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SN65LBC173ADR

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Texas Instruments RS-485 / RS-422 ICs, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SN65LBC173ADR

Texas Instruments · RS-485 / RS-422 ICs · SOIC-16

SN65LBC173ADR from Texas Instruments, in a SOIC-16. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 1B input Channel 1 inverting differential bus input; receiver accepts common-mode voltages from −7 V to 12 V.
2 1A input Channel 1 non-inverting differential bus input; receiver accepts common-mode voltages from −7 V to 12 V.
3 1Y output Channel 1 receiver output with 3-state control; high when 1A > 1B, high-impedance when disabled.
4 G input Active-high receiver enable input; all receiver outputs forced to high-impedance when logic low.
5 2Y output Channel 2 receiver output with 3-state control; high when 2A > 2B, high-impedance when disabled.
6 2A input Channel 2 non-inverting differential bus input; receiver accepts common-mode voltages from −7 V to 12 V.
7 2B input Channel 2 inverting differential bus input; receiver accepts common-mode voltages from −7 V to 12 V.
8 GND power_in Device ground and reference for all voltage measurements.
9 3B input Channel 3 inverting differential bus input; receiver accepts common-mode voltages from −7 V to 12 V.
10 3A input Channel 3 non-inverting differential bus input; receiver accepts common-mode voltages from −7 V to 12 V.
11 3Y output Channel 3 receiver output with 3-state control; high when 3A > 3B, high-impedance when disabled.
12 G input Active-low receiver enable input; all receiver outputs forced to high-impedance when logic high.
13 4Y output Channel 4 receiver output with 3-state control; high when 4A > 4B, high-impedance when disabled.
14 4A input Channel 4 non-inverting differential bus input; receiver accepts common-mode voltages from −7 V to 12 V.
15 4B input Channel 4 inverting differential bus input; receiver accepts common-mode voltages from −7 V to 12 V.
16 VCC power_in Power supply input; recommended operating range is 4.75 V to 5.25 V nominal.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-16
Category Interface
Pins 16

CAD (KiCad official)

  • Symbol: SN65LBC173ADR
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16 (KiCad packages3D, STEP)
  • 3D model files: sn65lbc173adr-etched.step / sn65lbc173adr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn65lbc173adr.step / sn65lbc173adr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (21 pp, sha256 e30e02899800e7fe, retrieved 2026-10-01, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF