HD26C32A
Quadruple Differential Line Drivers With 3 State Outputs
REJ03D0293–0200Z
(Previous ADE-205-575 (Z))
Rev.2.00
Jul.16.2004
Description
The HD26C32A provides differential line receivers which realize low power dissipation by CMOS process. The device
has four receivers which meet the requirements of EIA standard RS-422A and RS-423A in a 16 pin package.
The enable function is common to all four receivers and offers a choise of active high or active low inputs. Fail safe
design ensures that if the inputs are open the outputs will always be high.
Features
•
Low power dissipation with CMOS process
•
Meets EIA standard RS-422A/423A
•
Input sensitivity: ±0.2V (In the range of ±7 V of common mode input voltage)
•
Propagation delay time: 19 ns typ
•
Input hysteresis width: 60 mV typ
•
Three state outputs
•
Differential Inputs are includes fail safe circuit
•
Power up and power down protection
•
Pin to pin compatible with HD26LS32/32A
•
Ordering Information
Part Name
HD26C32AP
HD26C32AFPEL
Package Type
Package Code
P
FP
Package
Abbreviation
—
EL (2,000 pcs/reel)
Taping Abbreviation
(Quantity)
DILP-16 pin (JEITA) DP-16E, -16FV
SOP-16 pin (JEITA) FP-16DAV
Note: Please consults the sales office for the above package availability.
Rev.2.00, Jul.16.2004, page 1 of 12
HD26C32A
Pin Arrangement
IN A1 1
IN A2 2
OUT A 3
Enable 4
OUT C 5
IN C2 6
IN C1 7
GND 8
16 V
CC
15 IN B1
14 IN B2
13 OUT B
12 Enable
11 OUT D
10 IN D2
9 IN D1
(Top view)
Function Table
Differential Input
V
ID
≥
V
TH
or OPEN
V
TL
< V
ID
< V
TH
V
ID
≥
V
TH
X
H
L
Z
X
?
:
:
:
:
:
High level
Low level
High impedance
Irrelevant
Indeterminate
Enable
H
X
H
X
H
X
L
X
L
X
L
X
L
H
Enable
H
?
L
Z
Outputs
Absolute Maximum Ratings
(Ta = 25°C)
Item
Supply Voltage*
2
Symbol
V
CC
V
CM
V
DIFF
V
IN
I
O
7
±14
±14
7
±25
Ratings
V
V
V
V
mA
Unit
Common Mode Input Voltage
Differential Input Voltage*
3
Enable Input Voltage
Output Current
Storage Temperature
Tstg
–65 to +150
°C
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. All voltage values except for differential input voltage are with respect to network ground terminal.
3. Differential input voltage is measured at the noninverting input with respect to the corresponding inverting
input.
Rev.2.00, Jul.16.2004, page 2 of 12
HD26C32A
Recommended Operating Conditions
(Ta = –40°C to +85°C)
Item
Supply Voltage
Common Mode Input Voltage
Differential Input Voltage
Output Current
Operating Temperature
Enable Input Rise / Fall Time
Note:
Symbol
V
CC
V
CM
V
DIFF
I
O
Topr
t
r
, t
f
4.5
—
—
—
–40
—
Min
5.0
—
—
—
—
—
Typ
5.5
±7
±7
±6
85
500
Max
V
V
V
mA
°C
ns
Unit
1. This item guarantees maximum limit when one input switchies.
Waveform: Refer to test circuit of switching characteristics.
