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Contents

README

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SN65LBC179P

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

SN65LBC179P from Texas Instruments, in a PDIP-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 5 V supply pin, with a recommended supply range of 4.75 V to 5.25 V and an absolute maximum of 7 V.
2 R output RS-485 receiver logic output, rated for a high-level output current of -8 mA and a low-level output current of 8 mA, with an absolute maximum current of ±10 mA.
3 D input RS-485 driver logic input, requiring a high level of at least 2 V and a low level of at most 0.8 V.
4 GND power_in Ground reference for the device; all voltages are referenced to this pin.
5 Y output Non-inverting RS-485 bus driver output, with output current limited to ±250 mA short-circuit and bus voltage range of -7 V to 12 V.
6 Z output Inverted RS-485 bus driver output, with output current limited to ±250 mA short-circuit and bus voltage range of -7 V to 12 V.
7 B input Inverted RS-485 bus receiver input, with bus voltage range of -7 V to 12 V.
8 A input Non-inverting RS-485 bus receiver input, with bus voltage range of -7 V to 12 V.

Key specifications

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

CAD (KiCad official)

  • Symbol: SN65LBC179P
  • Footprint: Package_DIP:DIP-8_W7.62mm
  • 3D model: PDIP-8 (KiCad packages3D, STEP)
  • 3D model files: sn65lbc179p-etched.step / sn65lbc179p-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn65lbc179p.step / sn65lbc179p.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (25 pp, sha256 7d3bfd61bb5629cb, retrieved 2026-10-08, 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-5-5 (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