The ´F157A is a quadruple 2-input data selector/multiplexer featuring a common strobe (G) input. When the strobe is high, all outputs are low. When the strobe is low, a 4-bit word is selected from one of two sources and is routed to the four outputs. The ´F157A provides true data.
The SN54F157A is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74F157A is characterized for operation from 0°C to 70°C.
| Technology family | F |
| Function | Digital Multiplexer |
| Configuration | 2 |
| Number of channels | 4 |
| Operating temperature range (°C) | 0 to 70 |
| Rating | Catalog |
| PDIP (N) | 16 | 181.42 mm² 19.3 x 9.4 |
| SOIC (D) | 16 | 59.4 mm² 9.9 x 6 |
| SOP (NS) | 16 | 79.56 mm² 10.2 x 7.8 |