UNISONIC TECHNOLOGIES CO., LTD

U74AHC573

CMOS IC

www.unisonic.com.tw

1 of 6

Copyright © 2012 Unisonic Technologies Co., Ltd

QW-R502-797.A

OCTAL TRANSPARENT

D-TYPE LATCHES WITH

3-STATE OUTPUTS

DESCRIPTION

The U74AHC573 is an octal transparent D-type latch with

3-state outputs, and it has 8 channels.

When the OE input is low and the LE input is high, the Q

outputs follow the D inputs. When OE is low and LE is low, the

Q outputs are latched at the logic levels of the D inputs.

When the OE input is high, the outputs are in the

high-impedance. The OE does not affect the internal operations

of the latches. Old data can be retained or new data can be

entered while the outputs are in the high-impedance state.

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

minimum value of the resistor is determined by the current-sinking

capability of the driver.

FEATURES

* Operate from 2V to 5.5V

* Inputs Accept Voltages to 5.5V

TSSOP-20

ORDERING INFORMATION

Ordering Number

Package

Packing

Lead Free

Halogen Free

U74AHC573L-P20-R

U74AHC573G-P20-R

TSSOP-20

Tape Reel

U74AHC573L-P20-T

U74AHC573G-P20-T

TSSOP-20

Tube