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74LS191
4-bit Synchronous Up/Down binary Counter
Schematic Symbol
Pin Configuration (16 pins)
| Pin | Name | Type |
|---|---|---|
| 1 | P1 | input |
| 2 | Q1 | output |
| 3 | Q0 | output |
| 4 | Ce | input |
| 5 | D/U | input |
| 6 | Q2 | output |
| 7 | Q3 | output |
| 8 | GND | power_in |
| 9 | P3 | input |
| 10 | P2 | input |
| 11 | Pl | input |
| 12 | Tc | output |
| 13 | Rc | output |
| 14 | Cp | input |
| 15 | P0 | input |
| 16 | VCC | power_in |
Footprint
This symbol has no default footprint. It's typically a generic part where the footprint depends on the package you choose.