THVD1439VDR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
THVD1439VDR is a high-speed RS-485 line transceiver IC by Texas Instruments. Key specs: 40 Mbps data rate, operates from 3.3 V to 5 V supply, EIA/TIA-485-A compliant, differential Schmitt trigger inputs, SOIC-8 package. From $0.90 in stock, worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- THVD1439VDR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.4489(MOQ 100)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 40 Mbps high-speed RS-485/RS-422 differential transceiver supporting full-duplex and half-duplex communication
- Wide supply voltage range of 3.3 V to 5 V with differential Schmitt trigger inputs for superior noise immunity
- EIA-485-A and TIA-485-A compliant, enabling direct replacement in standard RS-485 bus systems
- SOIC-8 small-outline package (R-PDSO-G8) enables compact PCB layouts with low pin count
Applications
THVD1439VDR is designed for robust industrial RS-485 communication buses, including PLCs, motor drives, and building automation networks. Its high-speed 40 Mbps data rate and differential signaling make it suitable for long-cable factory floor data links and SCADA systems. The device also fits RS-422 point-to-point links in test equipment and instrumentation requiring reliable, noise-immune serial communication.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Differential Output | YES |
| Driver Number of Bits | 1 |
| High Level Input Current-Max | 0.000005A |
| 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 | 1.5V |
| Output Characteristics | DIFFERENTIAL |
| 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 |
| Receive Delay-Max | 110ns |
| Receiver Number of Bits | 1 |
| Supply Current-Max | 5mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 3.6V |
| Supply Voltage1-Max | 5.5V |
| Supply Voltage1-Min | 3V |
| Supply Voltage1-Nom | 3.3V |
| Surface Mount | YES |
| Technology | BICMOS |
| Terminal Finish | Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Transmit Delay-Max | 650ns |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum data rate supported by THVD1439VDR on an RS-485 bus?
THVD1439VDR supports a maximum data rate of 40 Mbps, making it suitable for high-speed RS-485 and RS-422 serial communication links where throughput up to 40 Mbps is required over twisted-pair cables.
Which supply voltage range does THVD1439VDR operate within, and what does that mean for mixed-voltage systems?
THVD1439VDR operates from a 3.3 V to 5 V supply rail, allowing it to interface directly with both 3.3 V logic microcontrollers and legacy 5 V systems without additional level-shifting components, simplifying mixed-voltage board designs.
How many RS-485 bus nodes can THVD1439VDR drive in a typical half-duplex network?
THVD1439VDR, as an EIA-485-A compliant transceiver, can address up to 32 unit loads (approximately 32 standard receivers) on a single RS-485 bus segment, with a minimum differential output voltage of 1.5 V ensuring reliable signaling at all nodes.
When would an engineer choose THVD1439VDR over a slower RS-485 transceiver for an industrial automation project?
An engineer selects THVD1439VDR when the application demands 40 Mbps data throughput—such as real-time servo drive feedback loops or high-resolution sensor streaming—where lower-speed 10 Mbps transceivers create latency bottlenecks on the 485 bus.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $2.8203 | $282.03 |
| 250+ | $2.6787 | $669.68 |
| 500+ | $2.6744 | $1337.22 |
| 2500+ | $2.4489 | $6122.25 |
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