CY74FCT257T Datasheet (Texas Instruments)

CY74FCT257T, QUAD 2-INPUT MULTIPLEXER

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.

Data at the output is noninverted.

The CY74FCT257T is

D Function, Pinout, and Drive Compatible With FCT and F Logic D Reduced VOH (Typically = 3.3 V) Version of Equivalent FCT Functions D Edge-Rate Control Circuitry for Significantly Improved Noise Characteristics D Ioff Supports Partial-Power-Down Mode Operation D Matched Rise and Fall Times D Fully Compatible With TTL Input and Output Logic Levels D ESD Protection Exceeds JESD 22 2000-V Human-Body Model (A114-A) 200-V Machine Model (A115-A) 1000-V Charged-Device Mode