component
SN65HVD1780QDRQ1
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.
main
SN65HVD1780QDRQ1
Texas Instruments · RS-485 / RS-422 ICs · SOIC-8
SN65HVD1780QDRQ1 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 | Receive data output; logic level representation of the received differential bus signal. |
| 2 | RE | input | Receiver enable input, active low; when high or open, receiver output is placed in high-impedance state. |
| 3 | DE | input | Driver enable input, active high; enables the differential driver output when high, tri-states when low. |
| 4 | D | input | Driver data input; transmitted to differential bus outputs A and B when driver is enabled. |
| 5 | GND | power_in | Local device ground and reference potential. |
| 6 | A | bidirectional | Differential bus A driver output or receiver input (complementary to B); rated for ±70 V bus fault protection with ±16 kV HBM ESD protection. |
| 7 | B | bidirectional | Differential bus B driver output or receiver input (complementary to A); rated for ±70 V bus fault protection with ±16 kV HBM ESD protection. |
| 8 | VCC | power_in | Supply voltage input; 3.15 V to 5.5 V recommended operating range. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Interface |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
SN65HVD1780QDRQ1 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
sn65hvd1780qdrq1-etched.step/sn65hvd1780qdrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn65hvd1780qdrq1.step/sn65hvd1780qdrq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (30 pp, sha256
ac787a89749a3117, 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).
# SN65HVD1780QDRQ1
**Texas Instruments** · RS-485 / RS-422 ICs · SOIC-8
SN65HVD1780QDRQ1 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 | Receive data output; logic level representation of the received differential bus signal. |
| 2 | RE | input | Receiver enable input, active low; when high or open, receiver output is placed in high-impedance state. |
| 3 | DE | input | Driver enable input, active high; enables the differential driver output when high, tri-states when low. |
| 4 | D | input | Driver data input; transmitted to differential bus outputs A and B when driver is enabled. |
| 5 | GND | power_in | Local device ground and reference potential. |
| 6 | A | bidirectional | Differential bus A driver output or receiver input (complementary to B); rated for ±70 V bus fault protection with ±16 kV HBM ESD protection. |
| 7 | B | bidirectional | Differential bus B driver output or receiver input (complementary to A); rated for ±70 V bus fault protection with ±16 kV HBM ESD protection. |
| 8 | VCC | power_in | Supply voltage input; 3.15 V to 5.5 V recommended operating range. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Interface |
| Pins | 8 |
## CAD (KiCad official)
- Symbol: `SN65HVD1780QDRQ1`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `sn65hvd1780qdrq1-etched.step` / `sn65hvd1780qdrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn65hvd1780qdrq1.step` / `sn65hvd1780qdrq1.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/sn65hvd1780-q1) (30 pp, sha256 `ac787a89749a3117`, 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`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-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).
[Datasheet PDF](docs/sn65hvd1780qdrq1-datasheet.pdf)