Top

Product details

Parameters

Number of receivers 1 Number of transmitters 1 Duplex Full Supply voltage (Nom) (V) 5 Signaling rate (Max) (Mbps) 10 IEC 61000-4-2 contact (+/- kV) Fault protection (V) -10 to 15 Common mode range -7 to 12 Number of nodes 32 Isolated No ICC (Max) (mA) 4 Rating Catalog Operating temperature range (C) -40 to 85 open-in-new Find other RS-485 & RS-422 transceivers

Package | Pins | Size

PDIP (N) 14 181 mm² 19.3 x 9.4 SOIC (D) 14 52 mm² 8.65 x 6 VQFN (RSA) 16 16 mm² 4 x 4 open-in-new Find other RS-485 & RS-422 transceivers

Features

  • Designed for High-Speed Multipoint Data Transmission Over Long Cables
  • Operate With Pulse Durations as Low as 30 ns
  • Low Supply Current . . . 5 mA Max
  • Meet or Exceed the Requirements of ANSI Standard RS-485 and ISO 8482:1987(E)
  • 3-State Outputs for Party-Line Buses
  • Common-Mode Voltage Range of -7 V to 12 V
  • Thermal Shutdown Protection Prevents Driver Damage From Bus Contention
  • Positive and Negative Output Current Limiting
  • Pin Compatible With the SN75ALS180

LinBiCMOS is a trademark of Texas Instruments.

open-in-new Find other RS-485 & RS-422 transceivers

Description

The SN55LBC180, SN65LBC180 and SN75LBC180 differential driver and receiver pairs are monolithic integrated circuits designed for bidirectional data communication over long cables that take on the characteristics of transmission lines. They are balanced, or differential, voltage mode devices that meet or exceed the requirements of industry standards ANSI RS-485 and ISO 8482:1987(E). These devices are designed using TI's proprietary LinBiCMOS™ with the low-power consumption of CMOS and the precision and robustness of bipolar transistors in the same circuit.

The SN55LBC180, SN65LBC180 and SN75LBC180 combine a differential line driver and receiver with 3-state outputs and operate from a single 5-V supply. The driver and receiver have active-high and active-low enables, respectively, which can be externally connected to function as a direction control. The driver differential outputs and the receiver differential inputs are connected to separate terminals for full-duplex operation and are designed to present minimum loading to the bus whether disabled or powered off (VCC = 0). These parts feature a wide common-mode voltage range making them suitable for point-to-point or multipoint data-bus applications.

The devices also provide positive and negative output-current limiting and thermal shutdown for protection from line fault conditions. The line driver shuts down at a junction temperature of approximately 172°C.

The SN75LBC180 is characterized for operation over the commercial temperature range of 0°C to 70°C. The SN65LBC180 is characterized over the industrial temperature range of -40°C to 85°C.

The SN55LBC180 is characterized for operation over the military temperature range of -55°C to 125°C.

open-in-new Find other RS-485 & RS-422 transceivers
Download
Similar products you might be interested in
open-in-new Compare products
Same functionality and pinout but is not an equivalent to the compared device:
THVD1552 ACTIVE 5V RS-485 Transceivers With ±18kV IEC ESD Protection Pin-to-pin device that offers integrated IEC ESD protection (18-kV contact discharge), IEC EFT (4-kV noise immunity), and extended common voltage range

Technical documentation

star = Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 2
Type Title Date
* Data sheet Low-Power Differential Line Driver And Receiver Pairs datasheet (Rev. G) Apr. 03, 2009
Technical article Get Connected: Failsafe bias those contentious buses! Aug. 14, 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Design tools & simulation

SIMULATION MODEL Download
SLLC274.ZIP (8 KB) - IBIS Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SIMULATION TOOL Download
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide

Reference designs

REFERENCE DESIGNS Download
RS-485 / RS-232 Multiprotocol Transceiver Reference Design
TIDA-00540 This design (TIDA-00540) allows for communication over RS-485 or RS-232 data buses without requiring separate wiring for each.  Data lines are shared between two different transceiver types, and a single control signal is used to determine which protocol is to be used.
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
PDIP (N) 14 View options
QFN (RSA) 16 View options
SOIC (D) 14 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos