ADM485ARZ

@@ -0,0 +1,47 @@+# ADM485ARZ++**UMW** · RS-485 / RS-422 ICs · SOP-8++ADM485ARZ 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 | RO | output | Receiver Output. CMOS logic output driven from the A/B differential inputs. Outputs logic HIGH when (A-B) >= +0.2V, LOW when (A-B) <= -0.2V, and HIGH when the differential inputs are open (fail-safe). Goes to high-impedance when RE is HIGH. VOH >= 3.5V @ -4mA, VOL <= 0.4V @ 4mA. |+| 2 | RE | input | Receiver Output Enable, active LOW. When LOW the receiver output RO is enabled; when HIGH RO is placed in high-impedance (three-state). CMOS-compatible input, VIH >= 2V, VIL <= 0.8V, IIN <= +/-2 uA. |+| 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 (three-state). CMOS-compatible input, VIH >= 2V, VIL <= 0.8V, IIN <= +/-2 uA. |+| 4 | DI | input | Driver Input. CMOS logic input; a HIGH on DI drives A HIGH and B LOW, a LOW on DI drives A LOW and B HIGH (when DE is HIGH). VIH >= 2V, VIL <= 0.8V, IIN <= +/-2 uA. |+| 5 | GND | power_in | Ground reference (0V) for all signals and the supply. |+| 6 | A | bidirectional | Non-inverting differential bus I/O. Driver non-inverting output when DE is HIGH; receiver non-inverting input when DE is LOW. Common-mode range -7V to +12V, input resistance >= 12 kOhm, driver differential output >= 1.5V into 27 Ohm (RS-485). |+| 7 | B | bidirectional | Inverting differential bus I/O. Driver inverting output when DE is HIGH; receiver inverting input when DE is LOW. Common-mode range -7V to +12V, input resistance >= 12 kOhm. |+| 8 | VCC | power_in | Positive supply input, +5V nominal (4.75V to 5.25V). Supply current typ. 1 mA (outputs enabled), 0.6 mA (outputs disabled), 2.2 mA max. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | UMW |+| Package | SOP-8 |+| Category | Interface |+| Pins | 8 |++## Ordering variants++- `ADM485ARZARZ`++## CAD (KiCad official)++- Symbol: `ADM485ARZ`+- 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/adm485arz-datasheet.pdf) (9 pp, sha256 `9d70c6bbd515fd15`, 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/adm485arz-datasheet.pdf)

@@ -0,0 +1,34 @@+{+  "slug": "adm485arz",+  "version": "0.1.0",+  "type": "component",+  "description": "UMW RS-485 / RS-422 ICs, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+  "tags": [+    "component",+    "interface",+    "adm485arz"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "adm485arz.kicad_sym",+    "adm485arz.kicad_mod",+    "adm485arz.glb",+    "adm485arz.step",+    "adm485arz.lbr",+    "docs/hero.png",+    "docs/adm485arz-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file