You're mid-build, the counter logic isn't ticking the way it should, and you need the right chip on the bench before the weekend. The 4520 is a dual binary up/down counter in a 16-pin CMOS package. Two independent counters on one IC. No hunting through three suppliers for a part that's been out of stock since Tuesday. Grab one, slot it in, and get your project moving again
| brand | Jaycar |
| part_number | 4520 |
| pin_count | 16 |
| ic_type | Dual Binary Up/Down Counter |
| logic_family | CMOS |
| category | Electronics & Components |
| subcategory | Electronic Components |