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
Key Features
- 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
Applications
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.
Specifications
| 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 |
Alternate & Equivalent Parts
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.
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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.
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