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SN65HVD20DR

Public Made by Adom

by adom

Texas Instruments RS-485 / RS-422 ICs, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs sn65hvd20dr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
viewers sn65hvd20dr: viewers · Ray 29d ago
package.json Publish 0.1.0 · Ray 29d ago
page.json sn65hvd20dr: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 14h ago
README.md sn65hvd20dr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 16d ago
sn65hvd20dr-etched.fit.json sn65hvd20dr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
sn65hvd20dr-etched.glb sn65hvd20dr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
sn65hvd20dr-etched.step sn65hvd20dr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
sn65hvd20dr.glb Publish 0.1.0 · Ray 29d ago
sn65hvd20dr.kicad_mod Publish 0.1.0 · Ray 29d ago
sn65hvd20dr.kicad_sym Publish 0.1.0 · Ray 29d ago
sn65hvd20dr.lbr Publish 0.1.0 · Ray 29d ago
sn65hvd20dr.step Publish 0.1.0 · Ray 29d ago

SN65HVD20DR

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

SN65HVD20DR from Texas Instruments, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 R output Receive data output. Digital CMOS output that reflects the state of the differential receiver comparing bus lines A and B.
2 RE input Receiver enable, active low. Drive low to enable the receiver output R; drive high to place R in a high-impedance state.
3 DE input Driver enable, active high. Drive high to enable the differential driver outputs A and B; drive low to place the driver in a high-impedance state.
4 D input Driver data input. Digital CMOS input; the logic level here determines the differential state driven on the A/B bus when DE is high.
5 GND power_in Local device ground / reference potential.
6 A bidirectional RS-485 differential bus line A (non-inverting). Driver output or receiver input, complementary to B. Extended common-mode range -20 V to 25 V.
7 B bidirectional RS-485 differential bus line B (inverting). Driver output or receiver input, complementary to A. Extended common-mode range -20 V to 25 V.
8 VCC power_in Supply voltage input, 4.5 V to 5.5 V. Bypass locally with a 100 nF ceramic capacitor to GND.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • SN65HVD20DR
  • SN65HVD20DRD
  • SN65HVD20DRP

CAD (KiCad official)

  • Symbol: SN65HVD20DR
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: sn65hvd20dr-etched.step / sn65hvd20dr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn65hvd20dr.step / sn65hvd20dr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (37 pp, sha256 7a91efb110506aa4, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF