74139 Dual 2 to 4 Line Decoder
Pin Arrangement

Electrical Characteristics
| Input | Output | N | LS | ALS | ALS 1000 | F | S | AS | AS 1000 | HC | HCT | Unit [Max] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Enable | Y0 - Y7 | - | 32 | 8 | - | 8 | 10 | 5.5 | - | 44 | - | nS |
| Select | - | 38 | 10 | - | 9 | 12 | 6 | - | 55 | - | nS |
| N | LS | ALS | ALS 1000 | F | S | AS | AS 1000 | Unit | ||
|---|---|---|---|---|---|---|---|---|---|---|
| All Inputs | High | - | 20 | 20 | - | 20 | 50 | 20 | - | uA |
| Low | - | 0.36 | 0.1 | - | 0.6 | 2 | 0.5 | - | mA |
| N | LS | ALS | ALS 1000 | F | S | AS | AS 1000 | HC | HCT | Unit | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| All Outputs | High | - | 0.4 | 0.4 | - | 1 | 1 | 2 | - | 4 | - | mA |
| Low | - | 8 | 8 | - | 20 | 20 | 20 | - | 4 | - | mA |
Reference