5962-89615012A [NSC]
EIA-485/EIA-422A Differential Bus Transceiver; EIA- 485 / EIA- 422A差分总线收发器
| 型号： | 5962-89615012A |
| 厂家： | 
National Semiconductor |
| 描述： | EIA-485/EIA-422A Differential Bus Transceiver |
| 文件： | 总14页 (文件大小：277K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
June 1998
DS16F95, DS36F95
EIA-485/EIA-422A Differential Bus Transceiver
The DS16F95/DS36F95 can be used in transmission line
applications employing the DS96F172 and the DS96F174
quad differential line drivers and the DS96F173 and
DS96F175 quad differential line receivers.
General Description
The DS16F95/DS36F95 Differential Bus Transceiver is a
monolithic integrated circuit designed for bidirectional data
communication on balanced multipoint bus transmission
lines. The transceiver meets both EIA-485 and EIA-422A
standards.
Features
n Meets EIA-485 and EIA-422A
n Meets SCSI-1 (5 MHZ) specifications
n Designed for multipoint transmission
n Wide positive and negative input/output bus voltage
ranges
The DS16F95/DS36F95 offers improved performance due to
the use of L-FAST bipolar technology. The L-FAST technol-
ogy allows for higher speeds and lower currents by minimiz-
ing gate delay times. Thus, the DS16F95 and DS36F95 con-
sume less power, and feature an extended temperature
range as well as improved specifications.
n Thermal shutdown protection
The DS16F95/DS36F95 combines a TRI-STATE® differen-
tial line driver and a differential input line receiver, both of
which operate from a single 5.0V power supply. The driver
and receiver have an active Enable that can be externally
connected to function as a direction control. The driver differ-
ential outputs and the receiver differential inputs are inter-
nally connected to form differential input/output (I/O) bus
ports that are designed to offer minimum loading to the bus
whenever the driver is disabled or when VCC = 0V. These
ports feature wide positive and negative common mode volt-
age ranges, making the device suitable for multipoint appli-
cations in noisy environments.
n Driver positive and negative current-limiting
n High impedance receiver input
n Receiver input hysteresis of 50 mV typical
n Operates from single 5.0V supply
n Reduced power consumption
n Pin compatible with DS3695 and SN75176A
n Military temperature range available
n Qualified for MIL-STD 883C
n Standard Military Drawings (SMD) available
n Available in DIP (J), SOIC (M), LCC (E), and Flatpak
(W) packages
The driver is designed to accommodate loads of up to 60 mA
of sink or source current and features positive and negative
current limiting in addition to thermal shutdown for protection
from line fault conditions.
Logic Diagram
Function Tables
Driver
Driver Input
Enable
Outputs
DI
H
L
DE
H
A
H
L
B
L
H
H
Z
X
L
Z
DS009629-20
Receiver
Differential Inputs
Enable
Output
A–B
VID ≥ 0.2V
VID ≤ −0.2V
X
RE
L
RO
H
L
L
H
Z
H = High Level
L = Low Level
X = Immaterial
Z = High Impedance (Off)
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
© 1998 National Semiconductor Corporation
DS009629
www.national.com
COMMERCIAL
Absolute Maximum Ratings (Note 2)
Specifications for the 883 version of this product are
listed separately on the following pages.
Recommended Operating
Conditions
Min
Typ Max
Units
Storage Temperature Range
Lead Temperature
−65˚C to +175˚C
Supply Voltage (VCC
)
DS36F95
4.75
4.50
5.0 5.25
5.0 5.50
V
V
(Soldering, 60 sec.)
