74F257ASC Quad 2-Input Multiplexer with 3-STATE Outputs
74F257ASCSCX Quad 2-Input Multiplexer with TRI-STATE Outputs
74F257ASCSJX Quad 2-Input Multiplexer with TRI-STATE Outputs
74F257ASCX 2-Input Digital Multiplexer
74F257ASJ Quad 2-Input Multiplexer with 3-STATE Outputs
74F257ASJSCX Quad 2-Input Multiplexer with TRI-STATE Outputs
74F257ASJSJX Quad 2-Input Multiplexer with TRI-STATE Outputs
74F257ASJX 2-Input Digital Multiplexer