component
SN65HVD72D
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
markdownSN65HVD72D
Texas Instruments · RS-485 / RS-422 ICs · SOIC-8
SN65HVD72D 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; transitions high when differential input (VA-VB) exceeds -20 mV and low when below -150 mV threshold while receiver is enabled (RE = low), capable of sourcing/sinking ±8 mA. |
| 2 | RE | input | Active-low receiver enable input; receiver is enabled when RE is at logic low (0-0.8 V) and disabled when high or left open. |
| 3 | DE | input | Active-high driver enable input; when DE is logic high (≥2 V) the driver outputs follow input D, when low (≤0.8 V) the outputs are high-impedance. |
| 4 | D | input | Driver data input; determines output polarity when driver is enabled (DE = high): logic high drives A high and B low, logic low drives A low and B high. |
| 5 | GND | power_in | Local device ground serving as reference potential for signal levels and power supply return path. |
| 6 | A | bidirectional | Differential RS-485 bus I/O line A (complementary to B); capable of sustaining ±13 V to +16.5 V absolute maximum with ±1.5 V to ±2 V typical differential output swing and ±60 mA driver current capacity. |
| 7 | B | bidirectional | Differential RS-485 bus I/O line B (complementary to A); capable of sustaining ±13 V to +16.5 V absolute maximum with ±1.5 V to ±2 V typical differential output swing and ±60 mA driver current capacity. |
| 8 | VCC | power_in | Power supply input operating from 3.0 V to 3.6 V (3.3 V nominal) under recommended conditions with 5 V absolute maximum rating. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Interface |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
SN65HVD72D - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
sn65hvd72d-etched.step/sn65hvd72d-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn65hvd72d.step/sn65hvd72d.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (46 pp, sha256
34f5900786acbc46, retrieved 2026-09-27, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).