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Электронный компонент: HD26LS31

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HD26LS31
Quadruple Differential Line Drivers With 3 State Outputs
ADE-205-576 (Z)
1st. Edition
Dec. 2000
Description
The HD26LS31 features quadruple differential line drivers which satisfy the requirements of EIA standard
RS-422A. This device is designed to provide differential signals with high current capability on bus lines.
The circuit provides enable input to control all four drivers. The output circuit has active pull up and pull
down and is capable of sinking or sourcing 40 mA.
Logic Diagram
1A
2A
3A
4A
Enable G
Enable G
1Y
1Z
2Y
2Z
3Y
3Z
4Y
4Z
HD26LS31
2
Pin Arrangement
(Top view)
1
2
3
4
5
6
7
1A
GND
1Y
1Z
2Z
8
Enable G
2Y
2A
13
14
15
10
11
12
9
16 V
CC
4A
4Y
4Z
Enable G
3Z
3Y
3A
Function Table
Input
Enables
Outputs
A
G
G
Y
Z
H
H
X
H
L
L
H
X
L
H
H
X
L
H
L
L
X
L
L
H
X
L
H
Z
Z
H :
High level
L
:
Low level
X :
Irrelevant
Z
:
High impedance (Off)
HD26LS31
3
Absolute Maximum Ratings
Item
Symbol
Ratings
Unit
Supply Voltage
V
CC
7.0
V
Input Voltage
V
IN
7.0
V
Output Voltage
V
OUT
5.5
V
Power Dissipation
P
T
1
W
Storage Temperature Range
Topr
0 to +70
C
Lead Temperature Range
Tstg
65 to +150
C
Note:
1. The absolute maximum ratings are values which must not individually be exceeded, and
furthermore, no two of which may be realized at the same time.
Recommended Operating Conditions
Item
Symbol
Min
Typ
Max
Unit
Application Terminal
Supply Voltage
V
CC
4.75
5.0
5.25
V
VCC
Output Current
I
OH
--
--
40
mA
All Output
Output Current
I
OL
--
--
40
mA
All Output
Operating Temperature
Topr
0
25
70
--
--