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SN65176BDR
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UMW RS-485 / RS-422 ICs, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+48@@ -0,0 +1,48 @@+# SN65176BDR++**UMW** · RS-485 / RS-422 ICs · SOP-8++SN65176BDR from UMW, in a SOP-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 output (RO). Logic-level (TTL/CMOS) data output from the RS-485 receiver. VOH >= 2.7 V at IOH = -400 uA; VOL <= 0.45 V at IOL = 8 mA. High-impedance when RE is deasserted (high). |+| 2 | RE | input | Receiver Enable (active low). Drive low to enable receiver output R; drive high to tri-state R. TTL input, VIH >= 2.0 V, VIL <= 0.8 V. |+| 3 | DE | input | Driver Enable (active high). Drive high to enable the differential driver outputs A/B; drive low to tri-state the driver. TTL input, VIH >= 2.0 V, VIL <= 0.8 V. |+| 4 | D | input | Driver input (DI). Logic-level (TTL/CMOS) data input to the RS-485 driver. When DE is high, D=high drives A>B and D=low drives A<B. |+| 5 | GND | power_in | Device ground reference (0 V). Connect to system ground. |+| 6 | A | bidirectional | Non-inverting RS-422/RS-485 differential bus line. Driver output when DE=1, receiver input when RE=0. Withstands -7 V to +12 V common-mode; differential threshold |VIT| = 0.2 V typical with ~50 mV hysteresis. |+| 7 | B | bidirectional | Inverting RS-422/RS-485 differential bus line. Driver output when DE=1, receiver input when RE=0. Withstands -7 V to +12 V common-mode; forms the differential pair with A. |+| 8 | VCC | power_in | Supply input, +5 V nominal (4.75 V to 5.25 V recommended; 7 V absolute max). Typical ICC = 42 mA outputs enabled, 26 mA disabled. Bypass with a local decoupling capacitor to GND. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | UMW |+| Package | SOP-8 |+| Category | Interface |+| Pins | 8 |++## Ordering variants++- `SN65176BDRDR`+- `SN65176BDRD`++## CAD (KiCad official)++- Symbol: `SN65176BDR`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [UMW datasheet](docs/sn65176bdr-datasheet.pdf) (12 pp, sha256 `03ef2b23ed23a2cd`, retrieved 2026-08-17, tier: lcsc)+- **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/sn65176bdr-datasheet.pdf)
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