SN74HC257D. Component family: CMOS logic integrated circuit. Configuration: surface-mounted component (SMD). Housing (JEDEC standard): -. Housing: SO16. Logic circuits family: 74HCxx series. Logic function: quad 2/1 channel multiplexer. Max temperature: +85°C.. Number of circuits: 4. Number of terminals: 16. RoHS: yes. Type of circuits: CMOS. [V]: +6V. Original product from manufacturer: Texas Instruments. Quantity in stock updated on 11/07/2025, 22:43