SN65HVD82DR
Public Unreviewedby Ray
Texas Instruments RS-485 / RS-422 ICs, SOIC-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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README
markdownSN65HVD82DR
Texas Instruments · RS-485 / RS-422 ICs · SOIC-8
SN65HVD82DR 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 | Receiver data output. CMOS-level digital output reflecting the received differential state on the A/B bus. VOH ≥ VCC−0.3 V at IOH = −8 mA; VOL ≤ 0.4 V at IOL = 8 mA. |
| 2 | RE | input | Receiver enable, active low. Drive low to enable the receiver output R; drive high to place R in high-impedance. Input current typ ±2 µA. |
| 3 | DE | input | Driver enable, active high. Drive high to enable the differential driver onto the A/B bus; drive low to place A/B in high-impedance. Input current typ ±2 µA. |
| 4 | D | input | Driver data input. CMOS-level digital input that sets the differential state driven onto A/B when DE is asserted. VIH ≥ 2 V, VIL ≤ 0.8 V. |
| 5 | GND | power_in | Local device ground / reference potential. |
| 6 | A | bidirectional | RS-485 bus input/output A (non-inverting). Driver output or receiver input, complementary to B. Bus common-mode range −7 V to +12 V; differential input threshold between −200 mV and −20 mV with ~60 mV hysteresis. |
| 7 | B | bidirectional | RS-485 bus input/output B (inverting). Driver output or receiver input, complementary to A. Same electrical characteristics as pin A. |
| 8 | VCC | power_in | Supply voltage input, 4.5 V to 5.5 V (nominal 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.
SN65HVD82DRSN65HVD82DRD
CAD (KiCad official)
- Symbol:
SN65HVD82DR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
sn65hvd82dr.step |
122 KB | You want the bare part, or you mark your own boards. |
sn65hvd82dr-etched.step |
2.4 MB | You want the part with SN65HVD82DR already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 586 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
acb04b42c4ca4701, 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).