component
SN65LBC176DR
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
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSN65LBC176DR
Texas Instruments · RS-485 / RS-422 ICs · SOIC-8
SN65LBC176DR 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 | Receiver logic output; high when differential input (A - B) ≥ 0.2 V, low when ≤ -0.2 V, with 50 mV typical hysteresis. |
| 2 | RE | input | Receiver enable input; active low (receiver enabled when RE is low, disabled to high impedance when RE is high). |
| 3 | DE | input | Driver enable input; active high (driver enabled when DE is high, outputs disabled to high impedance when DE is low). |
| 4 | D | input | Differential driver data input; high level (≥ 2 V) drives A high and B low, low level (≤ 0.8 V) drives A low and B high. |
| 5 | GND | power_in | Ground reference (0 V). |
| 6 | A | bidirectional | Non-inverting RS485 differential bus pin with common-mode voltage range of -7 V to +12 V. |
| 7 | B | bidirectional | Inverting RS485 differential bus pin with common-mode voltage range of -7 V to +12 V. |
| 8 | VCC | power_in | 5 V power supply pin with recommended operating range 4.75 V to 5.25 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Interface |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
SN65LBC176DR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
sn65lbc176dr-etched.step/sn65lbc176dr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn65lbc176dr.step/sn65lbc176dr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (29 pp, sha256
a708c623b041ca86, retrieved 2026-09-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-5(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).