SN65HVD1780DR

@@ -0,0 +1,49 @@+# SN65HVD1780DR++**Texas Instruments** · RS-485 / RS-422 ICs · SOIC-8++SN65HVD1780DR 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 driven by the differential receiver comparing A and B bus inputs. |+| 2 | RE | input | Receiver enable (active low). Drive low to enable the receiver output R; drive high to place R in high-impedance state. |+| 3 | DE | input | Driver enable (active high). Drive high to enable the differential driver onto the A/B bus; drive low to place driver outputs in high-impedance state. |+| 4 | D | input | Driver data input. CMOS-level digital input; logic level is transmitted differentially onto the A/B bus when DE is high. |+| 5 | GND | power_in | Local device ground reference. |+| 6 | A | bidirectional | Non-inverting RS-485 bus I/O. Driver output or receiver input (complementary to B). Fault-protected to >±70 V, ±16-kV HBM ESD. |+| 7 | B | bidirectional | Inverting RS-485 bus I/O. Driver output or receiver input (complementary to A). Fault-protected to >±70 V, ±16-kV HBM ESD. |+| 8 | VCC | power_in | Supply voltage input. Operating range 3.15 V to 5.5 V (nominal 5 V); absolute max 7 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-8 |+| Category | Interface |+| Pins | 8 |++## Ordering variants++- `SN65HVD1780DRDR`+- `SN65HVD1780DRD`+- `SN65HVD1780DRP`++## CAD (KiCad official)++- Symbol: `SN65HVD1780DR`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/sn65hvd1780.pdf) (34 pp, sha256 `f8736dab94b48730`, 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](docs/sn65hvd1780dr-datasheet.pdf)

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