U74AHC574

DESCRIPTION 

The U74AHC574 is a octal edge-triggered D-type flip-flops 

with 3-state outputs, and it has 8 channels. 

When the OE input is low, on the positive transition of the 

clock (CLK) input, the Q outputs are set to the logic levels of the 

data (D) inputs. 

When the OE input is high, the outputs are in the 

high-impedance. 

To ensure the high-impedance state during power up or power 

down, OE should be tied to VCC through a pull-up resistor; the 

minimum value of the resistor is determined by the current-sinking 

capability of the driver. 

FEATURES 

* Operate from 2V to 5.5V 

* Max tpd of 13.2 ns at at VCC=3.3V, CL=15pF 

* Max ICC of 4uA 

* Typical VOL< 0.36V at VCC=4.5V, IO=8mA, TA=25°C 

* Typical VOH> 3.94V at VCC=4.5V, IO =-8mA, TA=25°C