SN65HVD1176DR 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. Digital CMOS output presenting the recovered logic level from the differential bus (A-B). High when VID ≥ -0.02 V (fail-safe idle → high); driven only when RE is low.
2	RE	input	Receiver enable, active-low. Drive low to enable the receiver output R; drive high to place R in high-impedance. VIH ≥ 2 V, VIL ≤ 0.8 V.
3	DE	input	Driver enable, active-high. Drive high to enable the differential driver onto A/B; drive low to place the driver in high-impedance. VIH ≥ 2 V, VIL ≤ 0.8 V.
4	D	input	Driver data input. TTL/CMOS-compatible logic input whose state determines the polarity of the differential output on A/B when DE is high. VIH ≥ 2 V, VIL ≤ 0.8 V.
5	GND	power_in	Local device ground / reference potential. Connect to the system ground plane.
6	A	bidirectional	Non-inverting RS-485/PROFIBUS bus I/O. Driver non-inverting output and receiver non-inverting input (complementary to B). Differential VOD > 2.1 V into 54 Ω; withstands -9 V to +14 V continuous and ±40 V transient (through 100 Ω).
7	B	bidirectional	Inverting RS-485/PROFIBUS bus I/O. Driver inverting output and receiver inverting input (complementary to A). Withstands -9 V to +14 V continuous and ±40 V transient (through 100 Ω).
8	VCC	power_in	Supply voltage input. Recommended 4.75 V to 5.25 V (nominal 5 V); device tolerates 3 V to 5.5 V per pin-function table. Bypass locally with a low-ESR capacitor to GND.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

SN65HVD1176DR
SN65HVD1176DRD

CAD (KiCad official)

Symbol: SN65HVD1176DR
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 (32 pp, sha256 50d6038b4fdc42de, 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