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SN75HVD08, SN65HVD08
SLLS550D – NOVEMBER 2002 – REVISED JULY 2015
SNx5HVD08 Wide Supply Range RS-485 Transceiver
1 Features
3 Description
•
•
•
The SN65HVD08 combines a 3-state differential line
driver and differential line receiver designed for
balanced data transmission and interoperation with
ANSI TIA/EIA-485-A and ISO-8482E standardcompliant devices.
1
•
•
•
•
Operates With a 3-V to 5.5-V Supply
Consumes Less Than 90-mW Quiescent Power
Open-Circuit, Short-Circuit, and Idle-Bus Failsafe
Receiver
1/8th Unit-Load (up to 256 nodes on the bus)
Bus-Pin ESD Protection Exceeds 16-kV HBM
Driver Output Voltage Slew-Rate Limited for
Optimum Signal Quality at 10 Mbps
Electrically Compatible With ANSI TIA/EIA-485
Standard
2 Applications
•
•
•
•
•
Data Transmission With Remote Stations
Powered From the Host
Isolated Multipoint Data Buses
Industrial Process Control Networks
Point-of-Sale Networks
Electric Utility Metering
The wide supply voltage range and low quiescent
current requirements allow the SN65HVD08s to
operate from a 5-V power bus in the cable with as
much as a 2-V line voltage drop. Busing power in the
cable can alleviate the need for isolated power to be
generated at each connection of a ground-isolated
bus.
The driver differential outputs and receiver differential
inputs connect internally to form a differential
input/output (I/O) bus port that is designed to offer
minimum loading to the bus whenever the driver is
disabled or not powered. The drivers and receivers
have active-high and active-low enables respectively,
which can be externally connected together to
function as a direction control.
Device Information(1)
PART NUMBER
SN75HVD08,
SN65HVD08
PACKAGE
BODY SIZE (NOM)
SOIC (8)
4.90 mm × 3.91 mm
PDIP (8)
9.81 mm × 6.35 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Typical Application Schematic
Remote
(One of n Shown)
Host
5 V Power
Direct
Connection
to Host
Isolation
Barrier
SN65HVD08
5 V Return
Power Bus and Return Resistance
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
SN75HVD08, SN65HVD08
SLLS550D – NOVEMBER 2002 – REVISED JULY 2015
www.ti.com
Table of Contents
1
2
3
4
5
6
7
8
Features ..................................................................
Applications ...........................................................
Description .............................................................
Revision History.....................................................
Pin Configuration and Functions .........................
Specifications.........................................................
1
1
1
2
3
3
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
3
3
4
4
4
5
5
7
Absolute Maximum Ratings ......................................
ESD Ratings..............................................................
Recommended Operating Conditions.......................
Thermal Information ..................................................
Electrical Characteristics...........................................
Driver Switching Characteristics ...............................
Receiver Switching Characteristics...........................
Typical Characteristics ..............................................
Parameter Measurement Information .................. 8
Detailed Description ............................................ 12
8.1 Overview ................................................................. 12
8.2 Functional Block Diagram ....................................... 12
8.3 Feature Description................................................. 12
8.4 Device Functional Modes........................................ 12
9
Application and Implementation ........................ 14
9.1 Application Information............................................ 14
9.2 Typical Application ................................................. 17
10 Power Supply Recommendations ..................... 20
11 Layout................................................................... 20
11.1 Layout Guidelines ................................................. 20
11.2 Layout Example .................................................... 20
12 Device and Documentation Support ................. 21
12.1
12.2
12.3
12.4
12.5
12.6
Device Support......................................................
Related Links ........................................................
Community Resources..........................................
Trademarks ...........................................................
Electrostatic Discharge Caution ............................
Glossary ................................................................
21
21
21
21
21
21
13 Mechanical, Packaging, and Orderable
Information ........................................................... 21
4 Revision History
Changes from Revision C (July 2006) to Revision D
•
2
Page
Added Pin Configuration and Functions section, ESD Ratings table, Feature Description section, Device Functional
Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device
and Documentation Support section, and Mechanical, Packaging, and Orderable Information section .............................. 1
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Copyright © 2002–2015, Texas Instruments Incorporated
Product Folder Links: SN75HVD08 SN65HVD08
SN75HVD08, SN65HVD08
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SLLS550D – NOVEMBER 2002 – REVISED JULY 2015
5 Pin Configuration and Functions
D or P Package
8-Pin SOIC or PDIP
Top View
R
RE
DE
D
1
8
2
7
3
6
4
5
VCC
B
A
GND
Pin Functions
PIN
NAME
TYPE
NO.
