# TCAN1043ATDRQ1

**Texas Instruments** · CAN Transceivers · SOIC-14

TCAN1043ATDRQ1 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 | TXD | input | CAN transmit data input with integrated pull-up. |
| 2 | GND | power_in | Ground connection. |
| 3 | VCC | power_in | 5 V transceiver supply voltage (4.5 V to 5.5 V recommended operating range). |
| 4 | RXD | tri_state | CAN receive data output, tri-state when VIO < UVIO. |
| 5 | VIO | power_in | I/O supply voltage (1.7 V to 5.5 V recommended operating range). |
| 6 | EN | input | Enable input for mode control with integrated pull-down. |
| 7 | INH | output | Inhibit pin to control system voltage regulators and supplies with high-voltage capability. |
| 8 | nFAULT | output | Fault output with inverted logic. |
| 9 | WAKE | input | Local WAKE input terminal with high-voltage capability up to 45 V. |
| 10 | VSUP | power_in | High-voltage battery supply (4.5 V to 40 V recommended operating range) with load dump support up to 45 V for 300 ms. |
| 11 | NC | unconnected | No connect, internally not connected. |
| 12 | CANL | bidirectional | Low-level CAN bus input/output line with ±58 V fault tolerance per ISO 11898-2:2016. |
| 13 | CANH | bidirectional | High-level CAN bus input/output line with ±58 V fault tolerance per ISO 11898-2:2016. |
| 14 | nSTB | input | Standby mode control input with integrated pull-down. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `TCAN1043ATDRQ1`
- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`
- 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files: `tcan1043atdrq1-etched.step` / `tcan1043atdrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tcan1043atdrq1.step` / `tcan1043atdrq1.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Texas Instruments datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8597537000832307200) (55 pp, sha256 `700634d707dbe1cc`, retrieved 2026-10-07, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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/tcan1043atdrq1-datasheet.pdf)