component

THVD1520DR

Public Made by Adom

by adom

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

componentcomm-uartthvd1520dr
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs thvd1520dr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 2mo ago
package.json Publish 0.2.0 · Ray 2mo ago
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 2mo ago
page.json thvd1520dr: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 28d ago
README.md thvd1520dr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 1mo ago
thvd1520dr-etched.fit.json thvd1520dr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
thvd1520dr-etched.glb thvd1520dr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
thvd1520dr-etched.step thvd1520dr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
thvd1520dr.glb Publish 0.1.0 · Ray 2mo ago
thvd1520dr.kicad_mod Publish 0.1.0 · Ray 2mo ago
thvd1520dr.kicad_sym Publish 0.1.0 · Ray 2mo ago
thvd1520dr.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray 2mo ago
thvd1520dr.step Publish 0.1.0 · Ray 2mo ago

THVD1520DR

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

THVD1520DR 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 output). Presents the recovered logic-level data from the differential bus (A-B).
2 RE input Receiver enable, active low (digital input). Internal ~5 MΩ pull-up; drive low to enable the receiver output R.
3 DE input Driver enable, active high (digital input). Internal ~5 MΩ pull-down; drive high to enable the differential driver onto the A/B bus.
4 D input Driver data input (digital input). Internal ~5 MΩ pull-up; TTL/CMOS logic level transmitted to the RS-485 bus when DE is asserted.
5 GND power_in Device ground reference (0 V).
6 A bidirectional RS-485 differential bus I/O port A (non-inverting, complementary to B). Rated bus common-mode range -7 V to +12 V.
7 B bidirectional RS-485 differential bus I/O port B (inverting, complementary to A). Rated bus common-mode range -7 V to +12 V.
8 VCC power_in 5-V supply. Recommended operating range 4.5 V to 5.5 V; typical quiescent current 600 µA with driver and receiver enabled.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-8
Category Comm/UART
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • THVD1520DR
  • THVD1520DRD

CAD (KiCad official)

  • Symbol: THVD1520DR
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: thvd1520dr-etched.step / thvd1520dr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); thvd1520dr.step / thvd1520dr.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
thvd1520dr.step 122 KB You want the bare part, or you mark your own boards.
thvd1520dr-etched.step 1.9 MB You want the part with THVD1520DR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 480 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: Texas Instruments datasheet (27 pp, sha256 d500e0bf686eaf7b, 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