4

SN74LVC244A

SCAS414AA – NOVEMBER 1992 – REVISED JUNE 2016

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Copyright © 1992–2016, Texas Instruments Incorporated

Pin Functions

PIN

TYPE

DESCRIPTION

NAME

DB, DGV,

DW, N, NS,

PW, and

RGY

ZQN

RWP

1A1

2

A1

1

I

Input

1A2

4

B1

3

I

Input

1A3

6

C1

5

I

Input

1A4

8

D1

7

I

Input

1OE

1

A2

20

I

Output enable

1Y1

18

B4

17

O

Output

1Y2

16

C4

15

O

Output

1Y3

14

D4

13

O

Output

1Y4

12

E4

11

O

Output

2A1

11

E3

10

I

Input

2A2

13

D2

12

I

Input

2A3

15

C3

14

I

Input

2A4

17

B2

16

I

Input

2OE

19

A2

18

I

Output enable

2Y1

9

E2

8

O

Output

2Y2

7

D3

6

O

Output

2Y3

5

C2

4

O

Output

2Y4

3

B3

2

O

Output

GND

10

E1

9

—

Ground

20

A3

19

—

Power pin

(1)

Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating

Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2)

The input and output negative-voltage ratings may be exceeded if the input and output current ratings are observed.

(3)

(4)

(5)

6 Specifications

6.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)

(1)

MIN

MAX

UNIT

Supply voltage range

–0.5

6.5

V

–0.5

6.5

V

–0.5

6.5

V

–0.5

V

Input clamp current

–50

mA

Output clamp current

–50

mA

Continuous output current

±50

mA

±100

mA

Power dissipation

(4) (5)

500

mW

Storage temperature

–65

150

°C

Junction temperature

150

°C