SIT3088EESA

@@ -0,0 +1,47 @@+# SIT3088EESA++**SIT** · RS-485 / RS-422 ICs · SOP-8++SIT3088EESA 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. With /RE low, RO goes high when A−B ≥ −10mV and low when A−B ≤ −200mV. High-impedance when /RE is high. |+| 2 | /RE | input | Receiver Output Enable (active-low). Drive /RE low to enable RO; RO is high-impedance when /RE is high. Driving /RE high with DE low enters low-power shutdown mode. |+| 3 | DE | input | Driver Output Enable (active-high). Drive DE high to enable driver outputs on A/B; outputs are high-impedance when DE is low. Driving /RE high and DE low enters low-power shutdown mode. |+| 4 | DI | input | Driver Input. With DE high, DI low forces A low and B high; DI high forces A high and B low. TTL/CMOS-compatible logic input (VIH ≥ 2.0V, VIL ≤ 0.8V). |+| 5 | GND | power_in | Ground reference for the device (0V). |+| 6 | A | bidirectional | Non-inverting differential bus pin: non-inverting receiver input and non-inverting driver output. RS-485/RS-422 bus line, ±15V fault-tolerant, 15kV HBM ESD-protected. |+| 7 | B | bidirectional | Inverting differential bus pin: inverting receiver input and inverting driver output. RS-485/RS-422 bus line, ±15V fault-tolerant, 15kV HBM ESD-protected. |+| 8 | VCC | power_in | Positive supply, 3.0V to 5.5V operating range (absolute max +6.5V). Typical ICC ≈ 240-280µA active, ≈0.2µA in shutdown. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | SIT |+| Package | SOP-8 |+| Category | Interface |+| Pins | 8 |++## Ordering variants++- `SIT3088EESAEESA`++## CAD (KiCad official)++- Symbol: `SIT3088EESA`+- 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/sit3088eesa-datasheet.pdf) (19 pp, sha256 `7b3ff7bae541908c`, 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/sit3088eesa-datasheet.pdf)

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