Nexperia

74LVC244A; 74LVCH244A

Octal buffer/line driver; 3-state

mna874

8

6

4

2

1A0

1A1

1A2

1A3

1OE

18

16

1Y0

1Y1

1Y2

1Y3

14

12

1

11

13

15

17

2A0

2A1

2A2

2A3

2OE

3

5

2Y0

2Y1

2Y2

2Y3

7

9

19

Fig. 3. Logic symbol

5. Pinning information

5.1. Pinning

74LVC244A

74LVCH244A

1OE

VCC

1A0

2OE

2Y0

1Y0

1A1

2A0

2Y1

1Y1

1A2

2A1

2Y2

1Y2

1A3

2A2

2Y3

1Y3

GND

2A3

001aad113

1

2

3

4

5

6

7

8

9

10

12

11

14

13

16

15

18

17

20

19

Fig. 4. Pin configuration SOT163-1 (SO20)

and SOT360-1 (TSSOP20)

001aad114

74LVC244A

74LVCH244A

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. 5. Pin configuration SOT764-1 (DHVQFN20)

74LVC_LVCH244A

All information provided in this document is subject to legal disclaimers.

© Nexperia B.V. 2021. All rights reserved

Product data sheet

Rev. 12 — 16 September 2021

3 / 17