54ACT11027, 74ACT11027

TRIPLE 3INPUT POSITIVENOR GATES

SCAS020A − D2957, JULY 1987 − REVISED APRIL 1993

POST OFFICE BOX 655303

POST OFFICE BOX 1443

Copyright

2−1

PCB Layout

Minimize High-Speed Switching Noise

CMOS) 1-

mm Process

Small-Outline Packages, Ceramic Chip

Carriers, and Standard Plastic and Ceramic

300-mil DIPs

description

These devices contain three independent 3-input

NOR gates. They perform the Boolean functions

Y = A + B + C or Y = A

SBSC in positive logic.

The 54ACT11027 is characterized for operation

over the full military temperature range of − 55

°C

to 125

°C. The 74ACT11027 is characterized for

operation from − 40

°C to 85°C.

FUNCTION TABLE

(each gate)

INPUTS

OUTPUT

A

B

C

OUTPUT

Y

H

X

X

L

X

HX

L

X

XH

L

L

L

L

H

logic diagram (positive logic)

1A

1B

1C

2A

2B

2C

3A

3B

3C

1

16

15

14

11

10

9

8

7

2

3

6

1Y

2Y

3Y

≥ 1

1A

1

1Y

1B

1C

16

15

2

2A

14

2Y

2B

2C

11

10

3

3A

9

3Y

3B

3C

8

7

6

† This symbol is in accordance with ANSI/IEEE Std 91-1984

and IEC Publication 617-12.

Pin numbers shown are for the D, J, and N packages.

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

1A

1Y

2Y

GND

GND

3Y

3C

3B

1B

1C

2A

2B

2C

3A

(TOP VIEW)

54ACT11027 ...J PACKAGE

74ACT11027 ...D OR N PACKAGE

3

2

1 20 19

910 11 12 13

4

5

6

7

8

18

17

16

15

14

2C

3A

NC

3B

3C

1C

1B

NC

1A

1Y

54ACT11027 . . . FK PACKAGE

(TOP VIEW)

NC − No internal connection

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

EPIC is a trademark of Texas Instruments Incorporated.