DESCRIPTION
The 74F253 has two identical 4-input multiplexers with 3-State outputs which select two bits from four sources selected by common Select inputs (S0, S1). When the individual Output Enable (OEa, OEb) inputs of the 4-input multiplexers are High, the outputs are forced to a high impedance (Hi-Z) state.
   
FEATURES
• 3-State outputs for bus interface and multiplex expansion
• Common select inputs
• Separate Output Enable Inputs