SN65LBC031DG4

Texas Instruments · CAN Transceivers · SOIC-8

SN65LBC031DG4 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	TX	input	Transmitter input: VIH is 2 V minimum up to VCC and VIL is 0.8 V maximum, and an internal pullup ensures a defined output during power-up and protocol controller reset.
2	GND	power_in	Ground terminal; all voltages except the differential bus voltage are measured with respect to GND.
3	VCC	power_in	Logic supply voltage, 4.5 V minimum to 5.5 V maximum (5 V nominal), with an absolute maximum of 7 V.
4	RX	output	Receiver output: VOH is at least VCC − 0.5 V at IOH = −400 µA and VOL is at most 0.5 V at IOL = 1 mA.
5	REF	power_out	Reference output at 0.45 VCC to 0.55 VCC (IREF = ±20 µA) with an output resistance of 5 to 10 kΩ.
6	CANL	bidirectional	Low-side bus output driver; bus terminal voltage is rated from −5 V to 20 V and the short-circuit output current is 140 to 250 mA.
7	CANH	bidirectional	High-side bus output driver; bus terminal voltage is rated from −5 V to 20 V and the short-circuit output current is −95 to −200 mA.
8	ASC	input	Adjustable slope control: leave open or tie to GND for 500 kBaud operation, or tie to VCC to increase bus transition times for 125 kBaud operation.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOIC-8
Category	Interface
Pins	8

CAD (KiCad official)

Symbol: SN65LBC031DG4
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)
3D model files: sn65lbc031dg4-etched.step / sn65lbc031dg4-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn65lbc031dg4.step / sn65lbc031dg4.glb are the bare package body.

Provenance

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

Datasheet: Texas Instruments datasheet (19 pp, sha256 9c627ef1bbbd44ff, retrieved 2026-10-11, tier: lcsc)
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

# SN65LBC031DG4

**Texas Instruments** · CAN Transceivers · SOIC-8

SN65LBC031DG4 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 | TX | input | Transmitter input: VIH is 2 V minimum up to VCC and VIL is 0.8 V maximum, and an internal pullup ensures a defined output during power-up and protocol controller reset. |
| 2 | GND | power_in | Ground terminal; all voltages except the differential bus voltage are measured with respect to GND. |
| 3 | VCC | power_in | Logic supply voltage, 4.5 V minimum to 5.5 V maximum (5 V nominal), with an absolute maximum of 7 V. |
| 4 | RX | output | Receiver output: VOH is at least VCC − 0.5 V at IOH = −400 µA and VOL is at most 0.5 V at IOL = 1 mA. |
| 5 | REF | power_out | Reference output at 0.45 VCC to 0.55 VCC (IREF = ±20 µA) with an output resistance of 5 to 10 kΩ. |
| 6 | CANL | bidirectional | Low-side bus output driver; bus terminal voltage is rated from −5 V to 20 V and the short-circuit output current is 140 to 250 mA. |
| 7 | CANH | bidirectional | High-side bus output driver; bus terminal voltage is rated from −5 V to 20 V and the short-circuit output current is −95 to −200 mA. |
| 8 | ASC | input | Adjustable slope control: leave open or tie to GND for 500 kBaud operation, or tie to VCC to increase bus transition times for 125 kBaud operation. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `SN65LBC031DG4`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `sn65lbc031dg4-etched.step` / `sn65lbc031dg4-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn65lbc031dg4.step` / `sn65lbc031dg4.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/sn65lbc031) (19 pp, sha256 `9c627ef1bbbd44ff`, retrieved 2026-10-11, tier: lcsc)
- **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/sn65lbc031dg4-datasheet.pdf)