Renesas HD26C32AFPEL Quadruple differential line drivers with 3 state output Datasheet

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
Package Type
Package
Abbreviation
Package Code
Taping Abbreviation
(Quantity)
HD26C32AP
DILP-16 pin (JEITA) DP-16E, -16FV
P
—
HD26C32AFPEL
SOP-16 pin (JEITA) FP-16DAV
FP
EL (2,000 pcs/reel)
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
16 VCC
IN A2 2
15 IN B1
OUT A 3
14 IN B2
Enable 4
13 OUT B
OUT C 5
12 Enable
IN C2 6
11 OUT D
IN C1 7
10 IN D2
GND 8
9 IN D1
(Top view)
Function Table
Enable
Differential Input
VID≥ V TH or OPEN
H
X
H
VTL < VID < VTH
X
H
L
X
?
VID≥ V TH
X
H
L
X
L
X
X
L
L
H
Z
H
L
Z
X
?
:
:
:
:
:
Enable
Outputs
High level
Low level
High impedance
Irrelevant
Indeterminate
Absolute Maximum Ratings (Ta = 25°C)
Item
2
Symbol
Ratings
Unit
Supply Voltage*
VCC
7
V
Common Mode Input Voltage
Differential Input Voltage*3
VCM
VDIFF
±14
±14
V
V
Enable Input Voltage
Output Current
VIN
IO
7
±25
V
mA
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
Symbol
Min
Typ
Max
Unit
Supply Voltage
Common Mode Input Voltage
VCC
VCM
4.5
—
5.0
—
5.5
±7
V
V
Differential Input Voltage
Output Current
VDIFF
IO
—
—
—
—
±7
±6
V
mA
Operating Temperature
Enable Input Rise / Fall Time
Topr
tr, tf
–40
—
—
—
85
500
°C
ns
Note:
1. This item guarantees maximum limit when one input switchies.
Waveform: Refer to test circuit of switching characteristics.
Logic Diagram
IN A2
+
IN A1
–
OUT A
+
IN B2
OUT B
IN B1
–
IN C2
+
IN C1
–
IN D2
+
IN D1
–
OUT C
OUT D
Enable G
Enable G
Electrical Characteristics (Ta = –40°C to +85°C, VCC = 5 V ± 10%)
Item
Diffrential Input
Threshold Voltage
Input Hysteresis
Symbol
VTH
Min Typ Max
Unit
—
—
0.2
V
Conditions
VCM = –7 to 7 V, VOUT≥ 3.8 V
VTL
VHYST
—
—
—
60
–0.2
—
V
mV
VCM = –7 to 7 V, VOUT≤ 0.3 V
VCM = 0 V
Enable Input
Voltage
VIH
VIL
2.0
—
—
—
—
0.8
V
V
Output Voltage
VOH
VOL
3.8
—
4.2
0.2
—
0.3
V
V
VCC = 4.5 V, VDIEF = 1 V, IOUT = –6.0 mA
VCC = 5.5 V, VDIEF = –1 V, IOUT = 6.0 mA
Output Leak
CurrentI
IOZ
—
—
0.5
–0.5
5.0
–5.0
µA
µA
Enable = 0.8 V, Enable = 2.0 V VOUT = VCC
Enable = 0.8 V, Enable = 2.0 V VOUT = GND
Input Current
IIN
—
1.1
1
–0.1* —
1.5
0.6
mA
mA
VIN = 10 V, Other Input = GND
VIN = 3 V, Other Input = GND
0
—
—
–2.0
–1.1
-2.5
mA
mA
VIN = –3 V, Other Input = GND
VIN = –10 V, Other Input = GND
Enable Input
Current
II
—
—
—
—
1.0
–1.0
µA
µA
VI = VCC
VI = GND
Input Resistance
Supply Current
RIN
ICC
5.8
6.8
16
10
23
kΩ
mA
VCM = –7 to 7 V (One Input AC GND)
VCC = 5.5 V, VDIEF = 1 V
Note:
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, VCC = 5 V ± 10%)
Item
Symbol
Min
Typ
Max
