TCAN1042VDRQ1 from Texas Instruments, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	TXD	input	CAN transmit data input from the host MCU/controller. LOW drives a dominant bus state, HIGH allows recessive. Logic thresholds are 0.7×VIO / 0.3×VIO on the V-suffix variant. Includes a dominant time-out (DTO) protection for data rates down to 10 kbps.
2	GND	power_in	Device ground reference. All voltages except differential bus voltages are referenced to this terminal.
3	VCC	power_in	5-V transceiver supply voltage input. Recommended operating range 4.5 V to 5.5 V; absolute max 7 V. Undervoltage lockout on VCC (rising ~4.2 V, falling ~4.0 V) protects the bus during power sequencing.
4	RXD	output	CAN receive data output to the host MCU/controller. LOW indicates a dominant bus state, HIGH indicates recessive. Output is driven to VIO on 'V' suffix devices (this variant). IO drive limit ±2 mA over recommended conditions (absolute max ±8 mA).
5	VIO	power_in	I/O level-shifting supply input (present on 'V' suffix devices only, including TCAN1042VDRQ1). Sets the logic reference for TXD, STB, and RXD so the transceiver can interface directly to 3.3 V or 5 V MCUs. Recommended range 3 V to 5.5 V; absolute max 7 V. Independent undervoltage detection (UVVIO) at ~1.3-2.75 V.
6	CANL	bidirectional	Low-side CAN bus I/O line. Forms the differential pair with CANH. Fault protected to ±58 V (non-H variants such as this V-suffix part) with respect to GND. ±30 V receiver common-mode input range; ±15 kV IEC ESD.
7	CANH	bidirectional	High-side CAN bus I/O line. Forms the differential pair with CANL. Fault protected to ±58 V (non-H variants) with respect to GND. ±30 V receiver common-mode input range; ±15 kV IEC ESD.
8	STB	input	Standby mode control input (active HIGH). Drive LOW for normal mode; drive HIGH to place the transceiver into low-power standby with remote wake (WUP) monitoring on the bus. Logic thresholds are 0.7×VIO / 0.3×VIO on this V-suffix variant.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

TCAN1042VDRQ1
TCAN1042VDRQ1D
TCAN1042VDRQ1DRB

CAD (KiCad official)

Symbol: TCAN1042VDRQ1
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`tcan1042vdrq1.step`	122 KB	You want the bare part, or you mark your own boards.
`tcan1042vdrq1-etched.step`	2.2 MB	You want the part with `TCAN1042VDRQ1` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 565 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: Texas Instruments datasheet (43 pp, sha256 b419d90f0d678231, retrieved 2026-08-17, tier: manufacturer)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF