component
WK2204-IQNG
Public Made by Adomby adom
WEIKAI Interface - Specialized, QFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+62@@ -0,0 +1,62 @@+# WK2204-IQNG++**WEIKAI** · Interface - Specialized · QFN-24-EP(4x4)++WK2204-IQNG from WEIKAI, in a QFN-24-EP(4x4). 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 | OSCI | input | Crystal oscillator input; requires parallel 1MΩ startup resistor with oscillator. |+| 2 | OSCO | output | Crystal oscillator output. |+| 3 | MP3 | bidirectional | Multifunction pin: SSEL (SPI chip select, active low) in SPI mode, IA1 (IIC device address high) in IIC mode, or IR (UART infrared mode: 0=infrared, 1=normal UART, default high) in UART mode. |+| 4 | MP2 | bidirectional | Multifunction pin: SCLK (SPI clock input) in SPI mode, SCL (IIC clock input) in IIC mode, or MRX (UART main port receive) in UART mode. |+| 5 | MP1 | bidirectional | Multifunction pin: MOSI (SPI slave data input) in SPI mode, IA0 (IIC device address low) in IIC mode, or MTX (UART main port transmit) in UART mode. |+| 6 | MP0 | bidirectional | Multifunction pin: MISO (SPI slave data output) in SPI mode, SDA (IIC data line) in IIC mode, or NC (no connection) in UART mode. |+| 7 | RTS4 | output | Sub-channel 4 Request To Send output, active low; indicates receive ready and used for RS-485 automatic transceiver control. |+| 8 | RX4 | input | Sub-channel 4 serial data input. |+| 9 | TX4 | output | Sub-channel 4 serial data output. |+| 10 | CTS4 | input | Sub-channel 4 Clear To Send input, active low; indicates connected UART is ready to receive data. |+| 11 | RSTN | input | Hardware reset input, active low. |+| 12 | IRQ | output | Interrupt output signal, active low; external pull-up resistor (5.1kΩ typical) recommended. |+| 13 | CTS2 | input | Sub-channel 2 Clear To Send input, active low; indicates connected UART is ready to receive data. |+| 14 | TX2 | output | Sub-channel 2 serial data output. |+| 15 | RX2 | input | Sub-channel 2 serial data input. |+| 16 | RTS2 | output | Sub-channel 2 Request To Send output, active low; indicates receive ready and used for RS-485 automatic transceiver control. |+| 17 | GND | power_in | Power ground. |+| 18 | MD0 | input | Main interface mode selection bit 0 (MD1MD0: 00=SPI, 10=IIC, 11=UART); internal pull-up circuit, defaults high. |+| 19 | MD1 | input | Main interface mode selection bit 1 (MD1MD0: 00=SPI, 10=IIC, 11=UART); internal pull-up circuit, defaults high. |+| 20 | TX1 | output | Sub-channel 1 serial data output. |+| 21 | RX1 | input | Sub-channel 1 serial data input. |+| 22 | TX3 | output | Sub-channel 3 serial data output. |+| 23 | RX3 | input | Sub-channel 3 serial data input. |+| 24 | VCC | power_in | Power supply input, operating range 2.0V to 3.6V. |+| 25 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | WEIKAI |+| Package | QFN-24-EP(4x4) |+| Category | Interface |+| Pins | 25 |++## CAD (KiCad official)++- Symbol: `WK2204-IQNG`+- Footprint: `Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm`+- 3D model: QFN-24-EP(4x4) (KiCad packages3D, STEP)+- 3D model files: `wk2204-iqng-etched.step` / `wk2204-iqng-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `wk2204-iqng.step` / `wk2204-iqng.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [WEIKAI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756848210214166528) (42 pp, sha256 `6f7a3ea82e2ab396`, retrieved 2026-09-22, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/wk2204-iqng-datasheet.pdf)