Unit
Conditions
Propagation Delay Time
tPLH
tPHL
7
7
16
16
25
25
ns
ns
CL = 50 pF, VDIEF = 2.5 V, VCM = 0 V
Output Rise / Fall Time
tRISE
tFALL
—
4
4
9
9
ns
ns
CL = 50 pF, VDIEF = 2.5 V, VCM = 0 V
Output Disable Time
tLZ
tHZ
—
13
13
22
22
ns
ns
CL = 50 pF, RL = 1000 Ω
VDIEF = 2.5 V
Output Enable Time
tZL
tZH
—
13
13
22
22
ns
ns
CL = 50 pF, RL = 1000 Ω
VDIEF = 2.5 V
1. tPLH, tPHL, tRISE, tFALL
Test Circuit
Input
+
Pulse
Generater
Output
–
CL =
50 pF
*1
*2
2V
Wave forms
2.5 V
Input +
0V
0V
–2.5 V
2.5 V
Input –
0V
0V
–2.5 V
t PLH
t PHL
90 %
Output
50 %
10 %
tr
Rev.2.00, Jul.16.2004, page 4 of 12
VOH
90 %
50 %
10 %
tf
VOL
HD26C32A
2. tHZ, tZH
Test Circuit
+
2.5 V
Output
–
CL =
50 pF
RL =
1000 Ω
Input
*2
Pulse
Generater
*1
2V
*3
Wave forms
3V
Enable
1.3 V
1.3 V
0V
3V
1.3 V
1.3 V
Enable
0V
t ZH
Output
t HZ
50 %
0.5 V
VOH
VOL
Rev.2.00, Jul.16.2004, page 5 of 12
HD26C32A
3. tLZ, tZL
Test circuit
VCC
RL =
1000 Ω
+
–2.5 V
Output
–
CL =
50 pF
Input
Pulse
Generator
2V
Wave forms
3V
Enable
1.3 V
1.3 V
0V
3V
1.3 V
1.3 V
Enable
0V
t ZL
t LZ
VOH
Output
50 %
0.5 V
Notes:
VOL
1. The pulse generator has the following characteristics:
PRR = 1 MHz, 50 % duty cycle, tr≤ 6 ns, t f≤ 6 ns, Zout = 50 Ω
2. CL includes probe and jig capacitance.
3. To test Enable input, ground Enable input and apply an inverted input waveform.
Rev.2.00, Jul.16.2004, page 6 of 12
HD26C32A
HD26C32A Line Receiver Applications
The HD26C32A is a line receiver that meets the EIA RS-422A and RS-423A conditions. It has a high in-phase input
voltage range, both positive and negative, enabling highly reliable transmission to be performed even in noisy
environments.
Its main features are listed below.
•
•
•
•
•
Operates on a single 5 V power supply.
±0.2 V input sensitivity in in-phase input voltage ±7 V range
Three-state output
On-chip input fail-safe circuit
On-chip power up/down protection circuit
As shown by the logic diagram, the enable function is common to all four drivers, and either active-high or active-low
input can be selected.
Output Voltage VOUT (V)
When exchange is carried out using a party line system, it is better to keep the receiver input bias current constituting
the driver load small, as this allows more receivers to be connected.
Output Voltage vs. Differential Input Voltage
6.0
Ta = 25°C
VCC = 5 V
5.0
VCM = +7 V
4.0
VCM = 0 V
3.0
VCM = –7 V
2.0
1.0
0.0
–80
–40
0
40
80
Differential Input Voltage VDIFF (mV)
Figure 1 Differential Input Voltage vs. Output Voltage Characteristics
Input Current vs. Input Voltage
2.0
Input Current IIN (mA)
Ta = 25°C
1.2
C
=
V
0
VC
0.4
0.0
5
C
=
5.
