U74LVC2G240

DESCRIPTION 

The U74LVC2G240 is a dual buffer or driver with 3-state 

outputs. It is designed for 1.65V to 5.5V operation. 

The U74LVC2G240 is composed of two 1-bit buffers/drivers 

with separate output-enable (OE ) inputs. When OE is low, data 

passes from A (input) to Y (output). When OE is high, the 

outputs are in the high-impedance state. 

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

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

the minimum value of the resistor is determined by the 

current-sinking capability of the driver. 

The U74LVC2G240 is fully specified for partial-power-down 

applications using IOFF. The IOFF circuitry disables the outputs and 

prevents damaging current backflow through the device when it is 

powered down. 

FEATURES 

* Wide Supply Voltage Range from 1.65V to 5.5V 

* Max tPD of 4.6 ns at 3.3V 

* Up to 5.5V Inputs Accept Voltages 

* Low Power Consumption, ICC = 10 μA (Max.) 

* ±24 mA Output Driver at 3.3V 

* Typical VOLP (Output Ground Bounce) < 0.8V, 

VCC = 3.3 V, TA = 25 °C 

* Typical VOHV (Output VOH Undershoot) > 2V, 

VCC = 3.3 V, TA = 25 °C 

规格书U74LVC2G240