SN65HVD24DR 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 output). Recovered logic-level data from the differential bus. Enters high-impedance state when RE is deasserted (high). Includes failsafe circuit that drives a high-level output within 250 µs after loss of input signal.
2	RE	input	Receiver enable, active low (digital input). When held low, the receiver drives the R pin with recovered bus data. When held high, R is placed in high-impedance state.
3	DE	input	Driver enable, active high (digital input). When high, the differential driver drives the A and B bus outputs from the D input. When low, the driver outputs enter high-impedance state.
4	D	input	Driver data input (digital input). Logic-level TTL/CMOS input whose state determines the differential polarity driven onto the A/B bus when DE is asserted.
5	GND	power_in	Local device ground (reference potential, 0 V).
6	A	bidirectional	Non-inverting RS-485 bus I/O. Driver output or receiver input, complementary to B. Supports common-mode voltage range of -20 V to 25 V and >16 kV HBM ESD.
7	B	bidirectional	Inverting RS-485 bus I/O. Driver output or receiver input, complementary to A. Supports common-mode voltage range of -20 V to 25 V and >16 kV HBM ESD.
8	VCC	power_in	Supply voltage input, 4.5 V to 5.5 V (nominal 5 V). Bypass with a 100 nF ceramic capacitor placed close to the pin between VCC and GND.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

SN65HVD24DR
SN65HVD24DRD
SN65HVD24DRP

CAD (KiCad official)

Symbol: SN65HVD24DR
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 (37 pp, sha256 7a91efb110506aa4, 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