Quad. 2-input Multiplexers (with Storage) - Hitachi Semiconductor

This circuit HD74HC298 is controlled by the signals word select and Clock When the word select input is taken low word 1 (A1, B1, C1 and D1) is presented to the inputs of the Flip-Flops and when word select is high word 2 (A2, B2, C2 and D2) is presented to the inputs of the Flip-Flops The selected word is clocked to the output terminals on the negative edge of the Clock pulse. By Renesas Technology