300˚C
DS16F95
Maximum Package Power Dissipation (Note 1) at 25˚C
Voltage at Any Bus Terminal
(Separately or Common Mode)
’J’ Package
1300 mW
’M’ Package
735 mW
7.0V
(VI or VCM
Differential Input
Voltage (VID
)
−7.0
+12
V
V
Supply Voltage
±
12
Input Voltage (Bus Terminal)
Enable Input Voltage
+15V/−10V
5.5V
)
Output Current HIGH (IOH
)
Driver
−60
mA
µA
Receiver
−400
Output Current LOW (IOL
)
Driver
60
16
mA
mA
Receiver
Operating Temperature (TA)
DS36F95
0
+25 +70
+25 +125
˚C
˚C
DS16F95
−55
Note 1: Derate ’J’ package 8.7 mW/˚C above 25˚C.
Derate ’M’ package 5.88 mW/˚C above 25˚C.
Driver Electrical Characteristics (Notes 3, 4)
Over recommended supply voltage and operating temperature ranges, unless otherwise specified
Symbol
VIH
Parameter
Input Voltage HIGH
Conditions
Min
Typ
Max
Units
2.0
V
V
V
V
V
V
V
VIL
Input Voltage LOW
0.8
VOH
VOL
Output Voltage HIGH
Output Voltage LOW
Input Clamp Voltage
Differential Output Voltage
Differential Output Voltage
IOH = −55 mA
IOL = 55 mA
0˚C to +70˚C
3.0
0˚C to +70˚C
2.0
−1.3
6.0
VIC
II = −18 mA
|VOD1
|
|
IO = 0 mA
|VOD2
RL = 100Ω, Figure 1
RL = 54Ω, Figure 1
RL = 54Ω or 100Ω,
Figure 1
2.0
1.5
2.25
2.0
±
±
∆|VOD
|
Change in Magnitude of
Differential Output Voltage
(Note 5)
−40˚C to +125˚C
−55˚C to +125˚C
0.2
0.4
V
Common Mode Output
Voltage (Note 6)
VOC
3.0
V
∆|VOC
|
Change in Magnitude of
Common Mode Output
Voltage (Note 5)
±
0.2
V
IO
Output Current (Note 9)
(Includes Receiver II)
Input Current HIGH
Input Current LOW
Output Disabled
VO = +12V
VO = −7.0V
1.0
mA
−0.8
20
IIH
IIL
VI = 2.4V
VI = 0.4V
VO = −7.0V
µA
µA
−50
−250
IOS
Short Circuit Output Current
(Note 10)
VO = 0V
−150
150
mA
VO = VCC
VO = +12V
250
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2
Driver Electrical Characteristics (Notes 3, 4) (Continued)
Over recommended supply voltage and operating temperature ranges, unless otherwise specified
Symbol
Parameter
Supply Current
(Total Package)
Conditions
DE = 2V, RE = 0.8V
Min
Typ
Max
Units
ICC
No Load,
28
All Inputs Open
Outputs Enabled
mA
ICCX
DE = 0.8V, RE = 2V
Outputs Disabled
25
COMMERCIAL
Driver Switching Characteristics
VCC = 5.0V, TA = 25˚C
Symbol
tDD
Parameter
Conditions
Min
8.0
8.0
6.0
Typ
15
Max
Units
ns
Differential Output Delay Time
Differential Output Transition Time
Propagation Delay Time,
RL = 60Ω, Figure 3
20
22
16
tTD
15
ns
tPLH
RL = 27Ω, Figure 4
12
ns
Low-to-High Level Output
tPHL
Propagation Delay Time,
6.0
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
RL = 110Ω, Figure 5
RL = 110Ω, Figure 6
RL = 110Ω, Figure 5
RL = 110Ω, Figure 6
Load per Figure 5
25
25
32
32
25
25
ns
ns
ns
ns
ns
20
20
tLZL
300
Timing per Figure 6
RL = 60Ω, Figure 3
tSKEW
Skew (Pulse Width Distortion)
1.0
4.0
ns
Receiver Electrical Characteristics
Over recommended supply voltage and operating temperature ranges, unless otherwise specified
Symbol
Parameter
Differential Input High
Threshold Voltage
Conditions
VO = 2.7V, IO = −0.4 mA
Min
Typ
Max
Units
VTH
0.2
V
VTL
Differential Input Low
Threshold Voltage (Note 7)
Hysteresis (Note 8)
VO = 0.5V, IO = 8.0 mA
VCM = 0V
−0.2
V
V
T+−VT−
35
