Single 2-Input 1-Output Multiplexer, 4.75-5.25V, 0-70°C, SOIC-16
Quad 4-Bit D Flip-Flop, 110MHz, 5V, SOIC, Pos Edge
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74S257 Single 4-to-1 Multiplexer with 3-State Outputs, 5V Supply, SOIC-16 Package