component
THVD1449DR
Public Made by Adomby adom
Texas Instruments RS-485 / RS-422 ICs, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTHVD1449DR
Texas Instruments · RS-485 / RS-422 ICs · SOIC-8
THVD1449DR 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 | R | output | Receiver data output. |
| 2 | RE | input | Receiver enable, active low, with 2 MΩ internal pull-up. |
| 3 | DE | input | Driver enable, active high. |
| 4 | D | input | Driver data input. |
| 5 | GND | power_in | Device ground. |
| 6 | A | bidirectional | Bus I/O port A (complementary to B); absolute maximum bus voltage range is -15 V to 15 V. |
| 7 | B | bidirectional | Bus I/O port B (complementary to A); absolute maximum bus voltage range is -15 V to 15 V. |
| 8 | VCC | power_in | 3.3-V to 5-V supply for the device; absolute maximum is 7 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Interface |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
THVD1449DR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
thvd1449dr-etched.step/thvd1449dr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);thvd1449dr.step/thvd1449dr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (30 pp, sha256
f5c3d3d8a4ebdcfc, retrieved 2026-10-03, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).