Product details

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
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
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
  • 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.

  • 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.

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.

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.

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Technical documentation

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* Data sheet Low-Power Differential Line Driver And Receiver Pairs datasheet (Rev. G) 03 Apr 2009
Technical article Get Connected: Failsafe bias those contentious buses! 14 Aug 2015

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SN65LBC180AD IBIS Model

SLLC274.ZIP (8 KB) - IBIS Model
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Reference designs

TIDA-00540 — RS-485 / RS-232 Multiprotocol Transceiver Reference Design

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.
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PDIP (N) 14 View options
QFN (RSA) 16 View options
SOIC (D) 14 View options

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