component
SN65HVD34DR
Public Unreviewedby Ray
Texas Instruments RS-485/RS-422 ICs, SOIC-14. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
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PCB Footprint
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Datasheet
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README
markdownSN65HVD34DR
Texas Instruments · RS-485/RS-422 ICs · SOIC-14
SN65HVD34DR from Texas Instruments, in a SOIC-14. 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 | NC | unconnected | No internal connection; must be left floating. |
| 2 | R | output | Receive data output (digital output). Driven by the differential receiver comparing bus inputs A and B. |
| 3 | RE | input | Receiver enable, active low (digital input). Drive low to enable the receiver; drive high to place the R output in high-impedance. |
| 4 | DE | input | Driver enable, active high (digital input). Drive high to enable the driver outputs Y and Z; drive low to place them in high-impedance. |
| 5 | D | input | Driver data input (digital input). Logic level presented at D drives the differential Y/Z outputs when DE is asserted. |
| 6 | GND | power_in | Local device ground / reference potential. Pins 6 and 7 are connected together internally. |
| 7 | GND | power_in | Local device ground / reference potential. Pins 6 and 7 are connected together internally. |
| 8 | NC | unconnected | No internal connection; must be left floating. |
| 9 | Y | output | Non-inverting driver bus output (complementary to Z). Together with Z forms the differential RS-485/RS-422 transmit pair. |
| 10 | Z | output | Inverting driver bus output (complementary to Y). Together with Y forms the differential RS-485/RS-422 transmit pair. |
| 11 | B | input | Inverting receiver bus input (complementary to A). Together with A forms the differential RS-485/RS-422 receive pair. |
| 12 | A | input | Non-inverting receiver bus input (complementary to B). Together with B forms the differential RS-485/RS-422 receive pair. |
| 13 | VCC | power_in | 3-V to 3.6-V supply input. Pins 13 and 14 are connected together internally; both must be tied to the supply rail and decoupled. |
| 14 | VCC | power_in | 3-V to 3.6-V supply input. Pins 13 and 14 are connected together internally; both must be tied to the supply rail and decoupled. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-14 |
| Category | Comm/UART |
| Pins | 14 |
Ordering variants
Same part, different packaging or reel option.
SN65HVD34DRDSN65HVD34DRRHL
CAD (KiCad official)
- Symbol:
SN65HVD34DR - Footprint:
Package_SO:SOIC-14_3.9x8.7mm_P1.27mm - 3D model: SOIC-14 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (47 pp, sha256
4f90059e9caf3d07, 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).