| Integrated Circuits |
|---|
| 74280 |
|---|
| 9-bit odd/even parity generator/checker |
| PDF datasheet |
| I6 | 1 • | 14 | Vcc |
| I7 | 2 | 13 | I5 |
| NC | 3 | 12 | I4 |
| I8 | 4 | 11 | I3 |
| ΣE | 5 | 10 | I2 |
| ΣO | 6 | 9 | I1 |
| GND | 7 | 8 | I0 |
| Pin | Symbol | Description |
|---|---|---|
| 1 | I6 | data input |
| 2 | I7 | data input |
| 3 | NC | no connection |
| 4 | I8 | data input |
| 5 | ΣE | even parity output |
| 6 | ΣO | odd parity output |
| 7 | GND | ground |
| 8 | I0 | data input |
| 9 | I1 | data input |
| 10 | I2 | data input |
| 11 | I3 | data input |
| 12 | I4 | data input |
| 13 | I5 | data input |
| 14 | Vcc | supply voltage |
| Specifications |
|---|
| (typical values under recommended operating conditions, unless specified) |
| Parameter | Value | Unit |
|---|---|---|
| Propagation delay, In to ΣE |
17 (74HC) 18 (74HCT) |
ns |
| Propagation delay, In to ΣO |
20 (74HC) 22 (74HCT) |
ns |
| Note |
|---|
| Data is maintained by an independent source and accuracy is not guaranteed. Check with the manufacturer's datasheet for up-to-date information. |
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