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Электронный компонент: HD26LS32

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To all our customers
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HD26LS32
Quadruple Differential Line Receivers With 3 State Outputs
ADE-205-577 (Z)
1st. Edition
Dec. 2000
Description
The HD26LS32 features quadruple line receivers designed to meet the specs of EIA standard RS-422A and
RS-423. This device operates from a single 5 V power supply. The enable function is common to all four
receivers and offers a choice of active high or active low input. Fail safe design ensures that if the inputs
are open, the outputs will always be high.
Logic Diagram
1Y
2Y
3Y
4Y
1A
1B
2A
2B
3A
3B
4A
4B
Enable G
Enable G
HD26LS32
2
Pin Arrangement
(Top view)
1
2
3
4
5
6
7
1B
GND
1A
1Y
2Y
8
Enable G
2A
2B
13
14
15
10
11
12
9
16 V
CC
4B
4A
4Y
Enable G
3Y
3A
3B
Function Table
Differential Input
Enable
Output
A B
G
G
Y
V
ID
V
TH
H
X
H
X
L
H
V
TL
< V
ID
< V
TH
H
X
?
X
L
?
V
ID
V
TL
H
X
L
X
L
L
X
L
H
Z
H :
High level
L
:
Low level
X :
Immaterial
?
:
Irrelevant
Z
:
High impedance
HD26LS32
3
Absolute Maximum Ratings
Item
Symbol
Ratings
Unit
Supply Voltage
V
CC
*
1
7.0
V
In Phase Input Voltage
V
IC
25
V
Differential Input Voltage
V
ID
*
2
25
V
Enable Input Voltage
V
IN
7
V
Output Sink Current
Iout
50
mA
Continuous Total Dissipation
P
T
1
W
Operating Temperature Range
Topr
0 to +70
C
Storage Temperature Range
Tstg
65 to 150
C
Notes: 1. All voltage values except for differential input voltage are with respect to network ground
terminal.
2. Differential input voltage is measured at the noninverting input with respect to the corresponding
inverting onput.
3. 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
Supply Voltage
V
CC
4.75
5.00
5.25
V
In Phase Input Voltage
V
IC
--
--
7.0
V
Output Current
I
OH
--
--
440
A
I
OL
--
--
8
mA
Operating Temperature
Topr
0
--
70
C