| Manufacturer | Part Number | Description |
|---|---|---|
Fairchild (now onsemi)
| 74F257A | Quad 2-Input Multiplexer |
National Semiconductor (now Texas Instruments)
| 74F257A | Quad 2-Input Multiplexer |
Philips Semiconductors (now NXP Semiconductors)
| 74F257A | Quad 2-lnput selector/multiplexer |
Motorola Semiconductor (now NXP Semiconductors)
| MC74F257A | QUAD 2-INPUT MULTIPLEXER |
