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SN75179BD

Public Made by Adom

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Texas Instruments RS-485 / RS-422 ICs, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SN75179BD

Texas Instruments · RS-485 / RS-422 ICs · SOIC-8

SN75179BD from Texas Instruments, in a SOIC-8. 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 VCC power_in 5V power supply
2 R output Receiver output; high when differential A-B ≥ +0.2V, low when A-B ≤ -0.2V
3 D input Driver input; controls Y and Z outputs complementarily; logic high/low
4 GND power_in Ground reference
5 Y output Non-inverting driver output; high when D input high; ±60mA output capability
6 Z output Inverted driver output; high when D input low; ±60mA output capability
7 B input Inverted RS485 bus input; 12kΩ minimum input impedance; differential pair with pin 8 (A)
8 A input Non-inverting RS485 bus input; 12kΩ minimum input impedance; differential pair with pin 7 (B)

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-8
Category Interface
Pins 8

CAD (KiCad official)

  • Symbol: SN75179BD
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: sn75179bd-etched.step / sn75179bd-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn75179bd.step / sn75179bd.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (23 pp, sha256 68cd6a4ac24e706a, retrieved 2026-10-07, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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