The 74HC573D is a high speed CMOS OCTAL LATCH with 3-STATE OUTPUT fabricated with silicon gateC2MOS technology. It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. These 8-bit D-type latch is controlled by a latch enable input (LE) and an output enable input (OE).When the OE input is high, the eight outputs are in a high impedance state. All inputs are equipped with protection circuits against static discharge or transient excess voltageHigh speed: tpd = 13 ns (typ.) at VCC = 6.0 VLow power dissipation: ICC = 4.0 μA (max) at Ta = 25 Balanced propagation delays: tPLH ≈ tPHLWide operating voltage range: VCC(opr) = 2.0 V to 6.0 V