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Texas Instruments SN65HVD75DR
- Part No.:
- SN65HVD75DR
- Manufacturer:
- Texas Instruments
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SN65HVD75DR.pdf
- Description:
- IC TRANSCEIVER HALF 1/1 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:5,510
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Product details
Overview
SN65HVD75DR from Texas Instruments is a 3.3-V supply, half-duplex RS-485 transceiver with IEC 61000-4-2 ±12 kV contact ESD protection, 20 Mbps signaling rate, and 80 mV receiver hysteresis for noise rejection in industrial bus systems. It integrates driver and receiver in a single SOIC-8 package and operates across –40°C to 125°C.
For engineers reviewing the SN65HVD75DR datasheet, SN65HVD75DR pinout, SN65HVD75DR application, or SN65HVD75DR equivalent, this page delivers verified electrical specs, thermal metrics, functional mode behavior, real-world ESD robustness data, and precise substitution guidance for factory automation, motion control, and telecom infrastructure designs.
Technical Context
The SN65HVD75DR implements a half-duplex RS-485 interface with active-high driver enable (DE) and active-low receiver enable (RE), enabling precise bus direction control. Its differential driver outputs (A/B) and receiver inputs share the same bus terminals, supporting multi-point networks over long cables via a wide –7 V to 12 V common-mode input range.
It features glitch-free power-up/power-down behavior on bus I/Os, thermal shutdown at 170°C junction temperature, and low quiescent current (<2 µA standby, <1 mA operating). The device supports 5-V-tolerant logic inputs (D, DE, RE), allowing direct interfacing with 3.3-V or 5-V controllers without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Signaling Rate | Up to 20 Mbps - enables high-speed industrial fieldbus communication with bit time ≥50 ns |
| Supply Voltage | 3.0 V to 3.6 V - optimized for modern 3.3-V systems; absolute max 5 V avoids overvoltage damage |
| Differential Output Voltage | 1.5 V to 2.0 V (RL = 54 Ω) - meets RS-485 standard minimum of 1.5 V for reliable bus driving |
| Receiver Hysteresis | 80 mV - improves noise immunity in electrically noisy factory environments |
| ESD Protection | ±12 kV IEC 61000-4-2 contact discharge - sustains repeated handling and system-level ESD events |
| Operating Temperature | –40°C to 125°C - qualified for extended industrial and under-hood automotive applications |
| Quiescent Supply Current | <1 mA - reduces power budget impact in always-on or battery-backed bus nodes |
Pinout & Package
SN65HVD75DR is packaged in an 8-pin SOIC (D package), 4.91 mm × 3.90 mm body size, with gull-wing leads suitable for automated PCB assembly and reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (R) | Receiver output | Digital logic-level output reflecting bus state; open-drain compatible with 3.3-V/5-V hosts |
| 2 (RE) | Active-low receiver enable | Disables receiver output (high-Z) when high; critical for bus arbitration in multi-node systems |
| 3 (DE) | Active-high driver enable | Enables differential driver output (A/B) when high; must be synchronized with RE for half-duplex control |
| 4 (D) | Driver data input | Logic input controlling driver polarity; non-inverting path from D to A/B outputs |
| 5 (GND) | Local ground reference | Return path for internal circuitry; requires low-impedance connection to system ground plane |
| 6 (A) | Bus I/O (inverting) | Differential bus terminal; complementary to B; defines bus polarity per RS-485 standard |
| 7 (B) | Bus I/O (non-inverting) | Differential bus terminal; complementary to A; connects directly to twisted-pair cable |
| 8 (VCC) | 3.3-V power supply | Must be decoupled with ≥100 nF ceramic capacitor near pin; tolerates 5-V transient per abs max rating |
Key Features
| Feature | Design Value |
|---|---|
| IEC 61000-4-2 ±12 kV contact ESD protection | Eliminates need for external TVS diodes on A/B lines in most industrial enclosures |
| Glitch-free power-up/power-down | Prevents bus contention or false edges during power sequencing in hot-swap or brownout scenarios |
| 80 mV receiver hysteresis | Rejects common-mode noise up to 80 mV without false triggering-critical for long-cable motor drives |
| Low standby current (<2 µA) | Enables ultra-low-power wake-on-bus designs in energy-constrained edge nodes |
| 5-V-tolerant logic inputs | Supports mixed-voltage systems without external level shifters for DE/RE/D control signals |
Applications
| Factory Automation | Telecommunications Infrastructure |
|---|---|
|
Use Scenario: PLC-to-I/O-module communication over 100+ meter shielded twisted pair in manufacturing cells. IC Role / Device Role / Timing Role: Half-duplex RS-485 transceiver managing bidirectional command/data exchange between controller and remote sensors/actuators. Use Value: 20 Mbps rate supports real-time motion profiling; ±12 kV ESD withstand prevents downtime from electrostatic discharge in dry production environments. |
Use Scenario: Backplane interconnect between line cards and management modules in carrier-grade base station cabinets. IC Role / Device Role / Timing Role: Robust physical-layer interface ensuring deterministic latency and error-free packet delivery across noisy RF-dense chassis. Use Value: 80 mV hysteresis rejects switching noise from adjacent DC-DC converters; –40°C to 125°C rating ensures reliability in uncooled outdoor enclosures. |
| Motion Control | Industrial IoT Gateway |
|
Use Scenario: Synchronized servo drive communication in CNC machines using daisy-chained RS-485 networks. IC Role / Device Role / Timing Role: Bus node transceiver providing galvanically isolated, high-integrity data transport between master controller and distributed axis drives. Use Value: Low propagation delay skew (<2 ns) maintains timing alignment across axes; thermal shutdown (170°C) protects against overheating during continuous torque demand. |
Use Scenario: Edge gateway aggregating sensor data from legacy RS-485 field devices before forwarding to cloud via Ethernet/Wi-Fi. IC Role / Device Role / Timing Role: Protocol-agnostic physical layer translator enabling interoperability between Modbus RTU field devices and modern IP networks. Use Value: 213-node bus loading capacity allows scalable deployment across large facilities; low quiescent current extends battery life in portable diagnostic tools. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RS-485 transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN65HVD72DR | 250 kbps max rate, higher bus input current (150 µA at VI = 12 V), identical pinout and package | Better suited for low-speed, high-noise environments where ESD robustness matters more than speed | Select SN65HVD72DR only if signaling rate ≤250 kbps suffices and lower dynamic power is prioritized |
| SN65HVD78DR | 50 Mbps max rate, tighter propagation delay skew (1 ns), higher ICC (230 mW at 50 Mbps) | Required for ultra-low-latency deterministic networks like TSN or high-bandwidth video-over-RS-485 | Choose SN65HVD78DR when >20 Mbps throughput is mandatory and thermal design accommodates higher dissipation |
Compared with SN65HVD72DR and SN65HVD78DR, the SN65HVD75DR delivers optimal balance of speed (20 Mbps), power efficiency (<1 mA ICC), and noise immunity (80 mV hysteresis), making it the preferred choice for mainstream industrial automation where cost, performance, and reliability intersect.
