Datasheets
SN65HVD21ADR by: Texas Instruments

Extended Common-Mode RS-485 Transceiver 8-SOIC -40 to 85

Part Details for SN65HVD21ADR by Texas Instruments

Results Overview of SN65HVD21ADR by Texas Instruments

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Applications Automotive

SN65HVD21ADR Information

SN65HVD21ADR by Texas Instruments is a Line Driver or Receiver.
Line Driver or Receivers are under the broader part category of Drivers And Interfaces.

A driver controls the current or voltage delivered to components like LCDs or motors, while an interface component connects systems for data transfer and control. Read more about Drivers And Interfaces on our Drivers And Interfaces part category page.

Part Details for SN65HVD21ADR

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SN65HVD21ADR Part Data Attributes

SN65HVD21ADR Texas Instruments
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SN65HVD21ADR Texas Instruments Extended Common-Mode RS-485 Transceiver 8-SOIC -40 to 85
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Obsolete
Ihs Manufacturer TEXAS INSTRUMENTS INC
Part Package Code SOIC
Package Description GREEN, PLASTIC, MS-012AA, SOIC-8
Pin Count 8
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Differential Output YES
Driver Number of Bits 1
Input Characteristics DIFFERENTIAL SCHMITT TRIGGER
Interface IC Type LINE TRANSCEIVER
Interface Standard EIA-485-A; TIA-485-A
JESD-30 Code R-PDSO-G8
JESD-609 Code e4
Length 4.9 mm
Moisture Sensitivity Level 1
Number of Functions 1
Number of Terminals 8
Operating Temperature-Max 85 °C
Operating Temperature-Min -40 °C
Out Swing-Min 1.8 V
Output Characteristics 3-STATE
Output Low Current-Max 0.008 A
Output Polarity TRUE
Package Body Material PLASTIC/EPOXY
Package Code SOP
Package Equivalence Code SOP8,.25
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
Receive Delay-Max 50 ns
Receiver Number of Bits 1
Seated Height-Max 1.75 mm
Supply Current-Max 12 mA
Supply Voltage-Max 5.5 V
Supply Voltage-Min 4.5 V
Supply Voltage-Nom 5 V
Supply Voltage1-Max 5.5 V
Supply Voltage1-Min 4.5 V
Supply Voltage1-Nom 5 V
Surface Mount YES
Temperature Grade INDUSTRIAL
Terminal Finish NICKEL PALLADIUM GOLD
Terminal Form GULL WING
Terminal Pitch 1.27 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) 30
Transmit Delay-Max 60 ns
Width 3.9 mm

Alternate Parts for SN65HVD21ADR

This table gives cross-reference parts and alternative options found for SN65HVD21ADR. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of SN65HVD21ADR, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
SN65HVD21AD Texas Instruments $2.2706 Extended Common-Mode RS-485 Transceiver 8-SOIC -40 to 85 SN65HVD21ADR vs SN65HVD21AD

SN65HVD21ADR Related Parts

SN65HVD21ADR Frequently Asked Questions (FAQ)

  • The maximum cable length supported by the SN65HVD21ADR is dependent on the baud rate and the type of cable used. As a general rule, the maximum cable length is around 100 meters at 9600 bps, but it can be up to 1000 meters at lower baud rates. However, it's recommended to consult the application notes and perform testing to determine the maximum cable length for a specific use case.

  • Yes, the SN65HVD21ADR can be used in a multi-point configuration, but it requires additional circuitry and careful design consideration. The device can be connected to multiple nodes, but each node must have its own termination resistor and the total bus capacitance must be within the recommended limits.

  • To ensure EMC with the SN65HVD21ADR, it's recommended to follow proper PCB layout and design guidelines, such as keeping the transmitter and receiver lines as short as possible, using a common-mode choke, and providing adequate shielding and grounding. Additionally, the device should be placed in a shielded enclosure and the cables should be properly terminated.

  • The maximum operating temperature range for the SN65HVD21ADR is -40°C to 125°C. However, the device's performance and reliability may be affected at extreme temperatures, so it's recommended to consult the datasheet and application notes for specific temperature-related considerations.

  • Yes, the SN65HVD21ADR can be used in a redundant or fault-tolerant system, but it requires additional circuitry and design consideration. The device can be connected to multiple transceivers or nodes, and the system can be designed to automatically switch to a backup node in case of a failure.

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