |
| Sourcing Status | Active Shenzhen Spot Sourcing (24–48h) | - |