U74HCT574 datasheet(4/5 Pages) UTC

Part #	U74HCT574

Description	OCTAL D-TYPE EDGE-TRIGGER FLIP-FLOP WITH 3-STATE OUTPUT

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Manufacturer	UTC [Unisonic Technologies]

Direct Link	http://www.utc-ic.com

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U74HCT574

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

4 of 5

www.unisonic.com.tw

QW-R502-653.A

TIMING REQUIREMENTS(TA=25°С, CL=50pF,unless otherwise specified)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN TYP MAX UNIT

Pulse duration, LE high

tW

VCC=4.5V

16

7

ns

Setup Time, data before LE↓

tSU

VCC=4.5V

12

3

ns

Hold Time, data after LE↓

tH

VCC=4.5V

5

-1

ns

DYNAMIC CHARACTERISTICS(TA=25°С, CL=50pF,RL=1kΩ,unless otherwise specified)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN TYP MAX UNIT

Propagation delay from input

(CP) to output (

Q )

tPD

(tPLH/tPHL)

VCC=4.5V

18

33

ns

3-state output enable time from input

(

OE ) to output ( Q )

tEN

(tPZL/tPZH)

VCC=4.5V

19

33

ns

3-state output disable time from

input (

OE ) to output ( Q )

tDIS

(tPLZ/tPHZ)

VCC=4.5V

16

28

ns

Output transition time, (

Q )

tT

(tR/tF)

VCC=4.5V

5

12

ns

OPERATING CHARACTERISTICS

PARAMETER

SYMBOL

TEST CONDITIONS

RATINGS

UNIT

Power Dissipation Capacitance

CPD

No load

50

pF

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