Availability
SN65HVD75DR is available at Aetrix Electronics and suitable for factory automation, motion control, and telecommunications infrastructure requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for SN65HVD75DR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity solutions for industrial, automotive, and communications markets.
The SN65HVD7x family was designed specifically for rugged RS-485 communication in harsh industrial environments, emphasizing ESD resilience, wide temperature operation, and interoperability with legacy and next-generation fieldbus systems.
FAQ
What is the maximum signaling rate supported by the SN65HVD75DR?
The SN65HVD75DR supports a maximum signaling rate of 20 Mbps, with guaranteed bit time ≥50 ns under recommended operating conditions (VCC = 3.0 V to 3.6 V, RL = 54 Ω, CL = 50 pF). This rate is validated per TI's SLLSE11H datasheet Section 7.8 and enables high-throughput industrial protocols such as PROFIBUS DP or custom deterministic messaging stacks. The SN65HVD75DR achieves this while maintaining <2 ns pulse skew and sub-20 ns propagation delay.
Does the SN65HVD75DR require external ESD protection components?
No, the SN65HVD75DR does not require external ESD protection on its A and B bus pins due to integrated ±12 kV IEC 61000-4-2 contact discharge and ±15 kV HBM protection. These ratings are verified per TI's characterization and eliminate the need for discrete TVS diodes in most industrial enclosures. However, system-level surge protection (e.g., IEC 61000-4-5) remains the responsibility of the board designer and is not covered by the SN65HVD75DR's on-die protection.
Can the SN65HVD75DR operate with a 5-V logic controller?
Yes, the SN65HVD75DR supports 5-V-tolerant logic inputs (D, DE, RE), meaning it accepts 0 V to 5 V voltage levels on those pins while powered from a 3.3-V VCC supply. This capability is explicitly specified in Section 7.3 of the datasheet and allows direct connection to 5-V microcontrollers or FPGAs without level-shifting circuitry-reducing BOM count and layout complexity in mixed-voltage systems.
What is the thermal shutdown threshold for the SN65HVD75DR?
The SN65HVD75DR incorporates thermal shutdown circuitry that disables the driver outputs when the junction temperature reaches 170°C, as confirmed in Section 7.5 (TTSD parameter) of the datasheet. This feature protects the device from permanent damage during sustained overload or poor heatsinking. Recovery occurs automatically once TJ falls below ~155°C hysteresis, and the device resumes normal operation without requiring reset.
How many nodes can be connected to a single SN65HVD75DR bus segment?
The SN65HVD75DR supports up to 200+ unit loads on a single RS-485 bus segment, as stated in the "Low Unit-Loading" feature and confirmed by its 1/8-unit-load specification (≤1 mA bus input current in disabled state). In practice, TI's Device Comparison Table lists 213 nodes for the SN65HVD72 variant, and the SN65HVD75DR shares identical bus I/O architecture and loading characteristics-making it suitable for large-scale distributed I/O networks without repeaters.
SN65HVD75DR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Transceiver
- Protocol:
- RS422, RS485
- Number of Drivers/Receivers:
- 1/1
- Duplex:
- Half
- Receiver Hysteresis:
- 80 mV
- Data Rate:
- 20Mbps
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
SN65HVD75DR FAQ
1.How can I place an order for SN65HVD75DR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN65HVD75DR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SN65HVD75DR reliable?
The price and inventory of SN65HVD75DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN65HVD75DR is usually 5 days.
3.What payment methods are accepted for SN65HVD75DR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN65HVD75DR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN65HVD75DR?
SN65HVD75DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN65HVD75DR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SN65HVD75DR?
For technical support, including SN65HVD75DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN65HVD75DR requirements.
6.How does Aetrix verify that SN65HVD75DR is sourced from the original manufacturer or authorized distributors?
All SN65HVD75DR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SN65HVD75DR meets industry standards.
7.What is the process for return or replacement of SN65HVD75DR?
All SN65HVD75DR units undergo pre-shipment inspection (PSI). If there is an issue with SN65HVD75DR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SN65HVD75DR part is unused and in its original packaging.
Return procedure for SN65HVD75DR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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