SN65LBC176DG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
SN65LBC176DG4 is a differential RS-485/RS-422 line transceiver IC in an 8-pin SOIC package, operating from a 5 V supply over -40°C to 85°C. It integrates one driver and one receiver with a differential Schmitt-trigger input and tri-state capability for half-duplex bus sharing. Designed for industrial communication networks, process control, and multi-drop serial data links.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- SN65LBC176DG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- RS-485/RS-422 differential line transceiver
- 5 V single-supply operation
- Differential Schmitt-trigger receiver input
- Tri-state receiver output for half-duplex bus
- -40°C to 85°C industrial temperature range
- 8-pin SOIC space-saving package
Applications
The SN65LBC176DG4 is used in industrial RS-485 multi-drop networks for process control, building automation, and SCADA systems requiring reliable differential data transmission over long cable runs. Its Schmitt-trigger receiver tolerates signal noise on bus lines up to 1200 m in length, enabling robust 2-wire half-duplex communication. It is also suitable for PLC and instrumentation interfaces where multiple nodes share a common RS-485 bus at data rates up to 10 Mbps.
Specifications
| YTEOL | 0 |
| Additional Feature | COMMON I/O: TRISTATABLE RECEIVER; 1 RECEIVER ACTIVE UNDER SHUTDOWN |
| Differential Output | YES |
| Driver Number of Bits | 1 |
| High Level Input Current-Max | 0.0001A |
| Input Characteristics | DIFFERENTIAL SCHMITT TRIGGER |
| Interface IC Type | LINE TRANSCEIVER |
| Interface Standard | EIA-485-A; TIA-485-A; ISO 8482 |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Out Swing-Min | 1.1V |
| 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 | 33ns |
| Receiver Number of Bits | 1 |
| Supply Current-Max | 3.9mA |
| Supply Voltage-Max | 5.25V |
| Supply Voltage-Min | 4.75V |
| Supply Voltage-Nom | 5V |
| Supply Voltage1-Max | 5.25V |
| Supply Voltage1-Min | 4.75V |
| Supply Voltage1-Nom | 5V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Transmit Delay-Max | 25ns |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN65LBC176DG4:
Frequently Asked Questions
At what data rate can the SN65LBC176DG4 transmit data over an RS-485 bus?
The SN65LBC176DG4 supports RS-485 data transmission at rates up to 10 Mbps under standard loading conditions. At reduced cable lengths, the driver output swing of at least 1.5 V differential ensures reliable signal integrity even in noisy industrial environments with multiple nodes on the same 2-wire bus.
How many nodes can share an RS-485 bus driven by the SN65LBC176DG4?
The SN65LBC176DG4 conforms to the RS-485 and ISO 8482 standards, which allow up to 32 unit loads per bus segment. Its receiver input impedance of 12 kΩ (1 unit load) means up to 32 transceivers can coexist on a single RS-485 network segment operating from 5 V supply.
Does the SN65LBC176DG4 support half-duplex operation for two-wire RS-485 networks?
Yes, the SN65LBC176DG4 provides a tri-state receiver output and direction-controlled driver enable, supporting half-duplex operation on 2-wire RS-485 networks. The receiver remains active under driver shutdown mode, allowing the device to monitor bus activity at up to 10 Mbps without requiring additional bus arbitration components.
Which package does the SN65LBC176DG4 come in and how does this affect PCB layout?
The SN65LBC176DG4 is available in an 8-pin SOIC package with 1.27 mm pin pitch, requiring approximately 30 mm² of PCB area. This compact footprint simplifies placement near RS-485 connectors on industrial control boards, and the SOIC package is compatible with standard reflow soldering processes used in high-volume production.
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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.
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