component
SN65HVD75
Public Made by Adomby adom
TI 3.3 V half-duplex RS-485 transceiver, SOIC-8. Up to 20 Mbps, IEC ESD, -7 to +12 V bus. Datasheet-verified.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSN65HVD75
Texas Instruments · RS-485 transceiver · SOIC-8
3.3 V half-duplex RS-485 transceiver in a SOIC-8 package, rated for signaling up to 20 Mbps with IEC 61000-4-2 ESD protection on the bus pins. A logic-side D/R pair plus independent RE (active-low) and DE (active-high) enables let one MCU UART drive and listen on a shared A/B differential bus with -7 to +12 V common-mode range. The default long-wire multidrop link for industrial sensors and Modbus. Terminate the bus with 120 ohm at each end.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | R | output | Receive data output. Logic-level output from the differential receiver, driven from bus pins A and B. High when A-B > VIT+ ( |
| 2 | RE | input | Active-low receiver enable. Drive low to enable the receiver output R; drive high to place R in high-impedance. 5-V tolerant logic input. |
| 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. 5-V tolerant logic input. |
| 4 | D | input | Driver data input. Logic-level input that sets the differential state of bus pins A and B when the driver is enabled (DE = high). 5-V tolerant. |
| 5 | GND | power_in | Local device ground (0 V reference). |
| 6 | A | bidirectional | Non-inverting RS-485 bus I/O. Driver output (complementary to B) when DE is high; receiver input (complementary to B) when RE is low. Rated for -7 V to +12 V common-mode with >=12 kV IEC 61000-4-2 contact ESD. |
| 7 | B | bidirectional | Inverting RS-485 bus I/O. Driver output (complementary to A) when DE is high; receiver input (complementary to A) when RE is low. Rated for -7 V to +12 V common-mode with >=12 kV IEC 61000-4-2 contact ESD. |
| 8 | VCC | power_in | Supply voltage input, 3.0 V to 3.6 V (3.3 V nominal). Bypass locally with a 100 nF ceramic capacitor to GND. |
Key specifications
| Parameter | Value |
|---|---|
| Type | Half-duplex RS-485 transceiver |
| Data rate | up to 20 Mbps |
| Supply voltage | 3.0-3.6 V (3.3 V nominal) |
| Bus | A / B differential, -7 to +12 V common-mode |
| ESD | >=12 kV IEC 61000-4-2 (contact) |
| Enables | RE (active-low), DE (active-high) |
| Package | SOIC-8 |
| Body (L×W×H) | 4.9 × 3.9 × 1.75 mm |
Ordering variants
Same part, different packaging or reel option.
SN65HVD75D (SOIC-8, tube)SN65HVD75DR (SOIC-8, tape & reel)
CAD (KiCad official)
- Symbol:
SN65HVD75 (Adom-authored grouped symbol via adom-symbol; not in KiCad libs) - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D)
- 3D model files:
sn65hvd75-etched.step/sn65hvd75-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn65hvd75.step/sn65hvd75.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (47 pp, sha256
b46f5803fa8302f9, retrieved 2026-08-17, tier: manufacturer) - Extractor:
ds2sf(Claude) — every pin and dimension is cited to a datasheet page; refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).