DESCRIPTION
A
6
Bus input /
output
Driver output and receiver input (complementary to B)
B
7
Bus input /
output
Driver output and receiver input (complementary to A)
D
4
Digital input
Driver data input
DE
3
Digital input
Driver enable high
GND
5
Reference
potential
R
1
RE
2
Digital input
Receiver enable low
VCC
8
Supply
3-V to 5.5-V supply
Local device ground
Digital output Receive data output
6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range unless otherwise noted (1)
(2)
MIN
MAX
UNIT
–0.3
6
V
–9
14
V
Input voltage at D, DE, R or RE
–0.5
VCC + 0.5
V
Voltage input, transient pulse, A and B, through 100 Ω
–25
25
V
Receiver ouput current, IO
–11
11
mA
150
°C
150
°C
Supply voltage, VCC
Voltage at A or B
Maximum Junction Temperature, TJ
Storage Temperature, TSTG
(1)
(2)
–65
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended
Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
All voltage values, except differential I/O bus voltages, are with respect to network ground terminal.
6.2 ESD Ratings
VALUE
V(ESD)
(1)
(2)
Electrostatic
discharge
Human body model (HBM), per ANSI/ESDA/JEDEC JS001 (1)
A, B, and GND
16000
All pins
4000
Charged-device model (CDM), per JEDEC specification JESD22-C101 (2)
UNIT
V
1000
JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.
Copyright © 2002–2015, Texas Instruments Incorporated
Product Folder Links: SN75HVD08 SN65HVD08
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SN75HVD08, SN65HVD08
SLLS550D – NOVEMBER 2002 – REVISED JULY 2015
www.ti.com
6.3 Recommended Operating Conditions
MIN
Supply voltage, VCC
Input voltage at any bus terminal (separately or common mode), VI
High-level input voltage, VIH
V
12
V
2.25
VCC
0
0.8
–12
12
Driver
V
mA
–8
Driver
60
Receiver
Operating free-air temperature, TA
(1)
–60
Receiver
Low-level output current, IOL
UNIT
–7
Differential input voltage, VID
High-level output current, IOH
MAX
5.5
(1)
Driver, driver enable, and receiver enable inputs
Low-level input voltage, VIL
NOM
3
8
SN75HVD08
0
70
SN65HVD08
–40
85
mA
°C
The algebraic convention, in which the least positive (most negative) limit is designated as minimum is used in this data sheet.
6.4 Thermal Information
SN65HVD08, SN75HVD08
THERMAL METRIC (1)
D (SOIC)
P (PDIP)
8 PINS
8 PINS
UNIT
RθJA
Junction-to-ambient thermal resistance
175.4
125
°C/W
RθJC(top)
Junction-to-case (top) thermal resistance
53.6
34.9
°C/W
RθJB
Junction-to-board thermal resistance
45.1
23.7
°C/W
ψJT
Junction-to-top characterization parameter
10.1
12.1
°C/W
ψJB
Junction-to-board characterization parameter
44.4
23.6
°C/W
(1)
For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report, SPRA953.
6.5 Electrical Characteristics
over recommended operating conditions unless otherwise noted
PARAMETER
TEST CONDITIONS
MIN
|VOD|
Driver differential output voltage magnitude
RL= 60 Ω, 375 Ω on each output to 7 V to 12 V, See Figure 7
Δ|VOD|
Change in magnitude of driver differential
output voltage
RL= 54 Ω
VOC(PP)
Peak-to-peak driver common-mode output
voltage
Center of two 27-Ω load
resistors, See Figure 8
VIT+
Positive-going receiver differential input
voltage threshold
VIT-
Negative-going receiver differential input
voltage threshold
Vhys
Receiver differential input voltage threshold
hysteresis(VIT+ - VIT-)
VOH
Receiver high-level output voltage
IOH = -8 mA
VOL
Receiver low-level output voltage
IOL = 8 mA
IIH
Driver input, driver enable, and receiver
enable high-level input current
IIL
Driver input, driver enable, and receiver
enable low-level input current
IOS
Driver short-circuit output current
4
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TYP
MAX
UNIT
1.5
VCC
V
–0.2
0.2
V
0.5
V
–10
–200
mV
35
mV
2.4
7 V < VO < 12 V
mV
V
0.4
V
–100
100
µA
–100
100
µA
–265
265
mA
Copyright © 2002–2015, Texas Instruments Incorporated
Product Folder Links: SN75HVD08 SN65HVD08
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SLLS550D – NOVEMBER 2002 – REVISED JULY 2015
Electrical Characteristics (continued)
