74HC573AN

74HC573ANThe 74HC573AN is an octal D-type transparent latch with 3-state outputs. The device features latch enable (LE) and outputenable (OE) inputs. When LE is HIGH, data at the inputs enter the latches. In this condition the latches are transparent, a latchoutput will change each time its corresponding D-input changes. When LE is LOW the latches store the information that was present at the inputs a set-up time preceding the HIGH-to-LOW transition of LE. A HIGH on OE causes the outputs to assume a high-impedance OFF-state. Operation of the OE input does not affect the state of the latches. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.