SN65HVD20DG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN65HVD20DG4 is a single-channel RS-485/RS-422 transceiver IC from Texas Instruments with differential Schmitt trigger input and extended common-mode range. It supports data rates up to 10 Mbps, operates from a 3.3 V supply, and features fail-safe open-circuit, short-circuit, and terminated-line receiver outputs. Available from stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- SN65HVD20DG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN65HVD20DG4?
- Extended common-mode input voltage range of -7 V to +12 V ensures robust noise immunity in harsh industrial environments
- Differential Schmitt trigger receiver inputs provide hysteresis for improved noise rejection
- Fail-safe receiver outputs remain high for open-circuit, short-circuit, and terminated-line conditions
- Supports data rates up to 10 Mbps for high-speed RS-485/RS-422 communication
- 3.3 V supply operation with 5 V tolerant I/O for easy mixed-voltage system integration
What is SN65HVD20DG4 used for?
The SN65HVD20DG4 is widely used in industrial automation systems where robust RS-485 multi-drop networks connect PLCs, sensors, and actuators over long cable runs in electrically noisy environments. It is also deployed in building automation, motor drive control, and process control systems that require reliable half-duplex serial communication. Additionally, it suits RS-422 point-to-point links in medical equipment, instrumentation, and factory floor networks.
What are the specifications of SN65HVD20DG4?
| YTEOL | 0 |
| Differential Output | YES |
| Driver Number of Bits | 1 |
| High Level Input Current-Max | 0.0001A |
| 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 |
| Number of Functions | 1 |
| Out Swing-Min | 1.8V |
| Output Characteristics | 3-STATE |
| Output Low Current-Max | 0.008A |
| Output Polarity | COMPLEMENTARY |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Receive Delay-Max | 35ns |
| Receiver Number of Bits | 1 |
| Supply Current-Max | 9mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 4.5V |
| Supply Voltage-Nom | 5V |
| Supply Voltage1-Max | 5.5V |
| Supply Voltage1-Min | 4.5V |
| Supply Voltage1-Nom | 5V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Transmit Delay-Max | 20ns |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the SN65HVD20DG4 datasheet?
SN65HVD20DG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN65HVD20DG4?
Compatible alternatives and drop-in replacements for SN65HVD20DG4:
Frequently Asked Questions
What is the maximum data rate supported by the SN65HVD20DG4?
The SN65HVD20DG4 supports data rates up to 10 Mbps, making it suitable for high-speed RS-485 and RS-422 communication applications. The actual achievable rate depends on cable length, termination, and bus loading conditions.
What supply voltage does the SN65HVD20DG4 require, and is it 5 V tolerant?
The SN65HVD20DG4 operates from a 3.3 V supply rail and features 5 V tolerant logic inputs and outputs, allowing seamless interfacing with both 3.3 V and 5 V microcontrollers and FPGAs without level-shifting circuitry.
What package does the SN65HVD20DG4 use, and how many pins does it have?
The SN65HVD20DG4 comes in an 8-pin SOIC (Small Outline IC) package, designated by the 'D' suffix in the part number. The 'G4' suffix indicates the component meets RoHS green requirements and is lead-free.
What is the common-mode voltage range of the SN65HVD20DG4 receiver?
The receiver accepts a common-mode input voltage range of -7 V to +12 V, which extends beyond the standard RS-485 specification. This wide range helps the device tolerate ground potential differences between nodes in large industrial networks.
Can the SN65HVD20DG4 replace other RS-485 transceivers such as the MAX485?
The SN65HVD20DG4 is functionally compatible with many industry-standard RS-485 transceivers including the MAX485 in 3.3 V systems. Users should verify supply voltage, ESD ratings, and slew-rate specifications before substitution to ensure signal integrity is maintained.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit