MAX13085

@@ -0,0 +1,47 @@+# MAX13085++**Shanghai Siproin Microelectronics** · RS-485/RS-422 ICs · SOP-8++MAX13085 from Shanghai Siproin Microelectronics, 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. If A-B ≥ -0.05V, RO is high; if A-B ≤ -0.2V, RO is low; if A and B are open or shorted, RO is high (fail-safe). High-impedance when /RE is high. |+| 2 | /RE | input | Receiver output enable (active low). RO is enabled when /RE is low and high-impedance when /RE is high. Driving /RE high while DE is low places the device into low-current shutdown. |+| 3 | DE | input | Driver output enable (active high). Driver outputs A and B are enabled when DE is high and are high-impedance when DE is low. |+| 4 | DI | input | Driver input. A low on DI forces output A low and output B high; a high on DI forces output A high and output B low. VIH ≥ 2.0V, VIL ≤ 0.8V. |+| 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 bus line A). Protected to ±15kV HBM ESD; common-mode range -7V to +12V. |+| 7 | B | bidirectional | Inverting receiver input and inverting driver output (RS-485/RS-422 bus line B). Protected to ±15kV HBM ESD; common-mode range -7V to +12V. |+| 8 | VDD | power_in | Positive supply voltage. Nominal +5V (±5%); +3.3V operation supported with maximum recommended data rate of 500kbps. Absolute maximum -0.3V to +7V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Shanghai Siproin Microelectronics |+| Package | SOP-8 |+| Category | Comm/UART |+| Pins | 8 |++## Ordering variants++- `MAX13085`++## CAD (KiCad official)++- Symbol: `MAX13085`+- 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:** [Shanghai Siproin Microelectronics datasheet](docs/max13085-datasheet.pdf) (12 pp, sha256 `8cef423a3a319af6`, 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/max13085-datasheet.pdf)

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