Hex 2-Line To 1-Line Universal Multiplexers With 3-State Outputs

The SN74ALS857 are hextuple 2-line to 1-line multiplexers with 3-state outputs. The devices CAN provide either true (COMP low) or inverted (COMP high) data at the Y outputs. In addition, the SN74ALS857 perform the logical AND function (A B) and the clear function as well. The four modes of operation are: Select A-data inputs Select B-data inputs AND A inputs with B inputs Clear
In either of the first two modes, OPER = 0 is high if all the selected A or B inputs are low. The six Y outputs and the OPER = 0 output are all 3-state and rated at 12-mA and 24-mA IOL for the SN54ALS857 and SN74ALS857 respectively. All outputs CAN be placed in the high-impedance state by applying a high level to the COMP, S0, and S1 inputs simultaneously.
The SN54ALS857 is characterized for operation over the full military temperature range of -55?C to 125?C. The SN74ALS857 is characterized for operation from 0?C to 70?C.
By Texas Instruments