TCAN1042HDRQ1 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. LOW drives the bus dominant, HIGH lets the bus recess. Logic input range -0.3 V to 7 V (or VIO+0.3 V on 'V' devices).
2	GND	power_in	Ground connection (0 V reference). For DRB (VSON) package options the thermal pad may be connected to GND to optimize thermal characteristics.
3	VCC	power_in	Transceiver 5-V supply voltage. Recommended operating range 4.5 V to 5.5 V; absolute maximum -0.3 V to 7 V.
4	RXD	output	CAN receive data output. LOW when bus is dominant, HIGH when bus is recessive. Output drive ±2 mA (recommended), ±8 mA (absolute max). On non-'V' devices, driven to VCC logic levels.
5	NC	unconnected	No connect. On base/H/G/HG suffix devices this pin is unused (leave floating or tie appropriately). On 'V' suffix parts this pin is used as VIO instead.
6	CANL	bidirectional	Low-level CAN differential bus I/O line. Bus fault protection ±70 V (H suffix); differential absolute maximum ±70 V (H). Includes ±15 kV IEC ESD protection.
7	CANH	bidirectional	High-level CAN differential bus I/O line. Bus fault protection ±70 V (H suffix); differential absolute maximum ±70 V (H). Includes ±15 kV IEC ESD protection.
8	STB	input	Standby mode control input, active HIGH. Drive HIGH to place the transceiver in Low Power Standby Mode with Remote Wake capability; LOW selects normal operation.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOIC-8
Category	Comm/UART
Pins	8

Ordering variants

Same part, different packaging or reel option.

TCAN1042HDRQ1
TCAN1042HDRQ1D
TCAN1042HDRQ1DRB
TCAN1042HDRQ1DRBR

CAD (KiCad official)

Symbol: TCAN1042HDRQ1
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Texas Instruments datasheet (41 pp, sha256 3b66c68542cea6ea, retrieved 2026-08-17, 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: 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