5-252

FAST AND LS TTL DATA

8-INPUT MULTIPLEXER

The TTL / MSI SN54 / 74LS151 is a high speed 8-input Digital Multiplexer.

It provides, in one package, the ability to select one bit of data from up to eight

sources. The LS151 can be used as a universal function generator to

generate any logic function of four variables. Both assertion and negation

outputs are provided.

CONNECTION DIAGRAM DIP (TOP VIEW)

14

13

12

11

10

9

1

2

3

4

5

6

7

16

15

8

VCC

I3

I4

I5

I6

I7

S1

S0

S2

I2

I1

I0

Z

Z

E

GND

PIN NAMES

LOADING (Note a)

HIGH

LOW

S0 – S2

E

I0 – I7

Z

Z

Select Inputs

Enable (Active LOW) Input

Multiplexer Inputs

Multiplexer Output (Note b)

Complementary Multiplexer Output

(Note b)

0.5 U.L.

0.5 U.L.

0.5 U.L.

10 U.L.

10 U.L.

0.25 U.L.

0.25 U.L.

0.25 U.L.

5 (2.5) 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.

SN54/74LS151

8-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

11

10

9

6

5

7 4 3 2 1 15 14 13 12

E I0 I1 I2 I3 I4 I5 I6 I7

S0

S1

S2

Z

Z