DS96F174MJ [NSC]
EIA-485/EIA-422 Quad Differential Drivers; EIA- 485 / EIA- 422四通道差分驱动器
| 型号： | DS96F174MJ |
| 厂家： | 
National Semiconductor |
| 描述： | EIA-485/EIA-422 Quad Differential Drivers |
| 文件： | 总11页 (文件大小：718K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
July 2000
DS96F172M/DS96F174C/DS96F174M
EIA-485/EIA-422 Quad Differential Drivers
General Description
Features
n Meets EIA-485 and EIA-422 standards
n Monotonic differential output switching
n TRI-STATE outputs
The DS96F172 and the DS96F174 are high speed quad
differential line drivers designed to meet EIA-485 Standards.
The DS96F172 and the DS96F174 offer improved perfor-
mance due to the use of L-FAST bipolar technology. The use
of LFAST technology allows the DS96F172 and DS96F174
to operate at higher speeds while minimizing power con-
sumption.
n Designed for multipoint bus transmission
n Common mode output voltage range: −7.0V to +12V
n Operates from single +5.0V supply
n Reduced power consumption
The DS96F172 and the DS96F174 have TRI-STATE® out-
puts and are optimized for balanced multipoint data bus
transmission at rates up to 15 Mbps. The drivers have wide
positive and negative common mode range for multipoint
applications in noisy environments. Positive and negative
current-limiting is provided which protects the drivers from
line fault conditions over a +12V to −7.0V common mode
range. A thermal shutdown feature is also provided. The
DS96F172 features an active high and active low Enable,
common to all four drivers. The DS96F174 features separate
active high Enables for each driver pair.
n Thermal shutdown protection
n DS96F172 and DS96F174 are lead and function
compatible with the SN75172/174 or the
AM26LS31/MC3487
n Military temperature range available
n Qualified for MIL-STD-883C
n Standard military drawings available (SMD)
n Available in DIP (J), LCC (E), and Flatpak (W) packages
Logic Diagrams
Function Tables (Each Driver)
DS96F172
DS96F172
Input
Enable
Outputs
A
H
L
E
H
H
X
X
L
E
X
X
L
Y
H
L
Z
L
H
L
H
L
H
L
L
H
Z
X
H
Z
00962514
DS96F174
DS96F174
Enable
Input
Outputs
A
H
L
E
H
H
L
Y
H
L
Z
L
H
Z
X
Z
H = High Level
L = Low Level
X = Don’t Care
00962515
Z = High Impedance (Off)
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
© 2004 National Semiconductor Corporation
DS009625
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Absolute Maximum Ratings
COMMERCIAL(Note 2)
Specifications for the 883 version of this product are
listed separately on the following pages.
Recommended Operating
Conditions
Min Typ Max Units
Supply Voltage (VCC
)
Storage Temperature Range (TSTG
Lead Temperature (Soldering, 60
sec.)
)
−65˚C to +175˚C
DS96F174C
4.75 5.0 5.25
−7.0 +12.0
V
V
Common Mode
300˚C
Output Voltage (VOC
Output Current HIGH
)
Maximum Package Power Dissipation (Note 1) at 25˚C
−60 mA
Ceramic DIP (J)
Supply Voltage
1500 mW
7.0V
(IOH
Output Current LOW
(IOL
)
60
mA
Enable Input Voltage
5.5V
)
Operating Temperature
(TA)
DS96F174C
0
+70
˚C
Note 1: Derate “J” package 10 mW/˚C above 25˚C.
