SN65HVD11DR 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	R	output	Receive data output. CMOS-level digital output reflecting the RS-485 bus differential state (VOH ≥ 2.4 V, VOL ≤ 0.4 V at ±8 mA). High-impedance when RE is high.
2	RE	input	Active-low receiver enable. Drive low to enable the receiver output R; drive high to place R in high-impedance. Combined with DE=low, enables low-current standby mode (ICC ≈ 1 µA).
3	DE	input	Active-high driver enable. Drive high to enable the differential driver outputs on A and B; drive low to place them in high-impedance.
4	D	input	Driver data input. CMOS-level logic input (VIH ≥ 2 V, VIL ≤ 0.8 V) that sets the polarity of the A/B differential driver outputs when DE is high.
5	GND	power_in	Local device ground / reference potential. Common return for supply and signal currents.
6	A	bidirectional	Non-inverting RS-485 bus I/O. Driver output or receiver input, complementary to B. Withstands −7 V to 12 V common-mode; ±16-kV HBM ESD; short-circuit protected.
7	B	bidirectional	Inverting RS-485 bus I/O. Driver output or receiver input, complementary to A. Withstands −7 V to 12 V common-mode; ±16-kV HBM ESD; short-circuit protected.
8	VCC	power_in	Supply voltage input. 3.0 V to 3.6 V nominal (3.3 V typical). Bypass with a low-ESR ceramic capacitor placed close to the pin.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

SN65HVD11DRD
SN65HVD11DR
SN65HVD11DRQD
SN65HVD11DRQDR
SN65HVD11DRP
SN65HVD11DRQP

CAD (KiCad official)

Symbol: SN65HVD11DR
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
`sn65hvd11dr.step`	122 KB	You want the bare part, or you mark your own boards.
`sn65hvd11dr-etched.step`	2.1 MB	You want the part with `SN65HVD11DR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 522 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 (37 pp, sha256 c180625a50ecb754, 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