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U74AC244

OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS

Unisonic Technologies 

UNISONIC TECHNOLOGIES CO., LTD

U74AC244

OCTAL BUFFERS/DRIVERS

WITH 3-STATE OUTPUTS

„ DESCRIPTION

The U74AC244 is a octal buffers/drivers 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 noninverted data from

the A inputs to the Y outputs.

The U74AC244 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

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

* Wide supply voltage range from 2V to 6V

* Max tpd of 7 ns from A to Y at 5V

* Low power consumption, ICC = 4 μA (Max.) at 5.5V

* ±24 mA output driver at 5.5V

„ ORDERING INFORMATION

Ordering Number

Lead Free

Halogen Free

U74AC244L-P20-R

U74AC244G- P20-R

U74AC244L- P20-T

U74AC244G- P20-T

Package

TSSOP-20

TSSOP-20

CMOS IC

TSSOP-20

Packing

Tape Reel

Tube

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Copyright © 2012 Unisonic Technologies Co., Ltd

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