Electrical Characteristics (Notes 3, 4)
Over recommended supply voltage and operating temperature range, unless otherwise specified
Symbol
Parameter
Conditions
Min
Typ
Max Units
(Note 2)
VIH
VIL
Input Voltage HIGH
2.0
V
Input Voltage LOW
TA = 0˚C to +70˚C
0.8
V
TA = −55˚C to +125˚C
TA = 0˚C to +70˚C
TA = 0˚C to +70˚C
0.7
VOH
VOL
VIC
Output Voltage HIGH
Output Voltage LOW
IOH = −33 mA
IOL = 33 mA
II = −18 mA
3.0
V
2.0
−1.5
6.0
V
V
V
Input Clamp Voltage
|VOD1
|VOD2
|
|
Differential Output Voltage
Differential Output Voltage
IO = 0 mA
RL = 54Ω, Figure 1
TA = −55˚C
1.2
1.5
2.0
1.0
2.0
2.3
V
RL = 100Ω, Figure 1
Figure 2
VOD
Differential Output Voltage
Change in Magnitude of Differential
Output Voltage (Note 5)
Common Mode Output Voltage
(Note 6)
TA = 0˚C to +70˚C
−40˚C to +125˚C
−55˚C to +125˚C
V
V
V
∆|VOD
|
|
RL = 54Ω or 100Ω,
Figure 1
0.2
0.4
3.0
VOC
RL = 54Ω or 100Ω, Figure 1
∆|VOC
Change in Magnitude of Common
Mode Output Voltage (Note 5)
Output Current with Power Off
High Impedance State Output
Current
RL = 54Ω or 100Ω, Figure 1
0.2
V
IO
VCC = 0V, VO = −7.0V to +12V
VO = −7.0V to +12V
50
50
µA
µA
IOZ
20
IIH
IIL
Input Current HIGH
VI = 2.4V
VI = 0.4V
VO = −7.0V
VO = 0V
20
−50
µA
µA
Input Current LOW
IOS
Short Circuit Output Current
(Note 7)
−250
−150 mA
150
VO = VCC
VO = +12V
250
ICC
Supply Current (All Drivers)
No Load
Outputs Enabled
Outputs Disabled
50
30
mA
ICCX
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2
COMMERCIAL
Switching Characteristics
VCC = 5.0V, TA = 25˚C
Symbol
tDD
Parameter
Conditions
Min
Typ
15
Max
20
Units
ns
Differential Output Delay Time
Differential Output Transition Time
Propagation Delay Time,
RL = 60Ω, Figure 3
tTD
15
22
ns
tPLH
RL = 27Ω, Figure 4
12
16
ns
Low-to-High Level Output
tPHL
Propagation Delay Time,
12
16
ns
High-to-Low Level Output
tZH
tZL
tHZ
tLZ
Output Enable Time to High Level
Output Enable Time to Low Level
Output Disable Time from High Level
Output Disable Time from Low Level
Output Disable Time from Low Level
with Load Resistor to GND (Note 8)
Driver Output to Output
RL = 110Ω, FIgure 4
RL = 110Ω, Figure 6
RL = 110Ω, Figure 5
RL = 110Ω, Figure 6
Figure 6
25
25
32
32
30
25
ns
ns
ns
ns
ns
25
20
tLZL
300
tSKEW
RL = 60Ω
1.0
4.0
ns
Note 2: “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices
should be operated at these limits. The tables of “Electrical Characteristics” provide conditions for actual device operation.
Note 3: Unless otherwise specified min/max limits apply across the 0˚C to +70˚C range for the DS96F174C. All typicals are given for V
= 5V and T = 25˚C.
A
CC
Note 4: All currents into the device pins are positive; all currents out of the device pins are negative. All voltages are reference to ground unless otherwise specified.
Note 5: ∆|V | and ∆|V | are the changes in magnitude of V and V respectively, that occur when the input is changed from a high level to a low level.
OD
OC
OD
OC
Note 6: In EIA-422A and EIA-485 standards, V , which is the average of the two output voltages with respect to ground, is called output offset voltage, V
.
OS
OC
Note 7: Only one output at a time should be shorted.
Note 8: For more information see Application Bulletin, contact Product Marketing.
