ISO1042BDWVR from Texas Instruments, in a SOIC-8-300mil. 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	VCC1	power_in	Digital-side supply voltage, Side 1. Operating range 1.71-1.89 V (for 1.8-V logic) or 2.25-5.5 V (for 2.5/3.3/5.0-V logic). Bypass locally to GND1.
2	TXD	input	CAN transmit data input from the MCU. LOW drives a dominant bus state; HIGH leaves the bus recessive. Referenced to VCC1/GND1 logic levels.
3	RXD	output	CAN receive data output to the MCU. LOW indicates a dominant bus state, HIGH indicates a recessive bus state. Output current limited to ±15 mA (absolute max).
4	GND1	power_in	Digital-side ground connection, Side 1. Return for VCC1, TXD, and RXD. Isolated from GND2 by the SiO2 barrier.
5	GND2	power_in	Transceiver-side ground connection, Side 2. Return for VCC2, CANH, and CANL. Isolated from GND1 by the SiO2 barrier.
6	CANL	bidirectional	Low-level CAN bus line. Withstands ±70 V DC bus fault, ±30 V common-mode range, and ±16 kV HBM ESD (to GND2). High-impedance when unpowered.
7	CANH	bidirectional	High-level CAN bus line. Withstands ±70 V DC bus fault, ±30 V common-mode range, and ±16 kV HBM ESD (to GND2). High-impedance when unpowered.
8	VCC2	power_in	Transceiver-side supply voltage, Side 2. Operating range 4.5-5.5 V. Bypass locally to GND2.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOIC-8-300mil
Category	Interface
Pins	8

Ordering variants

Same part, different packaging or reel option.

ISO1042BDWVR
ISO1042BDWVRDWR

CAD (KiCad official)

Symbol: ISO1042BDWVR
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8-300mil (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`iso1042bdwvr.step`	122 KB	You want the bare part, or you mark your own boards.
`iso1042bdwvr-etched.step`	2.4 MB	You want the part with `ISO1042BDWVR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 593 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 a85ab2ef1846a72a, 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