The 74HC573; 74HCT573 is a high-speed Si-gate CMOS device and is pin compatible with Low-power Schottky TTL (LSTTL).
The 74HC573; 74HCT573 has octal D-type transparent latches featuring separate D-type,inputs for each latch and 3-state true outputs for bus oriented applications. A latch enable(LE) input and an output enable (OE) input are common to all latches.