Datasheet

L293, L293D
QUADRUPLE HALF-H DRIVERS
SLRS008C − SEPTEMBER 1986 − REVISED NOVEMBER 2004
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
description/ordering information (continued)
On the L293, external high-speed output clamp diodes should be used for inductive transient suppression.
A V
CC1
terminal, separate from V
CC2
, is provided for the logic inputs to minimize device power dissipation.
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
V
CC2
V
CC1
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.