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DESCRIPTION/ORDERING INFORMATION (CONTINUED)

1

2

18

1Y1

1OE

1A1

4

16

1Y2

1A2

6

14

1Y3

1A3

8

12

1Y4

1A4

19

11

9

2Y1

2OE

2A1

13

7

2Y2

2A2

15

5

2Y3

2A3

17

3

2Y4

2A4

SN74LVC2244A

OCTAL BUFFER/DRIVER

WITH 3-STATE OUTPUTS

SCAS572K – APRIL 1996 – REVISED MARCH 2005

Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in

a mixed 3.3-V/5-V system environment.

preventing damaging current backflow through the device when it is powered down.

resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

FUNCTION TABLE

(EACH BUFFER)

INPUTS

OUTPUT

Y

OE

A

L

H

H

L

L

L

H

X

Z

LOGIC DIAGRAM (POSITIVE LOGIC)

2