component

THVD1400DR

Public Made by Adom

by adom

Texas Instruments Interface - Specialized, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

componentcomm-uartthvd1400dr
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs thvd1400dr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
package.json Publish 0.2.0 · Ray 1mo ago
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
page.json thvd1400dr: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 18h ago
README.md thvd1400dr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 19d ago
thvd1400dr-etched.fit.json thvd1400dr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
thvd1400dr-etched.glb thvd1400dr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
thvd1400dr-etched.step thvd1400dr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
thvd1400dr.glb Publish 0.1.0 · Ray 1mo ago
thvd1400dr.kicad_mod Publish 0.1.0 · Ray 1mo ago
thvd1400dr.kicad_sym Publish 0.1.0 · Ray 1mo ago
thvd1400dr.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect and oval pad as a SQUARE EAGLE smd; this carries the real pad shape across (0 -> 8 rounded pads) and stops dropping geometry drawn on KiCad User.N layers. Attributes, connects, pads and the pin-1 marker are gated against decreasing and are unchanged. · Ray 1mo ago
thvd1400dr.step Publish 0.1.0 · Ray 1mo ago

THVD1400DR

Texas Instruments · Interface - Specialized · SOIC-8

THVD1400DR 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 driven by the differential receiver comparing bus pins A and B. VOH ≥ VCC-0.4 V at IOH = -4 mA; VOL ≤ 0.4 V at IOL = 4 mA.
2 RE input Receiver enable, active low. Digital input with internal 2-MΩ pull-up to VCC. When low, the receiver is enabled and drives pin R; when high, R goes to high-impedance.
3 DE input Driver enable, active high. Digital input with internal 2-MΩ pull-down to GND. When high, the driver is enabled and drives bus pins A and B; when low, A/B go to high-impedance.
4 D input Driver data input. Digital CMOS input; logic level driven onto the differential bus (A/B) when DE is high. VIH ≥ 2 V, VIL ≤ 0.8 V.
5 GND power_in Device ground reference.
6 A bidirectional Non-inverting RS-485 differential bus I/O port (complementary to B). Bus voltage range -7 V to +12 V; ±12-kV IEC 61000-4-2 contact ESD protection; ±16-V absolute-max fault voltage; 1/8 unit load.
7 B bidirectional Inverting RS-485 differential bus I/O port (complementary to A). Bus voltage range -7 V to +12 V; ±12-kV IEC 61000-4-2 contact ESD protection; ±16-V absolute-max fault voltage; 1/8 unit load.
8 VCC power_in Supply voltage input, 3 V to 5.5 V (nominal 3.3 V or 5 V). Quiescent supply current 1.5 mA typical; standby current < 1 µA.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • THVD1400DRD
  • THVD1400DR
  • THVD1400DRL
  • THVD1400DRLR

CAD (KiCad official)

  • Symbol: THVD1400DR
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: thvd1400dr-etched.step / thvd1400dr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); thvd1400dr.step / thvd1400dr.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
thvd1400dr.step 122 KB You want the bare part, or you mark your own boards.
thvd1400dr-etched.step 1.8 MB You want the part with THVD1400DR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 475 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 (33 pp, sha256 5ba9785d9fb8dc87, 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