Order Number: DS96F174CJ
DS96F174CN
NS Package Number J16A or N16E
3
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MIL-STD-883C
Absolute Maximum Ratings (Note 2)
Recommended Operating
Conditions
For complete Military Specifications, refer to the appro-
priate SMD or MDS.
Min Typ Max Units
Storage Temperature Range (TSTG
)
−65˚C to +175˚C
300˚C
Supply Voltage (VCC
)
Lead Temperature (Soldering, 60 sec.)
DS96F172M/DS96F174M
Common Mode
4.50 5.0 5.50
V
V
Maximum Package Power Dissipation (Note 9) at 25˚C
−7.0
+12.0
Ceramic LCC (E)
Ceramic DIP (J)
2000 mW
Output Voltage (VOC
Output Current HIGH (IOH
Output Current LOW (IOL
)
1800 mW
1000 mW
7.0V
)
−60
60
mA
mA
Ceramic Flatpak (W)
Supply Voltage
)
Operating Temperature (TA)
DS96F172M/DS96F174M
Enable Input Voltage
5.5V
−55
+125
Note 9: Above T = 25˚C, derate “E” package 13.4, “J” package 12.5, “W”
A
package 7.1 mW/˚C
Electrical Characteristics (Notes 3, 4)
Over recommended supply voltage and operating temperature range unless otherwise specified
Symbol
VIH
Parameter
Input Voltage HIGH
Conditions
Min
Max
Units
2.0
V
VIL
Input Voltage LOW
TA = 25˚C
0.8
0.7
V
TA = −55˚C, or +125˚C
VIC
Input Clamp Voltage
II = −18 mA
−1.5
6.0
V
V
|VOD1
|VOD2
|
|
Differential Output Voltage
Differential Output Voltage
IO = 0 mA
RL = 54Ω, VCC = 4.5V
Figure 1
TA = −55˚C
1.2
1.5
2.0
TA = 25˚C, or +125˚C
V
RL = 100Ω, VCC = 4.5V, Figure 1
∆|VOD
|
Change in Magnitude of Differential
Output Voltage (Note 5)
Common Mode Output Voltage
(Note 6)
RL = 54Ω or 100Ω,
TA = 25˚C, or +125˚C
TA = −55˚C
0.2
0.4
3.0
V
V
V
VCC = 4.5V, Figure 1
VOC
RL = 54Ω or 100Ω, Figure 1
∆|VOC
|
Change in Magnitude of Common
Mode Output Voltage (Note 5)
Output Current with Power Off
High Impedance State Output Current
Input Current HIGH
RL = 54Ω or 100Ω, VCC = 4.5V, Figure 1
0.2
V
IO
VCC = 0V, VO = −7.0V to +12V
VO = −7.0V to +12V
VI = 2.4V
50
50
µA
µA
µA
µA
IOZ
IIH
IIL
20
Input Current LOW
VI = 0.4V
−50
−250
−150
150
250
50
IOS
Short Circuit Output Current
(Note 7)
VO = −7.0V
VO = 0V
mA
mA
VO = VCC
VO = +12V
ICC
Supply Current (All Drivers)
No Load
Outputs Enabled
Outputs Disabled
ICCX
30
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4
MIL-STD-883C
Switching Characteristics
VCC = 5.0V
Symbol
Parameter
Conditions
TA = 25˚C
TA = 55˚C
TA = 125˚C Units
Max
Typ
15
Max
22
Max
30
tDD
tTD
Differential Output Delay Time
Differential Output Transition Time
Propagation Delay Time,
RL = 60Ω, CL = 15 pF,
Figure 3
30
40
25
ns
ns
ns
15
22
40
tPLH
RL = 27Ω, CL = 15 pF,
Figure 4
12
16
25
Low-to-High Level Output
tPHL
Propagation Delay Time,
12
16
25
25
ns
High-to-Low Level Output
tZH
tZL
tHZ
Output Enable Time to High Level
Output Enable Time to Low Level
Output Disable Time from High Level
RL = 110Ω, Figure 5
RL = 110Ω, Figure 6
RL = 110Ω, Figure 5,
Note 13
25
25
25
32
35
30
40
100
80
40
100
80
ns
ns
ns
tLZ
Output Disable Time from Low Level
Output Disable Time from Low Level
with Load Resistor to GND (Note 12)
Driver Output to Output
RL = 110Ω, Figure 6
Figure 6
20
25
40
40
ns
ns
tLZL
300
tSKEW
RL = 60Ω
1.0
4.0
10
10
ns
SMD Numbers: DS96F172MJ/883 5962-9076501MEA
DS96F174MJ/883 5962-9076502MEA
DS96F172ME/883, DS96F174ME/883
NS Package Number E20A
DS96F172MW-MIL, DS96F174MW/883
NS Package Number W16A
DS96F172ME/883 5962-9076501M2A
DS96F174MW/883 5962-9076502MFA
DS96F174ME/883 5962-9076502M2A
For Complete Military Product Specifi-
cations, refer to the appropriate SMD or
MDS.
