component
SN65HVD77DR
Public Made by Adomby adom
Texas Instruments RS-485 / RS-422 ICs, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownSN65HVD77DR
Texas Instruments · RS-485 / RS-422 ICs · SOIC-8
SN65HVD77DR from Texas Instruments, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VCC | power_in | 3.3-V to 3.6-V supply voltage for the transceiver |
| 2 | R | output | Receive data digital output from the differential receiver |
| 3 | D | input | Driver data digital input to the differential driver |
| 4 | GND | power_in | Local device ground reference potential |
| 5 | Y | output | Digital bus output Y, complementary to Z (positive driver output) |
| 6 | Z | output | Digital bus output Z, complementary to Y (negative driver output) |
| 7 | B | input | Digital bus input B, complementary to A for the differential receiver |
| 8 | A | input | Digital bus input A, complementary to B for the differential receiver |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Interface |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
SN65HVD77DR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
sn65hvd77dr-etched.step/sn65hvd77dr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn65hvd77dr.step/sn65hvd77dr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (49 pp, sha256
86f57997ef2a3eb6, retrieved 2026-09-27, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).