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MM74C923
20-key encoder
Schematic Symbol
Pin Configuration (20 pins)
| Pin | Name | Type |
|---|---|---|
| 1 | Y1 | input |
| 2 | Y2 | input |
| 3 | Y3 | input |
| 4 | Y4 | input |
| 5 | Y5 | input |
| 6 | OSC | input |
| 7 | KBM | input |
| 8 | X4 | output |
| 9 | X3 | output |
| 10 | GND | power_in |
| 11 | X2 | output |
| 12 | X1 | output |
| 13 | DA | output |
| 14 | XOE | input |
| 15 | E | tri_state |
| 16 | D | tri_state |
| 17 | C | tri_state |
| 18 | B | tri_state |
| 19 | A | tri_state |
| 20 | 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.