Order Number: DS96F172MJ/883, DS96F174MJ/883
NS Package Number J16A
Parameter Measurement Information
00962513
00962503
FIGURE 2. Differential Output Voltage with
Varying Common Mode Voltage
FIGURE 1. Differential and Common
Mode Output Voltage
00962505
00962504
FIGURE 3. Differential Output Delay and Transition Times
5
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Parameter Measurement Information (Continued)
00962506
00962507
FIGURE 4. Propagation Delay Times
00962509
00962508
FIGURE 5. tZH and tHZ
00962511
00962510
FIGURE 6. tZL, tLZ, tLZL
Note 10: The input pulse is supplied by a generator having the following characteristics: f = 1.0 MHz, duty cycle = 50%, t ≤ 5.0 ns, t ≤ 5.0 ns, Z = 50Ω.
r
f
O
Note 11: C includes probe and jig capacitance.
L
Note 12: DS96F172 with active high and active low Enables is shown. DS96F174 has active high Enable only.
Note 13: To test the active low Enable E of DS96F172 ground E and apply an inverted waveform to E . DS96F174 has active high Enable only.
Note 14: For more information see Application Bulletin, Contact Product Marketing.
Note 15: Not tested for DS96F172MW-MIL device.
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6
Typical Application
00962512
The line length should be terminated at both ends in its characteristic impedance.
Stub lengths off the main line should be kept as short as possible.
Connection Diagrams
16-Lead Ceramic Dual-In-Line Package
NS Package Number J16A
DS96F172
DS96F174
00962501
00962502
Top View
Top View
20-Lead Ceramic Leadless Chip Carrier
NS Package Number E20A
00962518
00962519
NC = No connection
Top View
Top View
7
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Connection Diagrams (Continued)
16-Lead Ceramic Flatpak
NS Package Number W16A
00962501
00962502
Top View
Top View
Order Numbers are located at the end of the respective Electrical Tables.
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8
Physical Dimensions inches (millimeters)
unless otherwise noted
20-Lead Ceramic Leadless Chip Carrier (E)
Order Number DS96F172ME/883, DS96F174ME/883
NS Package Number E20A
16-Lead Ceramic Dual-In-Line Package (J)
Order Number DS96F172MJ/883,
DS96F174CJ, DS96F174MJ/883
NS Package Number J16A
9
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Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
16-Lead Ceramic Flatpack (W)
Order Number DS96F172MW/883, DS96F174MW/883
NS Package Number W16A
Molded Dual-In-Line Package (N)
Order Number DS96F174CN
NS Package Number N16E
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10
Notes
National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves
the right at any time without notice to change said circuitry and specifications.
For the most current product information visit us at www.national.com.
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in a significant injury to the user.
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expected to cause the failure of the life support device or
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