component
SN65HVD1793DR
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
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSN65HVD1793DR
Texas Instruments · RS-485/RS-422 ICs · SOIC-14
SN65HVD1793DR 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; should be left floating. |
| 2 | R | output | Receive data output (digital output) - CMOS logic-level output driven by the differential receiver comparing A vs B. |
| 3 | RE | input | Receiver enable, active low. Drive low to enable the receiver output R; drive high to place R in high-impedance. |
| 4 | DE | input | Driver enable, active high. Drive high to enable the differential driver outputs Y and Z; drive low to place them in high-impedance. |
| 5 | D | input | Driver data input (digital input) - CMOS logic-level input whose state is transmitted differentially onto the Y/Z bus pair when DE is high. |
| 6 | GND | power_in | Local device ground reference. Pins 6 and 7 are connected together internally. |
| 7 | GND | power_in | Local device ground reference. Pins 6 and 7 are connected together internally. |
| 8 | NC | unconnected | No internal connection; should be left floating. |
| 9 | Y | output | Driver non-inverting bus output (complementary to Z). Part of the full-duplex RS-485 transmit pair; fault-protected to >±30 V and features an extended common-mode range of -20 V to 25 V. |
| 10 | Z | output | Driver inverting bus output (complementary to Y). Part of the full-duplex RS-485 transmit pair; fault-protected to >±30 V. |
| 11 | B | input | Receiver inverting bus input (complementary to A). Part of the full-duplex RS-485 receive pair; fault-protected to >±30 V with extended common-mode range -20 V to 25 V. |
| 12 | A | input | Receiver non-inverting bus input (complementary to B). Part of the full-duplex RS-485 receive pair; fault-protected to >±30 V. |
| 13 | VCC | power_in | 4.5-V to 5.5-V supply input. Pins 13 and 14 are connected together internally; bypass with local decoupling. |
| 14 | VCC | power_in | 4.5-V to 5.5-V supply input. Pins 13 and 14 are connected together internally; bypass with local decoupling. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-14 |
| Category | Comm/UART |
| Pins | 14 |
Ordering variants
Same part, different packaging or reel option.
SN65HVD1793DRSN65HVD1793DRD
CAD (KiCad official)
- Symbol:
SN65HVD1793DR - 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 (38 pp, sha256
7965e68e04dfdf1a, 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).