54ACT11253, 74ACT11253

DUAL 1OF4 DATA SELECTORS/MULTIPLEXERS

WITH 3STATE OUTPUTS

SCAS040A − D3110, MARCH 1988 − REVISED APRIL 1993

POST OFFICE BOX 655303

POST OFFICE BOX 1443

Copyright

2−1

One Line

Outline Packages, Ceramic Chip Carriers,

and Standard Plastic and Ceramic 300-mil

DIPs

PCB Layout

Minimize High-Speed Switching Noise

CMOS) 1-

mm Process

description

Each

of

these

data

selectors/multiplexers

contains inverters and drivers to supply full binary

decoding data selection to the AND-OR gates.

Separate output control inputs are provided for

each of the two four-line sections.

The 3-state outputs can interface with and drive

data lines of bus-organized systems. With all but

one of the common outputs disabled (at a

high-impedance state), the low-impedance of

the single enabled output will drive the bus line

to a high or low logic level.

Each output has

its own strobe (G). The outputs are disabled when

G is high.

The 54ACT11253 is characterized for operation

over the full military temperature range of − 55

°C

to 125

°C. The 74ACT11253 is characterized for

operation from − 40

°C to 85°C.

FUNCTION TABLE

SELECT

INPUTS

DATA INPUTS

OUTPUT

CONTROL

OUTPUT

Y

B

A

C0

C1

C2

C3

CONTROL

G

Y

X

X

X

X

X

X

H

Z

L

LL

XXX

L

L

L

LH

XXX

L

H

L

HX

LX

X

L

L

L

HX

HX

X

L

H

H

LX

XLX

L

L

H

LX

XHX

L

H

H

HX

XX

L

L

L

H

H

X

X

X

H

L

H

Address inputs A and B are common to both sections.

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

A

B

1Y

GND

2Y

1G

2G

2C3

1C0

1C1

1C2

1C3

2C0

2C1

2C2

(TOP VIEW)

3

2

1 20 19

910 11 12 13

4

5

6

7

8

18

17

16

15

14

2C1

2C2

NC

2C3

2G

1C1

1C0

NC

A

B

54ACT11253 . . . FK PACKAGE

(TOP VIEW)

NC − No internal connection

2Y

1Y

5

3

2C2

2C1

2C0

2G

1C3

1C2

1C1

1G

B

A

9

10

11

7

13

14

15

6

2

1

EN

1

0

16

2C3

8

0

1

2

3

MUX

G

0

3

† 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.

1C0

54ACT11253 ...J PACKAGE

74ACT11253 ...D OR N PACKAGE

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.