74LVC574A

Document number: DS35898 Rev. 1 - 2

2 of 11

www.diodes.com

July 2014

© Diodes Incorporated

74LVC574A

Ordering Information

74 LVC 574A xxx -13

Logic Device

Function

Package

Packing

74 : Logic Prefix

574 :

Octal D-Type

Flip-Flop with 3

State Outputs

T20 : TSSOP-20

-13 : 13” Tape & Reel

Q20 : QFN-20

Part Number

Package

Code

Package

(Note 4 & 5)

Package

Size

13” Tape and Reel

Quantity

Part Number Suffix

74LVC574AT20-13

T20

TSSOP-20

6.4mm X 6.5mm X 1.2mm

0.65 mm lead pitch

2500/Tape & Reel

-13

74LVC574AQ20-13

Q20

V-QFN4525-20

2.5mm X 4.5mm X 0.95mm

0.50 mm lead pitch

2500/Tape & Reel

-13

Notes:

4. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at

http://www.diodes.com/datasheets/ap02001.pdf.

5. V-QFN4525-20 is a JEDEC recognized naming convention that specifies the package thickness category as V and the number 4525 describes the

package as 4.5mm X 2.5mm.

Pin Descriptions

Pin

Number

Pin

Name

Description

1

OE

Output Enable

2

D1

Data Input

3

D2

Data Input

4

D3

Data Input

5

D4

Data Input

6

D5

Data Input

7

D6

Data Input

8

D7

Data Input

9

D8

Data Input

10

GND

Ground

11

CLK

Clock

12

Q8

Latch Output

13

Q7

Latch Output

14

Q6

Latch Output

15

Q5

Latch Output

16

Q4

Latch Output

17

Q3

Latch Output

18

Q2

Latch Output

19

Q1

Latch Output

20

Vcc

Supply Voltage

Logic Diagram

Function Table

(Each Latch)

INPUTS

OUTPUT

OE

CLK

D

Q

L

↑

H

H

L

↑

L

L

L

H or L

X

H

X

X

Z