# SN65HVD54DR

**Texas Instruments** · RS-485 / RS-422 ICs · SOIC-14

SN65HVD54DR from Texas Instruments, in a SOIC-14. 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 | NC | unconnected | No internal connection. |
| 2 | R | output | Receiver output, driven according to the bus A/B inputs when the receiver is enabled (RE low). |
| 3 | RE | input | Active-low receiver enable; high disables the receiver, and with DE low puts the device in standby (<1 µA). |
| 4 | DE | input | Active-high driver enable; low disables the driver, and with RE high puts the device in standby. |
| 5 | D | input | Driver data input, with logic levels VIH min 2 V and VIL max 0.8 V. |
| 6 | GND | power_in | Ground (network ground reference). |
| 7 | GND | power_in | Ground (network ground reference). |
| 8 | NC | unconnected | No internal connection. |
| 9 | Y | output | Non-inverting RS-485 driver output on the bus, usable over -7 V to 12 V common-mode range. |
| 10 | Z | output | Inverting RS-485 driver output on the bus, usable over -7 V to 12 V common-mode range. |
| 11 | B | input | Inverting differential receiver input from the bus, usable over -7 V to 12 V common-mode range. |
| 12 | A | input | Non-inverting differential receiver input from the bus, usable over -7 V to 12 V common-mode range. |
| 13 | VCC | power_in | 5-V supply, 4.5 V to 5.5 V recommended operating range. |
| 14 | VCC | power_in | 5-V supply, 4.5 V to 5.5 V recommended operating range. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-14 |
| Category | Interface |
| Pins | 14 |

## CAD (KiCad official)

- Symbol: `SN65HVD54DR`
- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`
- 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files: `sn65hvd54dr-etched.step` / `sn65hvd54dr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn65hvd54dr.step` / `sn65hvd54dr.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/lit/ds/symlink/sn65hvd54.pdf) (35 pp, sha256 `f0a968fd6764b7d7`, retrieved 2026-10-10, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).

[Datasheet PDF](docs/sn65hvd54dr-datasheet.pdf)