| Family | 74LCX257 |
| Logic Family | LCX |
| Logic Function | Multiplexer |
| Fabrication Technology | CMOS |
| Polarity | Non-Inverting |
| Output Type | 3-State |
| Input Signal Type | Single-Ended |
| Configuration | 4 x 2:1 |
| Output Signal Type | Single-Ended |
| Number of Inputs per Chip | 8 |
| Number of Outputs per Chip | 4 |
| Number of Selection Inputs per Element | 1 |
| Parity Invert Input | No |
| Number of Elements per Chip | 1 |
| Maximum Quiescent Current | 10uA |
| Maximum High Level Output Current | -24mA |
| Maximum Low Level Output Current | 24mA |
| Maximum Propagation Delay Time | 6.5ns@2.7V, 6ns@3.3V |
| Propagation Delay Test Condition | 50pF |
| Number of Input Enables per Element | 0 |
| Number of Output Enables per Element | 1 |
| Tolerant I/Os | 5V |
| Minimum Input Voltage | 2V |
| Input Voltage | 2.5V, 3.3V |
| Maximum Input Voltage | 3.6V |
| Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | 85°C |
| Mounting | Surface Mount |
| Packaging | Rail |
| Pins | 16 |
| Package | TSSOP |
| Width | 4.4 mm |
| Height | 0.9 mm |
| Length | 5 mm |
| Product Type | Multiplexer |