U74LVC640

DESCRIPTION 

The U74LVC640 is designed for asynchronous communication 

between data buses and has inverting outputs. While the 

direction-control(DIR) input is high, data transmits from the A bus to 

the B bus. In contrast, Data transmits from the B bus to the A bus

DIR input is low. The output-enable(OE) will disable the device and 

isolate from the buses when high voltage is applied on it. 

 FEATURES 

* Supply Voltage Range From 1.2V to 3.6V 

* Input Accept Voltages up to 5.5V 

* Partial-Power-Down Mode Operation 

* Max tPD is 6.3ns at 3.3V

规格书U74LVC640