HGX3088EIM

@@ -0,0 +1,57 @@+# HGX3088EIM++**HGSEMI** · RS-485/RS-422 ICs · SOP-8++HGX3088EIM from HGSEMI, 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 and (A-B) ≥ -50mV, RO is driven high; when (A-B) ≤ -200mV, RO is driven low. High-Z when receiver is disabled. |+| 2 | RE | input | Receiver output enable, active-low. RO is enabled when RE is low; RO is high-impedance when RE is high. When RE is high AND DE is low the device enters low-power shutdown mode. Hot-swap input structure. |+| 3 | DE | input | Driver output enable, active-high. Driver outputs A/B are enabled when DE is high and high-impedance when DE is low. When RE is high AND DE is low the device enters low-power shutdown mode. Hot-swap input structure. |+| 4 | DI | input | Driver input. When DE is high, DI low drives A low and B high; DI high drives A high and B low. VIH = 2V min, VIL = 0.8V max. |+| 5 | GND | power_in | Ground reference. |+| 6 | A | bidirectional | Non-inverting receiver input AND non-inverting driver output (half-duplex bus pin). Tie through the RS-485 termination network to the differential bus. Absolute max: -7V to +12V. ±16kV IEC 61000-4-2 contact ESD protected. |+| 7 | B | bidirectional | Inverting receiver input AND inverting driver output (half-duplex bus pin). Tie through the RS-485 termination network to the differential bus. Absolute max: -7V to +12V. ±16kV IEC 61000-4-2 contact ESD protected. |+| 8 | VCC | power_in | Positive supply, 4.5V ≤ VCC ≤ 5.5V. Bypass to GND with a 0.1µF ceramic capacitor. Absolute max 6V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | HGSEMI |+| Package | SOP-8 |+| Category | Comm/UART |+| Pins | 8 |++## Ordering variants++Same part, different packaging or reel option.++- `HGX3088EIM/TR`+- `HGX3088ECM/TR`+- `HGX3088EIN`+- `HGX3088ECN`+- `HGX3088EIMM/TR`+- `HGX3088ECMM/TR`+- `HGX3088EIM8/TR`+- `HGX3088ECM8/TR`++## CAD (KiCad official)++- Symbol: `HGX3088EIM`+- 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:** [HGSEMI datasheet](docs/hgx3088eim-datasheet.pdf) (28 pp, sha256 `f6d3ad97a8f240e8`, retrieved 2026-08-17, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **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/hgx3088eim-datasheet.pdf)

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