V
VC
–0.4
–1.2
–2.0
–15
9
–3 0 3
9
Input Voltage VIN (V)
15
Figure 2 Input Voltage vs. Input Current Characteristics
Rev.2.00, Jul.16.2004, page 7 of 12
HD26C32A
VCC
R1
Driver
R2
Receiver
RT
R1
R2
Figure 3 Method of Enhancing Fail-Safe Function
kΩ
Ω
=
50
0k
0.4
=
R2
R2
=3
0.5
R2
Differential Input Voltage VDIEF (V)
Differential Input Voltage vs. R1
0.6
10
VCC
Ω
0k
R
00
2=3
R2 =
0.3
R1
kΩ
∞
100Ω
Ta = 25°C
VCC = 5 V
0.2
R2
VDIFF
R1
R2
0.1
0
5
10
15
R1 (kΩ)
Figure 4 R1, R2 vs. Differential Input Voltage
1. Unidirectional Transmission (1 : 1 Configuration)
Driver B
Data Input
A
D
Receiver
F
RT
C
E
Figure 5 1 : 1 Unidirectional Transmission
Rev.2.00, Jul.16.2004, page 8 of 12
Data Output
HD26C32A
H : 5 µs/div
V : 2 V/div
Line : 1200 m, Duty : 50%
Frequency : 100 kHz, RT : 100 Ω
A
D
GND–
GND–
E
GND–
B
GND–
C
F
GND–
GND–
H : 50 ns/div
V : 2 V/div
Line : 12 m, Duty : 50%
Frequency : 10 MHz, RT : 100 Ω
A
D
GND–
GND–
E
GND–
B
GND–
C
F
GND–
GND–
Figure 6 Sample Transmission Waveforms
Rev.2.00, Jul.16.2004, page 9 of 12
HD26C32A
2. Unidirectional Transmission (1 : n Configuration)
Driver
Data
Input
Receiver
RT
RT
Data
Output
Enable
Receiver
Data
Output
Data
Output
Data
Output
Figure 7 1:n Unidirectional Transmission
With this connection method, n receivers are connected for one driver. In the RS-422A standard, ten receivers can be
connected simultaneously for one driver.
Conversely, it is also possible to connect one receiver for n drivers.
3. Bidirectional Transmission
Driver
Data
Input/
Output
Receiver
RT
Data
Input/
Output
RT
Enable
Enable
Receiver
Driver
Figure 8 Bidirectional Transmission
When bidirectional data exchange is performed using a combination of the HD26C31 and HD26C32A, since either high
or low output control is possible, using complementary enable inputs for the driver and receiver makes it easy to
configure the kind of combination illustrated in figure 8.
Extending this combination makes it possible to exchange n-bit data simultaneously, and handle a party line system.
Rev.2.00, Jul.16.2004, page 10 of 12
HD26C32A
Package Dimensions
As of January, 2003
Unit: mm
19.2
20.32 Max
9
6.3
7.4 Max
16
1
8
0.48 ± 0.1
2.54 ± 0.25
2.54 Min 5.06 Max
0.51 Min
1.3
0.89
7.62
+ 0.1
0.25 – 0.05
0˚ – 15˚
Package Code
JEDEC
JEITA
Mass (reference value)
DP-16E
Conforms
Conforms
1.05 g
Unit: mm
19.2
20.32 Max
9
6.3
7.4 Max
16
1
8
*0.48 ± 0.08
2.54 Min 5.06 Max
2.54 ± 0.25
1.3
0.51 Min
0.89
7.62
*0.25 ± 0.06
0˚ – 15˚
*NI/Pd/AU Plating
Rev.2.00, Jul.16.2004, page 11 of 12
Package Code
JEDEC
JEITA
Mass (reference value)
DP-16FV
Conforms
Conforms
1.05 g
HD26C32A
As of January, 2003
Unit: mm
10.06
10.5 Max
9
1
8
1.27
*0.40 ± 0.06
0.10 ± 0.10
0.80 Max
*0.20 ± 0.05
2.20 Max
5.5
16
0.20
7.80 +– 0.30
1.15
0 ˚ – 8˚
0.70 ± 0.20
0.15
0.12 M
*Ni/Pd/Au plating
Rev.2.00, Jul.16.2004, page 12 of 12
Package Code
JEDEC
JEITA
Mass (reference value)
FP-16DAV
—
Conforms
0.24 g
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