HD26C31
Quadruple Differential Line Drivers With 3 State Outputs
REJ03D0292–0200Z
(Previous ADE-205-574 (Z))
Rev.2.00
Jul.16.2004
Description
The HD26C31 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 20 mA.
Features
•
TTL input compatibility
•
Propagation delay time: 6 ns typ
•
Output to output skew: 0.5 ns typ
•
High output impedance in power off conditions
•
Meets EIA standard RS-422A
•
Operates from a single 5 V supply
•
Three state outputs
•
Low power dissipation with CMOS process
•
Power up and power down protection
•
Pin to pin compatible with HD26LS31
•
Ordering Information
Part Name
HD26C31FPEL
Package Type
Package Code
FP
Package
Abbreviation
Taping Abbreviation
(Quantity)
EL (2,000 pcs/reel)
SOP-16 pin (JEITA) FP-16DAV
Rev.2.00, Jul.16.2004, page 1 of 11
HD26C31
Pin Arrangement
1A 1
1Y 2
1Z 3
Enable G 4
2Z 5
2Y 6
2A 7
GND 8
16 V
CC
15 4A
14 4Y
13 4Z
12 Enable G
11 3Z
10 3Y
9 3A
(Top view)
Function Table
Input
A
H
L
H
L
X
H
L
X
Z
:
:
:
:
High level
Low level
Irrelevant
High impedance
H
H
X
X
L
Enables
G
X
X
L
L
H
G
H
L
H
L
Z
Outputs
Y
L
H
L
H
Z
Z
Absolute Maximum Ratings
(Ta = 25°C)
Item
Supply Voltage*
Input Voltage
Output Voltage
Power Dissipation
Storage Temperature Range
Lead Temperature*
3
Output Current
2
Symbol
V
CC
V
IN
V
OUT
P
T
Tstg
Tlead
I
OUT
Ratings
–0.5 to 7.0
–1.5 to V
CC
+1.5
–0.5 to V
CC
+0.5
500
–65 to 150
260
±150
Unit
V
V
V
mW
°C
°C
mA
Supply Current
I
CC
±150
mA
Notes: 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.
2. The values is defined as of ground terminal.
3. The values at 1.6 mm away from the package within 10 second, when soldering.
Rev.2.00, Jul.16.2004, page 2 of 11
HD26C31
Recommended Operating Conditions
(Ta = –40°C to +85°C)
Item
Supply Voltage
Input Voltage
Output Voltage
Operating Temperature
Input Rise/Fall Time*
1
Note:
Symbol
V
CC
V
IN
V
OUT
Ta
t
r
, t
f
4.5
0
0
–40
—
Min
5.0
—
—
25
—
Typ
5.5
V
CC
V
CC
85
500
Max
V
V
V
°C
ns
Unit
1. This guarantees maximum limit when one input switches.
Logic Diagram
1A
1Y
1Z
2Y
2Z
3A
3Y
3Z
4A
Enable G
Enable G
4Y
4Z
2A
Rev.2.00, Jul.16.2004, page 3 of 11
HD26C31
Electrical Characteristics
(Ta = –40°C to +85°C)
Item
Input Voltage
Output Voltage
Differential Output Voltage
Symbol
V
IH
V
IL
V
OH
V
OL
V
T
Min
2.0
—
2.4
—
2.0
Typ
—
—
3.4
0.2
3.1
Max
—
0.8
—
0.4
—
V
V
V
V
V
V
IN
= V
IH
or V
IL
, I
OH
= –20 mA
V
IN
=V
IH
or V
IL
, I
OL
= 20 mA
R
L
= 100
Ω
V
T
50
Ω
50
Ω
V
OS
Unit
Conditions
Difference In Differential
Output
Common ModeOutput
Voltage
Difference In Output
Common Mode
Input Current
Supply Current
Off State Output Current
IV
T
I – IV
T
I
V
OS
—
—
—
1.8
—
—
200
0.8
±0.5
—
—
0.4
3.0
0.4
±1.0
500
2.0
±5.0
V
V
V
µA
µA
mA
µA
V
IN
= V
CC
, GND, V
IH
or V
IL
I
OUT
= 0 µA, V
IN
= V
CC
or GND
I
OUT
=0 µA, V
IN
= 2.4 V or 0.5 V
V
OUT
= V
CC
or GND,
G
= V
IL
, G = V
IH
V
IN
= V
CC
or GND
V
CC
= 0 V, V
OUT
= 6 V
IV
OS
– V
OS
I —
I
IN
I
CC
I
CC
*
2
I
OZ
—
—
—
—
–30
—
Short Circuit Output Current I
SC
*
3
Output Current with Power I
OFF
–150 mA
100 µA
Off
I
OFF
—
—
–100 µA
V
CC
= 0 V, V
OUT
= –0.25 V
Notes: 1. All typical values are at V
CC
= Ta = 25°C.
2. 1 input: V
IN
= 2.4 V or 0.5 V, other inputs: V
IN
= V
CC
or GND
3. Not more than one output should be shorted at a time and duration of the short circuit should not exceed one
second.
Switching Characteristics
(Ta = –40°C to +85°C, V
CC
= 5 V ± 10%)
Item
Propagation Delay Time
Output To Output Skew
Differential Output Transition Time
Output Enable Time
Output Disable Time
Power Dissipation Capacitance
Input Capacitance
Symbol
t
PLH
t
PHL
Skew
t
TLH
t
THL
t
ZL
t
ZH
t
LZ
t
HZ
C
PD
C
IN
—
—
—
—
—
Min
2.0
2.0
—
Typ
6.0
6.0
0.5
6.0
6.0
11.0
13.0
5.0
7.0
50.0
6.0
Max
11.0
11.0
2.0
10.0
10.0
19.0
21.0
9.0
11.0
—
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
pF
pF
Conditions
Test Circuit (1)
Test Circuit (3)
Test Circuit (2)
Rev.2.00, Jul.16.2004, page 4 of 11
HD26C31
Test Circuit 1
V
CC
Input
Y
C1
Z
V
CC
G
Output
G
C3
Output
C2
R1
R3
1.5 V
S1
OPEN
R2
Palse Generator
Z
out
= 50
Ω
A
Note:
1. C1, C2 and C3 (40 pF) include probe and jig capacitance.
R1 = R2 = 50
Ω,
R3 = 500
Ω
Waveforms 1
t
r
Input A
10 %
t
PLH
Output Y
90 %
1.3 V
90 %
1.3 V
10 %
t
PHL
V
OH
1.3 V
1.3 V
V
OL
t
PHL
t
PLH
V
OH
Output Z
1.3 V
1.3 V
V
OL
V
OH
Output Y
50 %
50 %
V
OL
Skew
Skew
V
OH
Output Z
50 %
50 %
V
OL
t
f
3V
0V
Notes:
1. t
r
≤
6 ns, t
f
≤
6 ns
2. Input waveforms: PRR = 1 MHz, duty cycle 50%
Rev.2.00, Jul.16.2004, page 5 of 11
