74LS573 Octal D-type F/F Latch Tri-State

The 74LS series of integrated circuits (ICs) was one of the most popular logic families of transistor-transistor logic (TTL) logic chips. 74LS series is a bipolar, low-power Schottky IC.The 74LS573 is a high-speed octal latch with buffered common Latch Enable (LE) and buffered common Output Enable (OE) inputs.