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Logic IC.
| Part number | 74LS90 4-Bit Binary Decade Counter |
|---|---|
| Category | Integrated Circuits › Logic Gates |
| Package | DIP-14 |
| Pins | 14 |
| Resolution | 4 bit |
74LS90 4-Bit Binary Decade Counter pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | CP1..3 | input | |
| 2 | R0(1) | input | |
| 3 | R0(2) | input | |
| 4 | NC | nc | |
| 5 | VCC | power | |
| 6 | R9(1) | input | |
| 7 | R9(2) | input | |
| 8 | Q2 | output | |
| 9 | Q1 | output | |
| 10 | GND | ground | |
| 11 | Q3 | output | |
| 12 | Q0 | output | |
| 13 | NC | nc | |
| 14 | CP0 | input |
Schematic symbol and footprint
Schematic symbol
Footprint: DIP-14 — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.