Logic IC, Octal D-Type Latch with 3 State Output Non Inverting, DIP, 20 Pins - 

The M74HC573 is an high speed CMOS octal latch with 3 State outputs fabricated with silicon gate C²MOS technology. This 8 Bit D-Type latches is controlled by a latch enable input (LE) and output enable input (OE). While the LE input is held at a high level, the Q outputs will follow the data input precisely. When LE is taken low, the Q outputs will be latched precisely at the logic level of D input data. While the OE input is at low level, the 8 outputs will be in a normal logic state (high or low logic level) and while is at high level the outputs will be in a high impedance state. The 3 State output configuration and the wide choice of outline make bus organised system simple. All inputs are equipped with protection circuits against static discharge and transient excess voltage.