GM3085E

@@ -0,0 +1,47 @@+# GM3085E++**GATEMODE** · RS-485 / RS-422 ICs · SOP-8++GM3085E from GATEMODE, 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 | RO | output | Receiver output. When /RE is low, if A-B >= -50mV then RO outputs high; if A-B <= -200mV then RO outputs low. High-Z when /RE is high. |+| 2 | /RE | input | Receiver output enable (active-low). When /RE is low, RO output is active. When /RE is high, RO is in high-impedance state. When /RE is high AND DE is low, the device enters low-power shutdown mode. |+| 3 | DE | input | Driver output enable (active-high). When DE is high, driver outputs A/B are active. When DE is low, driver outputs are high-impedance. When /RE is high AND DE is low, the device enters low-power shutdown mode. |+| 4 | DI | input | Driver input. When DE is high, a low on DI drives A low and B high; a high on DI drives A high and B low. VIH >= 2.0V, VIL <= 0.8V, 100mV hysteresis. |+| 5 | GND | power_in | Ground reference for the device. |+| 6 | A | bidirectional | Non-inverting receiver input and non-inverting driver output (RS-485/RS-422 differential bus line A). ±15kV HBM ESD protected. Absolute max ±13V. |+| 7 | B | bidirectional | Inverting receiver input and inverting driver output (RS-485/RS-422 differential bus line B). ±15kV HBM ESD protected. Absolute max ±13V. |+| 8 | VCC | power_in | Positive supply terminal. Operating range 3.0V <= VCC <= 5.5V. Absolute max +7V. Decouple with 0.1uF to GND. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | GATEMODE |+| Package | SOP-8 |+| Category | Interface |+| Pins | 8 |++## Ordering variants++- `GM3085E`++## CAD (KiCad official)++- Symbol: `GM3085E`+- 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:** [GATEMODE datasheet](docs/gm3085e-datasheet.pdf) (10 pp, sha256 `fcd5bc74db96cbaf`, 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/gm3085e-datasheet.pdf)

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