SIT65HVD08DR

@@ -0,0 +1,50 @@+# SIT65HVD08DR++**SIT** · RS-485 / RS-422 ICs · SOP-8++SIT65HVD08DR from SIT, 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. Logic-high when A−B ≥ +200 mV, logic-low when A−B ≤ −200 mV. High-impedance (tri-state) when /RE is high. VOH ≥ VCC−1.5 V at IOUT = −4 mA; VOL ≤ 0.4 V at IOUT = +4 mA. |+| 2 | /RE | input | Receiver output enable, active-low. Logic-low enables the receiver output RO; logic-high places RO in a high-impedance state. VIH ≥ 2.0 V, VIL ≤ 0.8 V, input current ±2 µA max. |+| 3 | DE | input | Driver output enable, active-high. Logic-high enables the differential driver outputs on pins A and B; logic-low places the driver in a high-impedance state. With DE=0 and /RE=high the device enters low-current shutdown (typ. 0.1-0.4 µA). |+| 4 | DI | input | Driver input. When the driver is enabled, a logic-low on DI forces A low and B high; a logic-high on DI forces A high and B low. VIH ≥ 2.0 V, VIL ≤ 0.8 V. |+| 5 | GND | power_in | Ground reference (0 V). |+| 6 | A | bidirectional | Non-inverting RS-485/RS-422 bus pin. Driver output A when DE is high; receiver input A when /RE is low. Tolerates −15 V to +15 V bus fault voltage and ±16 kV contact-discharge ESD. Receiver input impedance ≥ 96 kΩ (1/8 unit load). |+| 7 | B | bidirectional | Inverting RS-485/RS-422 bus pin. Driver output B when DE is high; receiver input B when /RE is low. Tolerates −15 V to +15 V bus fault voltage and ±16 kV contact-discharge ESD. Receiver input impedance ≥ 96 kΩ (1/8 unit load). |+| 8 | VCC | power_in | Power supply, 3.0 V to 5.5 V nominal (absolute max +7 V). Typical supply current 430-510 µA active; ≤ 10 µA in shutdown. Bypass with a 100 nF ceramic capacitor to GND close to the pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | SIT |+| Package | SOP-8 |+| Category | Interface |+| Pins | 8 |++## Ordering variants++Same part, different packaging or reel option.++- `SIT65HVD08DR`+- `SIT65HVD08DRD`++## CAD (KiCad official)++- Symbol: `SIT65HVD08DR`+- 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:** [SIT datasheet](docs/sit65hvd08dr-datasheet.pdf) (14 pp, sha256 `c6dca4fc6d9f01d7`, 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/sit65hvd08dr-datasheet.pdf)

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