L293, L293D

QUADRUPLE HALFH DRIVERS

SLRS008C − SEPTEMBER 1986 − REVISED NOVEMBER 2004

2

POST OFFICE BOX 655303

description/ordering information (continued)

On the L293, external high-speed output clamp diodes should be used for inductive transient suppression.

The L293and L293D are characterized for operation from 0

°C to 70°C.

block diagram

1

0

3

4

5

6

7

8

9

10

11

12

13

14

15

16

1

2

1

0

1

1

0

2

4

3

M

M

M

1

0

1

0

1

0

VCC2

VCC1

NOTE:

Output diodes are internal in L293D.

FUNCTION TABLE

(each driver)

INPUTS†

OUTPUT

A

EN

OUTPUT

Y

H

H

H

L

HL

X

L

Z

H = high level, L = low level, X = irrelevant,

Z = high impedance (off)

† In the thermal shutdown mode, the output is

in the high-impedance state, regardless of

the input levels.