SN65HVD11 - 3.3V RS-485 Transceiver | Texas Instruments
MPN: SN65HVD11 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.65 | $16.50 |
| 100 | $1.35 | $135.00 |
| 500 | $1.15 | $575.00 |
| 1,000 | $0.95 | $950.00 |
Drop-in alternatives for SN65HVD11 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
SN65HVD12D
β Drop-Inπ Reference alternative (not in catalog)
SN75HVD11D
β Drop-Inπ Reference alternative (not in catalog)
SN65HVD11QD
β Drop-Inπ Reference alternative (not in catalog)
ISO1042D
β Drop-Inπ Reference alternative (not in catalog)
MAX3485ESA
β Drop-Inπ Reference alternative (not in catalog)
ADM3485EARZ
β Drop-Inπ Reference alternative (not in catalog)
SN65HVD11 Maximum Ratings & Electrical Characteristics
| Supply Voltage | 3.3 V (3.0 V to 3.6 V) |
| Data Rate | 10 Mbps |
| Number of Drivers | 1 |
| Number of Receivers | 1 |
| Duplex | Half |
| Bus-Pin ESD Protection | 16 kV HBM |
| Unit Load | 1/8 (up to 256 nodes) |
| Common-Mode Input Range | -7 V to +12 V |
| Receiver Sensitivity | Β±200 mV |
| Driver Output Voltage | 1.5 V min (54-ohm load) |
| Quiescent Current | 1.1 mA typical |
| Operating Temperature | -40Β°C to +85Β°C |
| Package | 8-SOIC (D) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Standards | TIA/EIA-485-A, ISO 8482:1993 |
SN65HVD11 Pin Configuration
| Pin 1 | RO β Receiver output |
| Pin 2 | RE β Receiver enable (active low) |
| Pin 3 | DE β Driver enable (active high) |
| Pin 4 | D β Driver input |
| Pin 5 | GND β Ground |
| Pin 6 | A β Non-inverting bus line |
| Pin 7 | B β Inverting bus line |
| Pin 8 | VCC β Power supply (3.3V) |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
SN65HVD11 is suitable for 6 applications: Industrial Automation, Building Automation, Motor Control, Point-of-Sale Terminals, Data Acquisition Systems, Telecommunication Infrastructure.
Industrial Automation
The SN65HVD11 is ideal for industrial automation networks where reliable communication over long distances is critical. Its 10 Mbps data rate and 1/8 unit-load support up to 256 nodes, enabling large-scale factory floor monitoring and control. The wide common-mode range of -7V to +12V ensures robust operation in noisy environments with ground potential differences. The device's 16 kV HBM ESD protection safeguards against electrostatic discharge during installation and maintenance, reducing downtime and improving system reliability.
Recommended
Building Automation
In building automation systems, the SN65HVD11 provides a cost-effective solution for HVAC control, lighting, and access control networks. Its 3.3-V operation reduces power consumption, while the 1/8 unit-load allows up to 256 devices on a single bus, simplifying wiring and reducing installation costs. The device's high ESD protection and wide common-mode range ensure reliable operation in commercial buildings where electrical noise from HVAC equipment and lighting is prevalent. The 8-SOIC package is compact and suitable for space-constrained controllers.
Recommended
Motor Control
The SN65HVD11 is used in motor control systems to communicate between the central controller and remote drives. Its high data rate of 10 Mbps supports real-time control commands, while the robust differential signaling ensures immunity to electromagnetic interference from motor currents. The device's thermal shutdown protection prevents damage during fault conditions, and the wide common-mode range accommodates ground shifts in industrial environments. The 3.3-V supply is compatible with modern MCUs and DSPs used in motor control.
Recommended
Point-of-Sale Terminals
The SN65HVD11 is suitable for point-of-sale (POS) terminals that require reliable communication with peripheral devices such as barcode scanners and receipt printers. Its 3.3-V operation aligns with low-power POS system designs, and the 10 Mbps data rate supports fast transaction processing. The device's small 8-SOIC package saves board space, and its high ESD protection ensures durability in high-traffic retail environments. The half-duplex operation is sufficient for most POS communication protocols.
Recommended
Data Acquisition Systems
In data acquisition systems, the SN65HVD11 enables communication between remote sensors and a central data logger. Its 1/8 unit-load allows many sensors to share a single bus, reducing wiring complexity. The device's wide common-mode range and high ESD protection ensure reliable data transmission in harsh industrial environments. The 10 Mbps data rate is sufficient for high-speed sampling, and the 3.3-V supply is compatible with battery-powered data loggers. The half-duplex operation is adequate for most sensor polling protocols.
Recommended
Telecommunication Infrastructure
The SN65HVD11 is used in telecommunication infrastructure for communication between base station components and network management systems. Its high data rate and robust differential signaling ensure reliable data transfer over long cable runs. The device's 3.3-V operation is compatible with modern telecom power supplies, and its wide common-mode range handles ground potential differences between equipment. The 16 kV ESD protection is critical for outdoor installations where lightning-induced surges are a concern.
Recommended
Recommended Products Summary
Engineering reference data for SN65HVD11 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | SN65HVD12D | SN75HVD11D | ISO1042D | MAX3485ESA |
|---|---|---|---|---|---|
| Package | 8-SOIC (D) | 8-SOIC (D) | 8-SOIC (D) | 8-SOIC (D) | 8-SOIC (D) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Analog Devices |
| Data Rate | 10 Mbps | 20 Mbps | 10 Mbps | 1 Mbps | 10 Mbps |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| ESD Protection | 16 kV HBM | 16 kV HBM | 16 kV HBM | 16 kV HBM | 15 kV HBM |
| Unit Load | 1/8 | 1/8 | 1/8 | 1/8 | 1/8 |
| Common-Mode Range | -7V to +12V | -7V to +12V | -7V to +12V | -12V to +12V | -7V to +12V |
| Isolation | No | No | No | Yes (5 kVrms) | No |
Key Differentiators
- Higher data rate than ISO1042 (vs ISO1042D)
- Lower cost than isolated alternatives (vs ISO1042D)
- Pin-compatible with MAX3485 (vs MAX3485ESA)
Design Notes
Place the SN65HVD11 close to the bus connector to minimize stub length. Use 120-ohm termination resistors at both ends of the bus to prevent signal reflections. Keep the differential traces (A and B) close together and at equal length to maintain signal integrity. A ground plane under the device is recommended to reduce noise.
Decouple the VCC pin with a 0.1 uF ceramic capacitor placed as close as possible to the pin. For noisy industrial environments, add a 10 uF electrolytic capacitor in parallel. The SN65HVD11 operates from 3.3V, and the supply should be stable within 3.0V to 3.6V to ensure proper operation.
Ensure the DE and RE pins are not left floating. Tie RE low and DE high for always-enabled operation, or use a control signal to switch between transmit and receive. Do not exceed the absolute maximum ratings of -0.5V to +4.6V on logic pins. For long cable runs, use proper termination and biasing to maintain a defined idle state.
Compliance Information
RoHS compliant per TI product page. AEC-Q100 qualified variant available as SN65HVD11QD.
