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
What are the key features of THVD1439VDR?
- 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
What is THVD1439VDR used for?
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.
What are the specifications of THVD1439VDR?
| 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 |
Where can I find the THVD1439VDR datasheet?
THVD1439VDR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for THVD1439VDR?
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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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
| 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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