over recommended operating conditions unless otherwise noted
PARAMETER
TEST CONDITIONS
MIN
TYP
VI = 12 V
II
Bus input current (disabled driver)
Supply current
UNIT
130
VI = -7 V
–100
VI = 12 V, VCC = 0 V
µA
130
VI = -7 V. VCC = 0 V
ICC
MAX
–100
Receiver enabled, driver
disabled, no load
10
Driver enabled, receiver
disabled, no load
16
mA
Both disabled
Both enabled, no load
5
µA
16
mA
6.6 Driver Switching Characteristics
over recommended operating conditions unless otherwise noted
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
tPHL
Driver high-to-low propagation delay time
18
40
tPLH
Driver low-to-high propagation delay time
18
40
tr
Driver 10%-to-90% differential output rise time
10
55
tf
Driver 90%-to-10% differential output fall time
10
55
tSK(P)
Driver differential output pulse skew, |tPHL - tPLH|
ten
Driver enable time
tdis
Driver disable time
RL = 54 Ω, CL = 50 pF,See Figure 9
UNIT
ns
2.5
Receiver enabled, See Figures 4 and 5
55
ns
Receiver disabled, See Figures 4 and 5
6
µs
Receiver enabled, See Figures 4 and 5
90
ns
6.7 Receiver Switching Characteristics
over recommended operating conditions unless otherwise noted
PARAMETER
TEST CONDITIONS
tPHL
Receiver high-to-low propagation delay time
tPLH
Receiver low-to-high propagation delay time
tr
Receiver 10%-to-90% differential output rise time
tf
Receiver 90%-to-10% differential output fall time
tSK(P)
Receiver differential output pulse skew, |tPHL - tPLH|
ten
Receiver enable time
tdis
Receiver disable time
MIN
TYP
MAX
UNIT
70
70
CL = 15 pF, See Figure 12
5
ns
5
4.5
Driver enabled, See Figure 13
15
ns
Driver disabled, See Figure 14
6
µs
Driver enabled, See Figure 13
20
ns
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Product Folder Links: SN75HVD08 SN65HVD08
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SN75HVD08, SN65HVD08
SLLS550D – NOVEMBER 2002 – REVISED JULY 2015
www.ti.com
375 W ± 1%
Y
D
0 or 3 V
-7 V < V(TEST) < 12 V
VOD
60 W
± 1%
Z
DE
375 W ± 1%
Input
Generator
V
50 W
50%
tpZH(diff)
VOD (high)
1.5 V
0V
tpZL(diff)
-1.5 V
VOD (low)
Figure 1. Driver Enable Time From DE to VOD
The time tpZL(x) is the measure from DE to VOD(x). VOD is valid when it is greater than 1.5 V.
6
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SLLS550D – NOVEMBER 2002 – REVISED JULY 2015
6.8 Typical Characteristics
4
70
D and DE at VCC
RL = 54 W
TA = –40°C
I O – Driver Output Current – mA
Differential Output Voltage – V
TA = 25°C
DE at VCC
D at VCC
RL = 54 W
60
3.5
TA = 25°C
3
TA = 85°C
2.5
2
1.5
50
40
30
20
10
1
2.5
0
VCC – Supply Voltage – V
1.2 1.8 2.4
3
3.6 4.2
VCC – Supply Voltage – V
Figure 2. Differential Output Voltage vs Supply Voltage
Figure 3. Driver Output Current vs Supply Voltage
3
3.5
4
4.5
5
5.5
6
0.6
4.8
5.4
2.5
TA = 25°C
RE at VCC
DE at VCC
RL = 54 W
CL = 50 pF
VCC = 5 V
TA = 25°C
D, DE or RE input
Logic Input Threshold Voltage – V
I CC – RMS Supply Current – mA
120
0
100
80
60
40
0
2.5
5
7.5
Positive Going
2
1.5
Negative Going
1
0.5
0
2.5
10
Signaling Rate – Mbps
5.5
3.5
4.5
VCC – Supply Voltage – V
6.5
Figure 4. RMS Supply Current vs Signaling Rate
Figure 5. Logic Input Threshold Voltage vs Supply Voltage
500
450
400
Enable Time − ns
350
3.3 V
300
250
5V
200
150
100
50
0
-7
-2
3
8
13
V(TEST) − Common-Mode Voltage − V
Figure 6. Enable Time vs Common-Mode Voltage (See Figure 1)
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Product Folder Links: SN75HVD08 SN65HVD08
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SN75HVD08, SN65HVD08
SLLS550D – NOVEMBER 2002 – REVISED JULY 2015
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7 Parameter Measurement Information
375 Ω ±1%
VCC
DE
D
A
VOD
0 or 3 V
60 Ω ±1%
+
_
B
–7 V < V(test) < 12 V
375 Ω ±1%
Figure 7. Driver VOD With Common-Mode Loading Test Circuit
VCC
DE
Input
D
27 Ω ± 1%
A
VA
B
VB
VOC(PP)
27 Ω ± 1%
B
A
CL = 50 pF ±20%
VOC
∆VOC(SS)
VOC
CL Includes Fixture and
Instrumentation Capacitance
Input: PRR = 500 kHz, 50% Duty Cycle,tr