Nexperia

74LVC2244A

Octal buffer/line driver; 30 Ω series termination; 5 V tolerant input/output; 3-state

5. Pinning information

5.1. Pinning

74LVC2244A

001aad084

1

2

3

4

5

6

7

8

9

10

12

11

14

13

16

15

18

17

20

19

1OE

1A0

2Y0

1A1

2Y1

1A2

2Y2

1A3

2Y3

GND

VCC

2OE

1Y0

2A0

2A1

1Y2

1Y1

2A2

1Y3

2A3

Fig. 3. Pin configuration SOT163-1 (SO20) and

SOT360-1 (TSSOP20)

001aad085

74LVC2244A

Transparent top view

GND(1)

9

12

8

13

7

14

6

15

5

16

4

17

3

18

2

19

terminal 1

index area

1A0

2Y0

1A1

2Y1

1A2

2Y2

1A3

2Y3

2OE

1Y0

2A0

1Y1

2A1

1Y2

2A2

1Y3

(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. 4. Pin configuration SOT764-1 (DHVQFN20)

5.2. Pin description

Table 2. Pin description

Symbol

Pin

Description

1OE

1

output enable input (active LOW)

2OE

19

output enable input (active LOW)

1A0, 1A1, 1A2, 1A3

2, 4, 6, 8

data input

2A0, 2A1, 2A2, 2A3

17, 15, 13, 11

data input

1Y0, 1Y1, 1Y2, 1Y3

18, 16, 14, 12

data output

2Y0, 2Y1, 2Y2, 2Y3

3, 5, 7, 9

data output

GND

10

ground (0 V)

VCC

20

supply voltage

6. Functional description

Table 3. Functional table

H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state

Input

Output

nOE

nAn

nYn

L

L

L

L

H

H

H

X

Z

74LVC2244A

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© Nexperia B.V. 2021. All rights reserved

Product data sheet

Rev. 6 — 20 September 2021

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