UNISONIC TECHNOLOGIES CO., LTD

U74HC240

CMOS IC

www.unisonic.com.tw

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Copyright © 2010 Unisonic Technologies Co., Ltd

QW-R502-498.a

OCTAL BUFFERS AND LINE

DRIVERS WITH 3-STATE OUTPUTS

DESCRIPTION

The U74HC240 is a octal buffer and line driver with 3-state outputs.

It is organized as two 4-bit buffers/drivers with separate

output-enable ( OE ) inputs. When OE is high, the Y outputs are

in a high-impedance state and the outputs neither load nor drive

the bus lines. When OE is low, the device passes inverted data

from the A inputs to the Y outputs.

The U74HC240 is designed to improve the performance and

density of 3-state memory address drivers, clock drivers and

bus-oriented receivers and transmitters.

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

the minimum value of the resistor is determined by the

current-sinking capability of the driver.

FEATURES

* Wide supply voltage range from 2V to 6V

* ±6 mA output driver at 5V

* Low Input Current of 1 μA Max

ORDERING INFORMATION

Ordering Number

Lead Free

Halogen Free

Package

Packing

U74HC240L-P20-R

U74HC240G-P20-R

TSSOP-20

Tape Reel

U74HC240L-P20-T

U74HC240G-P20-T

TSSOP-20

Tube