50
mV
V
VIH
VIL
Enable Input Voltage HIGH
Enable Input Voltage LOW
Enable Input Clamp Voltage
Output Voltage HIGH
2.0
0.8
V
VIC
VOH
II = −18 mA
−1.3
V
VID = 200 mV,
IOH = −400 µA,
Figure 2
0˚C to +70˚C
2.8
2.5
V
−55˚C to +125˚C
IOL = 8.0 mA
VOL
Output Voltage LOW
VID = −200 mV,
Figure 2
0.45
0.50
V
IOL = 16 mA
±
IOZ
II
High Impedance State Output
Line Input Current (Note 9)
VO = 0.4V to 2.4V
Other Input = 0V
20
µA
VI = +12V
VI = −7.0V
1.0
0.8
20
mA
IIH
IIL
Enable Input Current HIGH
Enable Input Current LOW
Input Resistance
VIH = 2.7V
VIL = 0.4V
µA
µA
kΩ
mA
−50
22
RI
14
18
IOS
Short Circuit Output Current
(Note 9)
−15
−85
3
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Receiver Electrical Characteristics (Continued)
Over recommended supply voltage and operating temperature ranges, unless otherwise specified
Symbol
Parameter
Supply Current
(Total Package)
Conditions
DE = 2V, RE = 0.8V
Min
Typ
Max
Units
ICC
No Load,
28
All Inputs Open
Outputs Enabled
mA
ICCX
DE = 0.8V, RE = 2V
Outputs Disabled
25
COMMERCIAL
Receiver Switching Characteristics
VCC = 5.0V, TA = 25˚C
Symbol
tPLH
Parameter
Conditions
Min
Typ
Max
Units
Propagation Delay Time,
VID = 0V to +3.0V
14
19
24
ns
Low-to-High Level Output
CL = 15 pF, Figure 7
tPHL
Propagation Delay Time,
14
19
24
ns
High-to-Low Level Output
tZH
Output Enable Time to High Level
Output Enable Time to Low Level
Output Disable Time from High Level
Output Disable Time from Low Level
Pulse Width Distortion (SKEW)
CL = 15 pF, Figure 8
CL = 5.0 pF, Figure 8
Figure 7
10
12
12
12
1.0
16
18
20
18
4.0
ns
ns
ns
ns
ns
tZL
tHZ
tLZ
|tPLH−tPHL
|
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 −55˚C to +125˚C temperature range for the DS16F95 and across the 0˚C to +70˚C range for the
DS36F95. All typicals are given for V = 5V and T = 25˚C.
CC
A
Note 4: All currents into the device pins are positive; all currents out of the device pins are negative. All voltages are referenced 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 TIA/EIA-422A and TIA/EIA-485 Standards, V , which is the average of the two output voltages with respect to ground, is called output offset voltage,
OC
V
.
OS
Note 7: The algebraic convention, where the less positive (more negative) limit is designated minimum, is used in this data sheet for common mode input voltage
and threshold voltage levels only.
Note 8: Hysteresis is the difference between the positive-going input threshold voltage, V +, and the negative-going input threshold voltage, V
.
T−
T
Note 9: Refer to TIA/EIA-485 Standard for exact conditions.
Note 10: Only one output at a time should be shorted.
Order Number:
DS16F95J, NS Package Number J08A
DS36F95J, NS Package Number J08A
DS36F95M, NS Package Number M08A
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4
MIL-STD 883C
Absolute Maximum Ratings (Note 2)
For complete Military Product Specifications, refer to
the appropriate SMD or MDS.
Recommended Operating
Conditions
Min
Max
Units
Storage Temperature Range
Lead Temperature
−65˚C to +175˚C
Supply Voltage (VCC
)
DS16F95
4.50
−7.0
5.50
V
(Soldering, 60 sec.)
