Nexperia

74LVC574A

Octal D-type flip-flop with 5 V tolerant inputs/outputs; positive edge-trigger; 3-state

5. Pinning information

5.1. Pinning

74LVC574A

OE

VCC

D0

Q0

D1

Q1

D2

Q2

D3

Q3

D4

Q4

D5

Q5

D6

Q6

D7

Q7

GND

CP

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1

2

3

4

5

6

7

8

9

10

12

11

14

13

16

15

18

17

20

19

Fig. 5. Pin configuration SOT163-1 (SO20) and

SOT360-1 (TSSOP20)

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74LVC574A

Transparent top view

Q7

D6

D7

Q6

D5

Q5

D4

Q4

D3

Q3

D2

Q2

GND(1)

D1

Q1

D0

Q0

9

12

8

13

7

14

6

15

5

16

4

17

3

18

2

19

terminal 1

index area

(1) This is not a ground pin. There is no electrical or

mechanical requirement to solder the pad. In case

soldered, the solder land should remain floating or

connected to GND.

Fig. 6. Pin configuration SOT764-1 (DHVQFN20)

5.2. Pin description

Table 2. Pin description

Symbol

Pin

Description

OE

1

output enable input (active LOW)

CP

11

clock input (LOW to HIGH; edge triggered)

D0, D1, D2, D3, D4, D5, D6, D7

2, 3, 4, 5, 6, 7, 8, 9

data input

Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7

19, 18, 17, 16, 15, 14, 13, 12

data output

GND

10

ground (0 V)

VCC

20

supply voltage

74LVC574A

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© Nexperia B.V. 2021. All rights reserved

Product data sheet

Rev. 6 — 30 August 2021

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