HD74AC298

This HD74AC298 is a high-speed multiplexer with storage. It selects four bits of data from two sources (Ports) under the control of a common Select input (S). The selected data is transferred to the 4-bit output register synchronous with the HIGH-to-LOW transition of the Clock input (CP). The HD74AC298 4-bit register is fully edge triggered. The Data inputs (I₀ and I₁) and Select input (S) must be stable only one setup time prior to the HIGH-to-LOW transition of the clock for predictable operation.