Physical-layer interface between a CAN controller and a two-wire CAN bus, meeting ISO 11898 at data rates up to 1 Mbps. TXD and RXD connect to the controller, CANH and CANL to the differential bus, and the S pin selects normal or a low-current standby mode. Bus pins survive +/-14 kV HBM ESD and wide common-mode swings, so it holds up in noisy automotive and industrial wiring. Runs from a single 5 V supply with a VREF output for the controller side.

Pinout

Pin	Name	Type	Function
1	TXD	input	CAN transmit data input from local protocol controller. LOW drives the bus into the dominant state; HIGH releases it to the recessive state. A dominant time-out circuit disables the driver if TXD is held low longer than t(dom) (280-700 µs) to prevent bus lockup.
2	GND	power_in	Device ground reference.
3	VCC	power_in	Transceiver 5 V supply. Recommended operating range 4.5 V to 5.5 V; absolute max 7 V. Bypass locally per Power Supply Recommendations.
4	RXD	output	CAN receive data output to local protocol controller. LOW indicates a dominant bus state; HIGH indicates a recessive bus state. Push-pull CMOS output (VOH ≥ 3.8 V at -2 mA, VOL ≤ 0.4 V at 2 mA).
5	VREF	output	Reference output voltage nominally equal to VCC/2 (typ 2.3 V at VCC = 5 V). Available to stabilize the output common-mode voltage of external circuitry.
6	CANL	bidirectional	Low-level CAN bus line. Differential I/O pin driven low in the dominant state and biased to VCC/2 in the recessive state. Withstands -27 V to 40 V DC and ±200 V transients per ISO 7637.
7	CANH	bidirectional	High-level CAN bus line. Differential I/O pin driven high in the dominant state and biased to VCC/2 in the recessive state. Withstands -27 V to 40 V DC and ±200 V transients per ISO 7637.
8	S	input	Mode select pin. Logic LOW (tie to GND) selects high-speed normal mode; logic HIGH places the device into listen-only silent mode (driver off, receiver active).

Key specifications

Parameter	Value
Type	CAN bus transceiver (ISO 11898)
Data rate	Up to 1 Mbps
Supply	4.75-5.25 V
Common-mode range	-12 V to 12 V
Bus ESD	+/-14 kV HBM
Modes	Normal / standby (S pin)
Package	SOIC-8

Ordering variants

Same part, different packaging or reel option.

SN65HVD1050D (SOIC-8, tube)
SN65HVD1050DR (SOIC-8, tape & reel)

CAD (KiCad official)

Symbol: Interface_CAN_LIN:SN65HVD1050D (KiCad official)
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 (34 pp, sha256 41d9bb19199e2cb0, 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