74244 Octal 3-state Schumitt Trigger Bus Buffers
Pin Arrangement

Electrical Characteristics
| Input | Output | N | LS | ALS | ALS 1000 | F | S | AS | AS 1000 | HC | HCT | Unit [max] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| - | L H | - | 18 | 10 | 14 | 6.2 | 6 | 6.2 | - | 29 | 29 | nS |
H L | - | 18 | 10 | 14 | 6.5 | 6 | 6.2 | - | 29 | 29 | nS | |
Z H | - | 23 | 20 | 22 | 6.7 | 12 | 9 | - | 38 | 38 | nS | |
Z L | - | 30 | 20 | 22 | 8 | 15 | 7.5 | - | 38 | 38 | nS | |
H Z | - | 18 | 10 | 10 | 7 | 9 | 6 | - | 38 | 38 | nS | |
L Z | - | 25 | 13 | 13 | 7 | 15 | 9 | - | 38 | 38 | nS |
| N | LS | ALS | ALS 1000 | F | S | AS | AS 1000 | Unit | ||
|---|---|---|---|---|---|---|---|---|---|---|
| A | High | - | 20 | 20 | 20 | 20 | 50 | 20 | - | uA |
| Low | - | 0.2 | 0.1 | 0.1 | 1 | 0.4 | 0.3 | - | mA | |
| G' | High | - | 20 | 20 | 20 | 20 | 50 | 20 | - | uA |
| Low | - | 0.2 | 0.1 | 0.1 | 1 | 2 | 0.3 | - | mA |
| N | LS | ALS | ALS 1000 | F | S | AS | AS 1000 | HC | HCT | Unit | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Y | High | - | 15 | 15 | 15 | 3 | 15 | 15 | - | 6 | 6 | mA |
| Low | - | 24 | 24 | 16 | 64 | 64 | 64 | - | 6 | 6 | mA | |
| Low@Z | - | 20 | 20 | - | - | 50 | 50 | - | 5 | 5 | uA | |
| High@Z | - | 20 | 20 | - | - | 50 | 50 | - | 5 | 5 | uA |

Reference
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