5-257

FAST AND LS TTL DATA

DUAL 4-INPUT MULTIPLEXER

The LSTTL / MSI SN54 / 74LS153 is a very high speed Dual 4-Input

Multiplexer with common select inputs and individual enable inputs for each

section. It can select two bits of data from four sources. The two buffered

outputs present data in the true (non-inverted) form. In addition to multiplexer

operation, the LS153 can generate any two functions of three variables. The

LS153 is fabricated with the Schottky barrier diode process for high speed and

is completely compatible with all Motorola TTL families.

CONNECTION DIAGRAM DIP (TOP VIEW)

NOTE:

The Flatpak version

has the same pinouts

(Connection Diagram) as

the Dual In-Line Package.

14

13

12

11

10

9

1

2

3

4

5

6

7

16

15

8

VCC

Ea

Eb

S0

I3b

I2b

I0b

I1b

Zb

S1

I3a

I2a

I1a

I0a

Za GND

PIN NAMES

LOADING (Note a)

HIGH

LOW

S0

E

I0, I1

Z

Common Select Input

Enable (Active LOW) Input

Multiplexer Inputs

Multiplexer Output (Note b)

0.5 U.L.

0.5 U.L.

0.5 U.L.

10 U.L.

0.25 U.L.

0.25 U.L.

0.25 U.L.

5 (2.5) U.L.

NOTES:

a) 1 TTL Unit Load (U.L.) = 40

µA HIGH/1.6 mA LOW.

b) The Output LOW drive factor is 2.5 U.L. for Military (54) and 5 U.L. for Commercial (74)

Temperature Ranges.

LOGIC DIAGRAM

Ea I0a

I1a

I2a

I3a S1

S0 I0b

I1b

I2b

I3b Eb

Za

Zb

14

1

2

6

7

3

4

5

9

11

12

10

13

15

VCC = PIN 16

GND = PIN 8

= PIN NUMBERS

SN54/74LS153

DUAL 4-INPUT MULTIPLEXER

LOW POWER SCHOTTKY

J SUFFIX

CERAMIC

CASE 620-09

N SUFFIX

PLASTIC

CASE 648-08

16

1

16

1

ORDERING INFORMATION

SN54LSXXXJ

Ceramic

SN74LSXXXN

Plastic

SN74LSXXXD

SOIC

16

1

D SUFFIX

SOIC

CASE 751B-03

LOGIC SYMBOL

VCC = PIN 16

GND = PIN 8

1

6 5 4 3

10 11 12 13 15

14

2

7

9

Za

Zb

Sa

S0

Ea I0a I1a I2a I3a I0b I1b I2b I3b Eb