300˚C
Voltage at Any Bus Terminal
(Separately or Common Mode)
Maximum Power Dissipation (Note 11) at 25˚C
Ceramic ’E’ Package
1800 mW
1300 mW
TBD
(VI or VCM
Differential Input
Voltage (VID
)
+12
V
V
Ceramic ’J’ Package
±
12
Ceramic ’W’ Package
)
Supply Voltage
7.0V
Output Current HIGH (IOH
)
Input Voltage (Bus Terminal)
Enable Input Voltage
+15V/−10V
5.5V
Driver
−60
mA
µA
Receiver
−400
Output Current LOW (IOL
)
Driver
60
16
mA
mA
Receiver
Operating Temperature (TA)
DS16F95
−55
+125
˚C
=
Note 11: Above T
25˚C, derate E package, J package 8.7 mW/˚C, W
A
package 125 mW/˚C.
Driver Electrical Characteristics (Notes 3, 4)
Over recommended supply voltage and operating temperature ranges, unless otherwise specified
Symbol
VIH
Parameter
Input Voltage HIGH
Conditions
Min
Max
Units
VCC = 5.5V
VCC = 5.5V
2.0
V
V
V
V
V
V
V
VIL
Input Voltage LOW
0.8
VOH
VOL
Output Voltage HIGH
Output Voltage LOW
Input Clamp Voltage
Differential Output Voltage
Differential Output Voltage
IOH = −20 mA, VCC = 4.5V
3.0
IOL = +20 mA, VCC = 4.5V
2.0
−1.3
6.0
VIC
II = −18 mA
|VOD1
|
|
IO = 0 mA, VIN = 0.8V or 2V, VCC = 5.5V
RL = 100Ω, VCC = 4.5V, Figure 1
RL = 54Ω, VCC = 4.5V, Figure 1
RL = 54Ω or 100Ω, Figure 1, VCC = 4.5V
|VOD2
2.0
1.5
±
∆|VOD
|
Change in Magnitude of
Differential Output Voltage
(Note 5)
0.2
V
VOD3
VOC
Differential Output Voltage
Common Mode Output
Voltage (Note 6)
VCM = −7V to +12V
1.0
V
V
RL = 54Ω or 100Ω
3.0
∆|VOC
|
Change in Magnitude of
Common Mode Output
Voltage (Note 5)
VCC = 4.5V, RL = 54Ω or 100Ω
±
0.2
V
IO
Output Current (Note 9)
(Includes Receiver II)
Input Current HIGH
Input Current LOW
Short Circuit Output
Current (Note 10)
Output Disabled
VO = +12V
VO = −7.0V
1.0
mA
VCC = 0V or 5.5V
−0.8
20
IIH
IIL
VI = 2.4V
µA
µA
VI = 0.4V
−50
−250
−150
150
250
28
IOS
VO = −7.0V, VIN = 0V or 3V
VO = 0V, VIN = 0V or 3V
VO = VCC, VIN = 0V or 3V
VO = +12V, VIN = 0V or 3V
No Load, DE = 2V, RE = 0.8V, Inputs Open
No Load, DE = 0.8V, RE = 2V, Inputs Open
mA
mA
ICC
Supply Current
(Total Package)
ICCX
25
5
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MIL-STD 883C
Driver Switching Characteristics
VCC = 5.0V
Symbol
Parameter
Conditions
Min Typ TA = 25˚C TA = 125˚C TA = −55˚C Units
Max
25
Max
30
Max
30
tDD
tTD
Differential Output Delay Time
RL = 60Ω, Figure 3
RL = 27Ω, Figure 4
8.0
8.0
15
15
ns
ns
Differential Output Transition
Time
25
30
30
tPLH
Propagation Delay Time,
Low-to-High Level Output
Propagation Delay Time,
High-to-Low Level Output
6.0
6.0
12
12
18
18
25
25
25
25
ns
ns
tPHL
tZH
tZL
tHZ
tLZ
Output Enable Time to High
Level
RL = 110Ω, Figure 5
RL = 110Ω, Figure 6
RL = 110Ω, Figure 5
RL = 110Ω, Figure 6
Load per Figure 5
25
25
35
40
30
30
45
50
40
40
45
50
40
40
ns
ns
ns
ns
ns
Output Enable Time to Low
Level
Output Disable Time from High
Level
20
Output Disable Time from Low
Level
20
tLZL
Output Disable Time from Low
300
Level with Load Resistor to GND Timing per Figure 6
Skew (Pulse Width Distortion) RL = 60Ω, Figure 3
tSKEW
1.0
6
12
12
ns
