#74CBTLV3257

Description: Quad 1:2 FET Multiplexer/Demultiplexer, Low-Voltage

Datasheet: http://www.ti.com/lit/ds/symlink/sn74cbtlv3257.pdf

Pinout:

    +-----------+
  S |[ 1]   [16]| VCC
  ~ |[ 2]   [15]| ~{OE}
  ~ |[ 3]   [14]| ~
  ~ |[ 4]   [13]| ~
  ~ |[ 5]   [12]| ~
  ~ |[ 6]   [11]| ~
  ~ |[ 7]   [10]| ~
GND |[ 8]    [9]| ~
    +-----------+