SN65LBC184DR

@@ -0,0 +1,49 @@+# SN65LBC184DR++**UMW** · RS-485 / RS-422 ICs · SOP-8++SN65LBC184DR from UMW, 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 | R | output | Receiver output. Drives a logic-level representation of the differential bus (A-B): H when VID >= 0.2 V, L when VID <= -0.2 V, high-impedance when /RE is high. Fail-safe high output when bus inputs are open. |+| 2 | /RE | input | Receiver output enable, active low. When low the receiver R is enabled; when high R is placed in high-impedance state. |+| 3 | DE | input | Driver output enable, active high. When high the differential driver outputs A and B are enabled; when low they are placed in high-impedance state. |+| 4 | D | input | Driver data input. When DE is high, a logic H on D drives A high and B low; a logic L on D drives A low and B high. Ignored when DE is low. |+| 5 | GND | power_in | Device ground reference. All voltage measurements (except differential bus voltage) are referenced to this pin. |+| 6 | A | bidirectional | Non-inverting differential bus I/O. Driver non-inverting output and receiver non-inverting input, with integrated transient voltage suppression (400-W surge, +/-15 V continuous common-mode range) and 1/4 unit-load input impedance. |+| 7 | B | bidirectional | Inverting differential bus I/O. Driver inverting output and receiver inverting input, with integrated transient voltage suppression (400-W surge, +/-15 V continuous common-mode range) and 1/4 unit-load input impedance. |+| 8 | VCC | power_in | Supply voltage input, +5 V nominal (absolute maximum -0.5 V to 7 V). Disabled supply current is 300 uA max. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | UMW |+| Package | SOP-8 |+| Category | Interface |+| Pins | 8 |++## Ordering variants++- `SN65LBC184DRD`+- `SN65LBC184DRDR`+- `SN65LBC184DRP`++## CAD (KiCad official)++- Symbol: `SN65LBC184DR`+- 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:** [UMW datasheet](docs/sn65lbc184dr-datasheet.pdf) (23 pp, sha256 `53d77bcd7a987620`, 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/sn65lbc184dr-datasheet.pdf)

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