Receiver Electrical Characteristics
Over recommended supply voltage and operating temperature ranges, unless otherwise specified
Symbol
Parameter
Differential Input High
Threshold Voltage
Conditions
VO = 2.5V, IO = −0.4 mA, VCM = −7V, 0V, +12V
VCC = 4.5V, 5.5V
Min
Max
Units
VTH
0.2
V
VTL
Differential Input Low
Threshold Voltage (Note 7)
VO = 0.5V, IO = 8.0 mA, VCM = −7V, 0V, +12V,
VCC = 4.5V, 5.5V
−0.2
V
V
T+−VT− Hysteresis (Note 8)
VCM = 0V, VCC = 4.5V, 5.5V
35
mV
V
VIH
VIL
VIC
VOH
Enable Input Voltage HIGH
Enable Input Voltage LOW
Enable Input Clamp Voltage
Output Voltage HIGH
2.0
0.8
V
II = −18 mA, VCC = 5.5V
−1.3
V
VID = 200 mV,
IOH = −400 µA,
Figure 2, VCC = 4.5V
VID = −200 mV,
Figure 2, VCC = 4.5V
VO = 0.4V, 2.4V
Other Input = 0V
VCC = 5.5V or
VCC = 0V
−55˚C to +125˚C
2.5
V
V
VOL
Output Voltage LOW
IOL = 8.0 mA
IOL = 16 mA
0.45
0.50
±
IOZ
II
High Impedance State Output
Line Input Current (Note 9)
20
µA
mA
VI = +12V
VI = −7.0V
1.0
−0.8
IIH
Enable Input Current HIGH
Enable Input Current LOW
Input Resistance
VIH = 2.7V
20
µA
µA
IIL
VIL = 0.4V
−50
RI
10
kΩ
mA
mA
IOS
ICC
ICCX
Short Circuit Output Current
Supply Current (Total Package)
VIN = 1V, VOUT = 0.0V (Note 10)
−15
−85
28
No Load, DE = 2V, RE = 0.8V, Inputs Open
No Load, DE = 0.8V, RE = 2.0V, Inputs Open
25
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6
MIL-STD 883C
Receiver Switching Characteristics
VCC = 5.0V
TA
25˚C
=
TA
125˚C
=
TA =
−55˚C
Symbol
Parameter
Conditions
Min Typ
Units
Max
Max
Max
tPLH
Propagation Delay Time,
VID = 0V to +3.0V
10
10
19
19
27
27
38
38
38
38
ns
ns
Low-to-High Level Output
Propagation Delay Time,
CL = 15 pF, Figure 7
tPHL
High-to-Low Level Output
Output Enable Time to High Level
Output Enable Time to Low Level
tZH
tZL
tHZ
CL = 15 pF, Figure 8
CL = 5.0 pF, Figure 8
10
12
12
20
20
20
30
30
30
30
30
30
ns
ns
ns
Output Disable Time from High
Level
CL = 20.0 pF, Figure 8
(Note 16)
12
30
40
40
ns
tLZ
Output Disable Time from Low
Level
CIL = 50 pF, Figure 8
12
20
8
30
16
30
16
ns
ns
|tPLH−tPHL
|
Pulse Width Distortion (SKEW)
Figure 7
1.0
Ordering Number:
DS16F95J/883, NS Package Number J08A
DS16F95E/883, NS Package Number E20A
DS16F95W/883, NS Package Number W10A
SMD Number:
↔
DS16F95J/883
5962-8961501PA
↔
DS16F95W-SMD
5962-8961501HA
↔
DS16F95E/883
5962-89615012A
Parameter Measurement Information
DS009629-2
DS009629-3
FIGURE 1. Driver VOD and VOC (Note 15)
FIGURE 2. Receiver VOH and VOL
DS009629-4
DS009629-5
t
= |t |
–t
SKEW
PLHD PHLD
FIGURE 3. Driver Differential Output Delay and Transition Times (Notes 12, 14)
7
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Parameter Measurement Information (Continued)
DS009629-6
DS009629-7
FIGURE 4. Driver Propagation Times (Notes 12, 13)
DS009629-9
DS009629-8
FIGURE 5. Driver Enable and Disable Times (tZH, tHZ) (Notes 12, 13, 14)
DS009629-11
DS009629-10
FIGURE 6. Driver Enable and Disable Times (tZL, tLZ, tLZL) (Notes 12, 13, 14)
DS009629-13
DS009629-12
FIGURE 7. Receiver Propagation Delay Times (Notes 12, 13)
