# TCAN1057ADDFRQ1

**Texas Instruments** · CAN Transceivers · TSOT-23-8

TCAN1057ADDFRQ1 from Texas Instruments, in a TSOT-23-8. 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 | TXD | input | CAN transmit data input with integrated pull-up resistor |
| 2 | GND | power_in | Ground reference for the transceiver |
| 3 | VCC | power_in | 5V power supply voltage |
| 4 | RXD | output | CAN receive data output, tri-state when unpowered |
| 5 | NC | unconnected | No connection, not internally connected for devices without VIO |
| 6 | CANL | bidirectional | Low level CAN bus input/output line |
| 7 | CANH | bidirectional | High level CAN bus input/output line |
| 8 | S | input | Silent mode control input with integrated pull-up resistor |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSOT-23-8 |
| Category | Interface |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `TCAN1057ADDFRQ1`
- Footprint: `Package_TO_SOT_SMD:TSOT-23-8`
- 3D model: TSOT-23-8 (KiCad packages3D, STEP)
- 3D model files: `tcan1057addfrq1-etched.step` / `tcan1057addfrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tcan1057addfrq1.step` / `tcan1057addfrq1.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/tcan1057a-q1) (40 pp, sha256 `1a955e10f2721f4a`, retrieved 2026-10-03, 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 0.3`, 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/tcan1057addfrq1-datasheet.pdf)