SN65HVD1176DR

@@ -0,0 +1,48 @@+# SN65HVD1176DR++**Texas Instruments** · RS-485 / RS-422 ICs · SOIC-8++SN65HVD1176DR 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 | Receive data output. Digital CMOS output presenting the recovered logic level from the differential bus (A-B). High when VID ≥ -0.02 V (fail-safe idle → high); driven only when RE is low. |+| 2 | RE | input | Receiver enable, active-low. Drive low to enable the receiver output R; drive high to place R in high-impedance. VIH ≥ 2 V, VIL ≤ 0.8 V. |+| 3 | DE | input | Driver enable, active-high. Drive high to enable the differential driver onto A/B; drive low to place the driver in high-impedance. VIH ≥ 2 V, VIL ≤ 0.8 V. |+| 4 | D | input | Driver data input. TTL/CMOS-compatible logic input whose state determines the polarity of the differential output on A/B when DE is high. VIH ≥ 2 V, VIL ≤ 0.8 V. |+| 5 | GND | power_in | Local device ground / reference potential. Connect to the system ground plane. |+| 6 | A | bidirectional | Non-inverting RS-485/PROFIBUS bus I/O. Driver non-inverting output and receiver non-inverting input (complementary to B). Differential VOD > 2.1 V into 54 Ω; withstands -9 V to +14 V continuous and ±40 V transient (through 100 Ω). |+| 7 | B | bidirectional | Inverting RS-485/PROFIBUS bus I/O. Driver inverting output and receiver inverting input (complementary to A). Withstands -9 V to +14 V continuous and ±40 V transient (through 100 Ω). |+| 8 | VCC | power_in | Supply voltage input. Recommended 4.75 V to 5.25 V (nominal 5 V); device tolerates 3 V to 5.5 V per pin-function table. Bypass locally with a low-ESR capacitor to GND. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-8 |+| Category | Interface |+| Pins | 8 |++## Ordering variants++- `SN65HVD1176DR`+- `SN65HVD1176DRD`++## CAD (KiCad official)++- Symbol: `SN65HVD1176DR`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/sn65hvd1176.pdf) (32 pp, sha256 `50d6038b4fdc42de`, 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).++[Datasheet PDF](docs/sn65hvd1176dr-datasheet.pdf)

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