Transceiver. SN65HVD485E Datasheet

SN65HVD485E Datasheet PDF


Part

SN65HVD485E

Description

Half-Duplex RS-485 Transceiver

Manufacture

etcTI

Page 30 Pages
Datasheet
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SN65HVD485E Datasheet
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SN65HVD485E
SLLS612E – JUNE 2004 – REVISED DECEMBER 2015
SN65HVD485E Half-Duplex RS-485 Transceiver
1 Features
1 Bus-Pin ESD Protection up to 15 kV
• 1/2 Unit Load: up to 64 Nodes on a Bus
• Bus-Open-Failsafe Receiver
• Glitch-Free Power-Up and Power-Down Bus
Inputs and Outputs
• Available in Small VSSOP-8 Package
• Meets or Exceeds the Requirements of the
TIA/EIA-485A Standard
• Industry-Standard SN75176 Footprint
2 Applications
• Motor Control
• Power Inverters
• Industrial Automation
• Building Automation Networks
• Industrial Process Control
• Battery-Powered Applications
• Telecommunications Equipment
3 Description
The SN65HVD485E device is a half-duplex
transceiver designed for RS-485 data bus networks.
Powered by a 5-V supply, it is fully compliant with the
TIA/EIA-485A standard. This device is suitable for
data transmission up to 10 Mbps over long twisted-
pair cables and is designed to operate with very low
supply current, typically less than 2 mA, exclusive of
the load. When the device is in the inactive shutdown
mode, the supply current drops below 1 mA.
The wide common-mode range and high ESD
protection levels of this device make it suitable for
demanding applications such as: electrical inverters,
status/command signals across telecom racks,
cabled chassis interconnects, and industrial
automation networks where noise tolerance is
essential. The SN65HVD485E device matches the
industry-standard footprint of the SN75176 device.
Power-on reset circuits keep the outputs in a high-
impedance state until the supply voltage has
stabilized. A thermal-shutdown function protects the
device from damage due to system-fault conditions.
The SN65HVD485E device is characterized for
operation from –40°C to 85°C air temperature.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
SOIC (8)
4.91 mm × 3.90 mm
SN65HVD485E
VSSOP (8)
3.00 mm × 3.00 mm
PDIP (8)
9.81 mm × 6.35 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Schematic
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DD
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B RT
AB
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RT B
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RE
DE
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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.

SN65HVD485E Datasheet
SN65HVD485E
SLLS612E – JUNE 2004 – REVISED DECEMBER 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Comparison Table..................................... 3
6 Pin Configuration and Functions ......................... 3
7 Specifications......................................................... 4
7.1 Absolute Maximum Ratings ...................................... 4
7.2 ESD Ratings.............................................................. 4
7.3 Recommended Operating Conditions ...................... 4
7.4 Thermal Information .................................................. 5
7.5 Electrical Characteristics: Driver ............................... 5
7.6 Electrical Characteristics: Receiver .......................... 5
7.7 Power Dissipation Characteristics ............................ 6
7.8 Supply Current .......................................................... 6
7.9 Switching Characteristics: Driver .............................. 6
7.10 Switching Characteristics: Receiver........................ 6
7.11 Dissipation Ratings ................................................. 7
7.12 Typical Characteristics ............................................ 7
8 Parameter Measurement Information .................. 8
9 Detailed Description ............................................ 12
9.1 Overview ................................................................. 12
9.2 Functional Block Diagram ....................................... 12
9.3 Feature Description................................................. 12
9.4 Device Functional Modes........................................ 12
10 Application and Implementation........................ 14
10.1 Application Information.......................................... 14
10.2 Typical Application ............................................... 14
11 Power Supply Recommendations ..................... 18
12 Layout................................................................... 18
12.1 Layout Guidelines ................................................. 18
12.2 Layout Example .................................................... 18
13 Device and Documentation Support ................. 19
13.1 Device Support...................................................... 19
13.2 Documentation Support ........................................ 20
13.3 Community Resources.......................................... 20
13.4 Trademarks ........................................................... 20
13.5 Electrostatic Discharge Caution ............................ 20
13.6 Glossary ................................................................ 20
14 Mechanical, Packaging, and Orderable
Information ........................................................... 20
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision D (July 2015) to Revision E
Page
• Changed 3.3 V To: 5 V at pin VCC in Figure 20 ................................................................................................................... 16
Changes from Revision C (March 2007) to Revision D
Page
• Added Pin Configuration and Functions section, 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
• Deleted Ordering Information table ....................................................................................................................................... 1
• Changed Thermal Information table ...................................................................................................................................... 5
• Added Power Dissipation Characteristics table...................................................................................................................... 6
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Copyright © 2004–2015, Texas Instruments Incorporated
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Features Datasheet pdf Product Folder Sample & Buy Technical Documents Tools & Software Support & Community SN65HVD485E SLLS612E – JUN E 2004 – REVISED DECEMBER 2015 SN65HV D485E Half-Duplex RS-485 Transceiver 1 Features •1 Bus-Pin ESD Protection u p to 15 kV • 1/2 Unit Load: up to 64 Nodes on a Bus • Bus-Open-Failsafe Re ceiver • Glitch-Free Power-Up and Pow er-Down Bus Inputs and Outputs • Avai lable in Small VSSOP-8 Package • Meet s or Exceeds the Requirements of the TI A/EIA-485A Standard • Industry-Standa rd SN75176 Footprint 2 Applications • Motor Control • Power Inverters • Industrial Automation • Building Auto mation Networks • Industrial Process Control • Battery-Powered Application s • Telecommunications Equipment 3 D escription The SN65HVD485E device is a half-duplex transceiver designed for RS -485 data bus networks. Powered by a 5- V supply, it is fully compliant with th e TIA/EIA-485A standard. This device is suitable for data transmission up to 10 Mbps over long twistedpair cables and is designed to o.
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