CY74FCT257T multiplexer equivalent, quad 2-input multiplexer.
using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is .
The CY74FCT257T has four identical two-input multiplexers that select four bits of data from two sources under the control of a common data-select (S) input. The I0 inputs are selected when S is low, and the I1 inputs are selected when S is high. Dat.
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