U74LVC74A

DESCRIPTION 

The U74LVC74A is a dual positive-edge-triggered D-type 

flip-flop. 

The preset ( PRE ) and clear ( CLR ) input can set or reset the 

output, egardless of the levels f others inputs. When the PRE and

CLR are inactive(high),data at the data input meeting the set-up 

time requirements is transferred to the outputs on the positive-going 

edge of the clock pulse. Following the hold-time interval, data D can 

be changed without affecting the levels at the outputs. 

FEATURES 

* 1.65V to 3.6V VCC Operation 

* Inputs Accept Voltages to 5.5V 

* Max tpd at 5.2ns of 3.3V 

* Typical VOLP<0.8V at VCC=3.3V, TA=25°C 

* Typical VOHV>2V at VCC=3.3V, TA=25°C 

规格书U74LVC74A