74F604

    The 74F604 multiplexed latch is ideal for storing data from two input buses, A or B, and providing data from either the A or B latches to the output bus. Organized as 8-bit A and B latches, the latch outputs are connected by pairs to eight 2-input multiplexers. A Select (SELECT A/B) input determines whether the A or B latch contents are multiplexed to the eight 3-State outputs. Data of the 74F604 entered from the B inputs are selected when SELECT A/B is Low; data from the A inputs are selected when SELECT A/B is High. Data enters the latches when the Latch Enable (LE) input is Low and is latched on the LE rising edge. The outputs are enabled when LE is High and disabled when LE is Low.