1

Standard Products

UT54ACS253/UT54ACTS253

Dual 4-Input Multiplexers, Three-State Outputs

Datasheet

November 2010

www.aeroflex.com/logic

FEATURES

Permits multiplexing from N lines to 1 line

Performs parallel-to-serial conversion

1.2μ CMOS

- Latchup immune

High speed

Low power consumption

Single 5 volt supply

Available QML Q or V processes

Flexible package

- 16-pin DIP

- 16-lead flatpack

UT54ACS253 - SMD 5962-96574

UT54ACTS253 - SMD 5962-96575

DESCRIPTION

The UT54ACS253 and the UT54ACTS253 are 1-line to 4-line

multiplexers that contain drivers to supply full binary decoding.

Separate output control inputs are provided for each of the two

four-line sections.

Use the three-state outputs to drive data lines in bus-organized

systems. With all but one of the common outputs disabled the

low-impedance of the single enable output will drive the bus

line to a high or low logic level. Each output has its own strobe

(G).

The devices are characterized over full military temperature

range of -55

°C to +125°C.

FUNCTION TABLE

PINOUTS

16-Pin DIP

Top View

16-Lead Flatpack

Top View

LOGIC SYMBOL

SELECT

INPUTS

DATA INPUTS

OUTPUT

CONTROL

OUTPUT

B

A

C0

C1

C2

C3

G

Y

X

X

X

X

X

X

H

Z

L

L

L

X

X

X

L

L

L

L

H

X

X

X

L

H

L

H

X

L

X

X

L

L

L

H

X

H

X

X

L

H

H

L

X

X

L

X

L

L

H

L

X

X

H

X

L

H

H

H

X

X

X

L

L

L

H

H

X

X

X

H

L

H

1

2

3

4

5

7

6

16

15

14

13

12

10

11

1G

B

1C3

1C2

1C1

1C0

1Y

2G

A

2C3

2C2

2C1

2C0

8

9

2Y

1

2

3

4

5

7

6

16

15

14

13

12

10

11

1G

B

1C3

1C2

1C1

1C0

1Y

2G

A

2C3

2C2

2C1

2C0

2Y

8

9

(14)

A

(2)

B

1

0

MUX

Note:

1. Logic symbol in accordance with ANSI/IEEE Std 91-1984 and IEC

Publication 617-12.

(1)

1G

EN

(6)

1C0

0

(5)

1C1

(4)

1C2

(3)

1C3

(15)

2G

(10)

2C0

(11)

2C1

(7)

1Y

2C2

(13)

2C3

(9)

2Y

(12)

1

2

3

G

0

3

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