Logic Diagram
IN A2
IN A1
IN B2
IN B1
IN C2
IN C1
IN D2
IN D1
Enable G
Enable G
+
OUT A
–
+
OUT B
–
+
OUT C
–
+
OUT D
–
Electrical Characteristics
(Ta = –40°C to +85°C, V
CC
= 5 V ± 10%)
Item
Diffrential Input
Threshold Voltage
Input Hysteresis
Enable Input
Voltage
Output Voltage
Output Leak
CurrentI
Input Current
Symbol
V
TH
V
TL
V
HYST
V
IH
V
IL
V
OH
V
OL
I
OZ
I
IN
Min Typ Max
Unit
—
—
0.2
V
—
—
2.0
—
3.8
—
—
—
—
60
—
—
4.2
0.2
0.5
–0.5
–0.2
—
—
0.8
—
0.3
5.0
–5.0
1.5
0.6
–1.1
-2.5
1.0
–1.0
10
23
V
mV
V
V
V
V
µA
µA
mA
mA
mA
mA
µA
µA
kΩ
mA
V
CC
= 4.5 V, V
DIEF
= 1 V, I
OUT
= –6.0 mA
V
CC
= 5.5 V, V
DIEF
= –1 V, I
OUT
= 6.0 mA
Enable = 0.8 V,
Enable
= 2.0 V V
OUT
= V
CC
Enable = 0.8 V,
Enable
= 2.0 V V
OUT
= GND
V
IN
= 10 V, Other Input = GND
V
IN
= 3 V, Other Input = GND
V
IN
= –3 V, Other Input = GND
V
IN
= –10 V, Other Input = GND
V
I
= V
CC
V
I
= GND
V
CM
= –7 to 7 V (One Input AC GND)
V
CC
= 5.5 V, V
DIEF
= 1 V
Conditions
V
CM
= –7 to 7 V, V
OUT
≥
3.8 V
V
CM
= –7 to 7 V, V
OUT
≤
0.3 V
V
CM
= 0 V
—
1.1
–0.1*
1
—
0
—
—
–2.0
—
—
6.8
16
Enable Input
Current
Input Resistance
Supply Current
Note:
I
I
R
IN
I
CC
—
—
5.8
1. This specification is nonstandard of RS-422A.
Rev.2.00, Jul.16.2004, page 3 of 12
HD26C32A
Switching Characteristics
(Ta = –40°C to +85°C, V
CC
= 5 V ± 10%)
Item
Propagation Delay Time
Output Rise / Fall Time
Output Disable Time
Output Enable Time
Symbol
t
PLH
t
PHL
t
RISE
t
FALL
t
LZ
t
HZ
t
ZL
t
ZH
Min
7
7
—
—
—
Typ
16
16
4
4
13
13
13
13
Max
25
25
9
9
22
22
22
22
Unit
ns
ns
ns
ns
ns
ns
ns
ns
Conditions
C
L
= 50 pF, V
DIEF
= 2.5 V, V
CM
= 0 V
C
L
= 50 pF, V
DIEF
= 2.5 V, V
CM
= 0 V
C
L
= 50 pF, R
L
= 1000
Ω
V
DIEF
= 2.5 V
C
L
= 50 pF, R
L
= 1000
Ω
V
DIEF
= 2.5 V
1. t
PLH
, t
PHL
, t
RISE
, t
FALL
Test Circuit
Input
+
Pulse
Generater
*1
Output
–
C
L
=
50 pF
*2
2V
Wave forms
2.5 V
Input +
0V
0V
–2.5 V
2.5 V
Input –
0V
0V
–2.5 V
t
PLH
90 %
Output
50 %
10 %
t
r
t
PHL
90 %
50 %
10 %
t
f
V
OH
V
OL
Rev.2.00, Jul.16.2004, page 4 of 12
HD26C32A
2. t
HZ
, t
ZH
Test Circuit
2.5 V
+
Output
–
C
L
=
50 pF
*2
R
L
=
1000
Ω
Input
Pulse
Generater
*1
2V
*3
Wave forms
3V
Enable
1.3 V
1.3 V
0V
3V
1.3 V
Enable
1.3 V
0V
t
ZH
Output
t
HZ
0.5 V
V
OH
V
OL
50 %
Rev.2.00, Jul.16.2004, page 5 of 12
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