54LS173 Datasheet PDF

National Semiconductor 54LS173

This four-bit register contains D-type flip-flops with totempole TRI-STATE outputs capable of driving highly capacitive or low-impedance loads The high-impedance state and increased high-logic-level drive provide these flip-flops with the capability of driving the bus lines in a bus-organized system without need for interface or pull-up components Gated enable inputs are provided for controlling the entry of data into the flip-flops When both data-enable inputs are low data at the D inputs are loaded into their respective flipflops on the next positive transition of the buffered clock input...