Nexperia

74ALVC244

Octal buffer/line driver; 3-state

5. Pinning information

5.1. Pinning

74ALVC244

1OE

VCC

1A0

2OE

2Y0

1Y0

1A1

2A0

2Y1

1Y1

1A2

2A1

2Y2

1Y2

1A3

2A2

2Y3

1Y3

GND

2A3

aaa-027567

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)

74ALVC244

VCC

aaa-027568

1

2

3

4

5

6

7

8

9

10

12

11

14

13

16

15

18

17

20

19 2OE

1Y0

2A0

1Y1

2A1

1Y2

2A2

1Y3

2A3

1OE

1A0

2Y0

1A1

2Y1

1A2

2Y2

1A3

2Y3

GND

Fig. 5. Pin configuration SOT360-1 (TSSOP20)

aaa-027569

74ALVC244

Transparent top view

1Y3

GND(1)

1A3

2Y3

2A2

2Y2

1Y2

1A2

2A1

2Y1

1Y1

1A1

2A0

2Y0

1Y0

1A0

2OE

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

1OE, 2OE

1, 19

output enable input (active LOW)

1A0, 1A1, 1A2, 1A3

2, 4, 6, 8

data input

2Y0, 2Y1, 2Y2, 2Y3

3, 5, 7, 9

bus output

GND

10

ground (0 V)

2A0, 2A1, 2A2, 2A3

17, 15, 13, 11

data input

1Y0, 1Y1, 1Y2, 1Y3

18, 16, 14, 12

bus output

VCC

20

supply voltage

74ALVC244

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© Nexperia B.V. 2021. All rights reserved

Product data sheet

Rev. 5 — 30 April 2021

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