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8
Parameter Measurement Information (Continued)
DS009629-14
DS009629-16
DS009629-15
DS009629-18
DS009629-17
FIGURE 8. Receiver Enable and Disable Times (Notes 12, 13, 15)
Note 12: The input pulse is supplied by a generator having the following characteristics: PRR = 1.0 MHz, 50% duty cycle, t ≤ 6.0 ns, t ≤ 6.0 ns, Z = 50Ω.
r
f
O
Note 13:
C includes probe and stray capacitance.
L
Note 14: DS16F95/DS36F95 Driver enable is Active-High.
Note 15: All diodes are 1N916 or equivalent.
Note 16: Testing at 20 pF assures conformance to 5 pF specification.
Typical Application
DS009629-19
The line should be terminated at both ends in its characteristic impedance, typically 120Ω.
Stub lengths off the main line should be kept as short as possible.
9
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Connection Diagrams
8-Lead Dual-In-Line Package or Small Outline Molded
Package
20-Lead Ceramic Leadless Chip Carrier
DS009629-1
Order Number DS16F95, DS16F95J/883, DS36F95J,
DS36F95M
See NS Package Number J08A, or M08A
DS009629-21
Order Number DS16F95E/883
See NS Package Number E20A
10-Lead Ceramic Flatpak
DS009629-22
Order Number DS16F95W/883
See NS Package Number W10A
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10
11
Physical Dimensions inches (millimeters) unless otherwise noted
20-Lead Ceramic Leadless Chip Carrier (E)
Order Number DS16F95E/883
NS Package Number E20A
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12
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
8 Narrow Lead Ceramic Dual-In-Line Package (J)
Order Number DS16F95J, DS16F95J/883 or DS36F95J
NS Package Number J08A
8-Lead (0.150" Wide) Molded Small Outline Package, JEDEC
Order Number DS36F95M
NS Package Number M08A
13
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Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
10-Lead Ceramic Flatpak (W)
Order Number DS16F95W/883
NS Package Number W10A
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VICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMI-
CONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or sys-
tems which, (a) are intended for surgical implant into
the body, or (b) support or sustain life, and whose fail-
ure to perform when properly used in accordance
with instructions for use provided in the labeling, can
be reasonably expected to result in a significant injury
to the user.
2. A critical component in any component of a life support
device or system whose failure to perform can be rea-
sonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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Email: support@nsc.com
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www.national.com
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.
相关型号：
5962-8961603VA
ADC, Successive Approximation, 8-Bit, 1 Func, 1 Channel, Parallel, 8 Bits Access, CMOS, CDIP18, DIP-18
MAXIM
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