These devices contain four independent 2-input AND gates. The open-collector outputs require pull-up resistors to perform correctly. They may be connected to other open-collector outputs to implement active-low wired-OR or active-high wired-AND functions. Open-collector devices are often used to generate higher VOH levels.
The SN5409, SN54LS09, and SN54S09 are characterized for operation over the full military temperature range of -55°C to 125°C, The SN7409, SN74LS09, and SN74S09 are characterized for operation from 0°C to 70°C.
| Technology family | S |
| Supply voltage (min) (V) | 4.75 |
| Supply voltage (max) (V) | 5.25 |
| Number of channels | 4 |
| Inputs per channel | 2 |
| IOL (max) (mA) | 20 |
| IOH (max) (mA) | 0 |
| Input type | Bipolar |
| Output type | Open-collector |
| Features | High speed (tpd 10- 50ns) |
| Data rate (max) (Mbps) | 50 |
| Rating | Catalog |
| Operating temperature range (°C) | 0 to 70 |
| PDIP (N) | 14 | 181.42 mm² 19.3 x 9.4 |
| SOP (NS) | 14 | 79.56 mm² 10.2 x 7.8 |