SN65HVD78DRIn StockTexas Instruments
SN65HVD78DR is a single-channel RS-485/RS-422 line transceiver IC from Texas Instruments, featuring differential Schmitt trigger inputs, EIA-485 and EIA-422 interface standard support, and 1/8 unit load design for up to 256 nodes per bus. From $0.80 in stock, worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- SN65HVD78DR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.8001(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Single-channel full-duplex RS-485/RS-422 line transceiver supporting EIA-485 and EIA-422 standards
- Differential Schmitt trigger input for improved noise immunity in industrial environments
- 1/8 unit load allows up to 256 nodes on a single bus
- Available in compact SO-8 (Small Outline) surface-mount package
- Wide supply voltage range suitable for 3.3V and 5V systems
Applications
The SN65HVD78DR is widely used in industrial automation and process control systems where reliable long-distance serial communication is required over RS-485 networks. It is well-suited for building automation, motor drive interfaces, and multi-drop bus architectures connecting PLCs, sensors, and HMI panels. Its robust differential signaling makes it ideal for noise-sensitive environments such as factory floors and smart grid equipment.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Differential Output | YES |
| Driver Number of Bits | 1 |
| Input Characteristics | DIFFERENTIAL SCHMITT TRIGGER |
| Interface IC Type | LINE TRANSCEIVER |
| Interface Standard | EIA-422; EIA-485 |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Out Swing-Min | 1.5V |
| 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 | 0.95mA |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 3.3V |
| Supply Voltage1-Max | 3.6V |
| Supply Voltage1-Min | 3V |
| Supply Voltage1-Nom | 3.3V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Transmit Delay-Max | 15ns |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What interface standards does the SN65HVD78DR support?
The SN65HVD78DR supports both EIA-485 (RS-485) and EIA-422 (RS-422) interface standards, enabling half-duplex or full-duplex serial communication over twisted-pair cables at data rates up to 10 Mbps.
How many nodes can be connected on a single RS-485 bus using the SN65HVD78DR?
Thanks to its 1/8 unit load design, the SN65HVD78DR allows up to 256 nodes to be connected on a single RS-485 bus, making it ideal for large multi-drop network installations in industrial and building automation applications.
What package type is the SN65HVD78DR available in?
The SN65HVD78DR comes in an SO-8 (8-pin Small Outline) surface-mount package (SOIC-8), which is compact and suitable for space-constrained PCB designs in industrial and commercial equipment.
Can I use the SN65HVD78DR as a direct replacement for other RS-485 transceivers?
The SN65HVD78DR is pin-compatible with many industry-standard single-channel RS-485 transceivers in SO-8 packages, such as the MAX485 and SN75HVD78. Always verify supply voltage, speed, and driver characteristics before substituting in your design.
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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 |
|---|---|---|
| 1+ | $3.9060 | $3.91 |
| 27+ | $2.6040 | $70.31 |
| 97+ | $2.4087 | $233.64 |
| 235+ | $0.8651 | $203.30 |
| 305+ | $0.8326 | $253.94 |
| 375+ | $0.8001 | $300.04 |
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