component
MAX485ESA
Public Made by Adomby adom
UMW RS-485 / RS-422 ICs, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
← Commit history
README.md+2−2@@ -2,7 +2,7 @@ **UMW** · RS-485 / RS-422 ICs · SOP-8 -MAX485ESA from UMW, in a SOP-8. Pinout and pin descriptions extracted from the datasheet (via LCSC) by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.+MAX485ESA from UMW, in a SOP-8. Pinout and pin descriptions extracted from the datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD. ## Pinout @@ -40,7 +40,7 @@ MAX485ESA from UMW, in a SOP-8. Pinout and pin descriptions extracted from the d Data extracted from the manufacturer datasheet, not a distributor listing: -- **Datasheet:** [UMW datasheet](https://datasheet.lcsc.com/datasheet/pdf/ecf29a5309225a8937bcd2e9d434361d.pdf) (9 pp, sha256 `e4e2116cdfbdf558`, retrieved 2026-08-17, tier: lcsc)+- **Datasheet:** [UMW datasheet](docs/max485esa-datasheet.pdf) (9 pp, sha256 `e4e2116cdfbdf558`, 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).
page.json+9−12@@ -18,7 +18,7 @@ "pin_count": 8, "category": "Interface", "subcategory": "RS-485 / RS-422 ICs",- "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/ecf29a5309225a8937bcd2e9d434361d.pdf",+ "datasheet": "docs/max485esa-datasheet.pdf", "parts": { "symbol": "max485esa.kicad_sym", "footprint": "max485esa.kicad_mod",@@ -38,19 +38,19 @@ "number": "2", "name": "~RE", "type": "input",- "description": "Receiver Output Enable, active-low. Drive low to enable receiver (RO active), drive high to place RO into high-impedance state. CMOS logic input referenced to VCC (VIH >= 2V, VIL <= 0.8V, IIN = ±2µA max)."+ "description": "Receiver Output Enable, active-low. Drive low to enable receiver (RO active), drive high to place RO into high-impedance state. CMOS logic input referenced to VCC (VIH >= 2V, VIL <= 0.8V, IIN = \u00b12\u00b5A max)." }, { "number": "3", "name": "DE", "type": "input",- "description": "Driver Output Enable, active-high. Drive high to enable the RS-485 driver outputs A and B, drive low to place A and B into high-impedance. CMOS logic input (VIH >= 2V, VIL <= 0.8V, IIN = ±2µA max)."+ "description": "Driver Output Enable, active-high. Drive high to enable the RS-485 driver outputs A and B, drive low to place A and B into high-impedance. CMOS logic input (VIH >= 2V, VIL <= 0.8V, IIN = \u00b12\u00b5A max)." }, { "number": "4", "name": "DI", "type": "input",- "description": "Driver Input. CMOS logic input carrying the transmit data to be driven onto the RS-485 differential bus. When DE=1: DI=1 forces A=1/B=0, DI=0 forces A=0/B=1. VIH >= 2V, VIL <= 0.8V, IIN = ±2µA max."+ "description": "Driver Input. CMOS logic input carrying the transmit data to be driven onto the RS-485 differential bus. When DE=1: DI=1 forces A=1/B=0, DI=0 forces A=0/B=1. VIH >= 2V, VIL <= 0.8V, IIN = \u00b12\u00b5A max." }, { "number": "5",@@ -62,25 +62,25 @@ "number": "6", "name": "A", "type": "bidirectional",- "description": "Non-inverting RS-485/RS-422 differential bus line. Acts as a driver output when DE=1 and as a receiver input when RE is low. Absolute range -8V to +12.5V; common-mode range -7V to +12V; receiver input resistance >= 12kΩ."+ "description": "Non-inverting RS-485/RS-422 differential bus line. Acts as a driver output when DE=1 and as a receiver input when RE is low. Absolute range -8V to +12.5V; common-mode range -7V to +12V; receiver input resistance >= 12k\u03a9." }, { "number": "7", "name": "B", "type": "bidirectional",- "description": "Inverting RS-485/RS-422 differential bus line. Acts as a driver output when DE=1 and as a receiver input when RE is low. Absolute range -8V to +12.5V; common-mode range -7V to +12V; receiver input resistance >= 12kΩ."+ "description": "Inverting RS-485/RS-422 differential bus line. Acts as a driver output when DE=1 and as a receiver input when RE is low. Absolute range -8V to +12.5V; common-mode range -7V to +12V; receiver input resistance >= 12k\u03a9." }, { "number": "8", "name": "VCC", "type": "power_in",- "description": "Positive supply input, 5V ±5%. No-load supply current typically 500µA (DE=VCC) or 300µA (DE=0, RE tied high or low). Absolute maximum 7V. Bypass to GND with a 0.1µF ceramic close to the pin."+ "description": "Positive supply input, 5V \u00b15%. No-load supply current typically 500\u00b5A (DE=VCC) or 300\u00b5A (DE=0, RE tied high or low). Absolute maximum 7V. Bypass to GND with a 0.1\u00b5F ceramic close to the pin." } ], "provenance": { "extractor": "ds2sf", "datasheet": {- "url": "https://datasheet.lcsc.com/datasheet/pdf/ecf29a5309225a8937bcd2e9d434361d.pdf",+ "url": "docs/max485esa-datasheet.pdf", "pages": 9, "sha256": "e4e2116cdfbdf558", "source_tier": "lcsc"@@ -138,8 +138,5 @@ "docs/max485esa-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ],- "visibility": {- "public": true- }+ ] }