page.jsonadded+245@@ -0,0 +1,245 @@+{+ "slug": "wk2204-iqng",+ "version": "0.1.0",+ "type": "component",+ "description": "WEIKAI Interface - Specialized, QFN-24-EP(4x4). Datasheet-verified pinout, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "interface",+ "wk2204-iqng",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "wk2204-iqng.kicad_sym",+ "wk2204-iqng.kicad_mod",+ "wk2204-iqng.glb",+ "wk2204-iqng.step",+ "wk2204-iqng.lbr",+ "docs/hero.png",+ "docs/wk2204-iqng-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "WK2204-IQNG",+ "manufacturer": "WEIKAI",+ "package": "QFN-24-EP(4x4)",+ "pin_count": 25,+ "category": "Interface",+ "subcategory": "Interface - Specialized",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756848210214166528",+ "parts": {+ "symbol": "wk2204-iqng.kicad_sym",+ "footprint": "wk2204-iqng.kicad_mod",+ "model_3d": "wk2204-iqng-etched.glb",+ "model_3d_plain": "wk2204-iqng.glb",+ "model_3d_step": "wk2204-iqng-etched.step",+ "model_3d_step_plain": "wk2204-iqng.step",+ "lbr": "wk2204-iqng.lbr"+ },+ "distributor_links": {+ "lcsc": "C401040"+ },+ "pins": [+ {+ "number": "1",+ "name": "OSCI",+ "type": "input",+ "description": "Crystal oscillator input; requires parallel 1MΩ startup resistor with oscillator."+ },+ {+ "number": "2",+ "name": "OSCO",+ "type": "output",+ "description": "Crystal oscillator output."+ },+ {+ "number": "3",+ "name": "MP3",+ "type": "bidirectional",+ "description": "Multifunction pin: SSEL (SPI chip select, active low) in SPI mode, IA1 (IIC device address high) in IIC mode, or IR (UART infrared mode: 0=infrared, 1=normal UART, default high) in UART mode."+ },+ {+ "number": "4",+ "name": "MP2",+ "type": "bidirectional",+ "description": "Multifunction pin: SCLK (SPI clock input) in SPI mode, SCL (IIC clock input) in IIC mode, or MRX (UART main port receive) in UART mode."+ },+ {+ "number": "5",+ "name": "MP1",+ "type": "bidirectional",+ "description": "Multifunction pin: MOSI (SPI slave data input) in SPI mode, IA0 (IIC device address low) in IIC mode, or MTX (UART main port transmit) in UART mode."+ },+ {+ "number": "6",+ "name": "MP0",+ "type": "bidirectional",+ "description": "Multifunction pin: MISO (SPI slave data output) in SPI mode, SDA (IIC data line) in IIC mode, or NC (no connection) in UART mode."+ },+ {+ "number": "7",+ "name": "RTS4",+ "type": "output",+ "description": "Sub-channel 4 Request To Send output, active low; indicates receive ready and used for RS-485 automatic transceiver control."+ },+ {+ "number": "8",+ "name": "RX4",+ "type": "input",+ "description": "Sub-channel 4 serial data input."+ },+ {+ "number": "9",+ "name": "TX4",+ "type": "output",+ "description": "Sub-channel 4 serial data output."+ },+ {+ "number": "10",+ "name": "CTS4",+ "type": "input",+ "description": "Sub-channel 4 Clear To Send input, active low; indicates connected UART is ready to receive data."+ },+ {+ "number": "11",+ "name": "RSTN",+ "type": "input",+ "description": "Hardware reset input, active low."+ },+ {+ "number": "12",+ "name": "IRQ",+ "type": "output",+ "description": "Interrupt output signal, active low; external pull-up resistor (5.1kΩ typical) recommended."+ },+ {+ "number": "13",+ "name": "CTS2",+ "type": "input",+ "description": "Sub-channel 2 Clear To Send input, active low; indicates connected UART is ready to receive data."+ },+ {+ "number": "14",+ "name": "TX2",+ "type": "output",+ "description": "Sub-channel 2 serial data output."+ },+ {+ "number": "15",+ "name": "RX2",+ "type": "input",+ "description": "Sub-channel 2 serial data input."+ },+ {+ "number": "16",+ "name": "RTS2",+ "type": "output",+ "description": "Sub-channel 2 Request To Send output, active low; indicates receive ready and used for RS-485 automatic transceiver control."+ },+ {+ "number": "17",+ "name": "GND",+ "type": "power_in",+ "description": "Power ground."+ },+ {+ "number": "18",+ "name": "MD0",+ "type": "input",+ "description": "Main interface mode selection bit 0 (MD1MD0: 00=SPI, 10=IIC, 11=UART); internal pull-up circuit, defaults high."+ },+ {+ "number": "19",+ "name": "MD1",+ "type": "input",+ "description": "Main interface mode selection bit 1 (MD1MD0: 00=SPI, 10=IIC, 11=UART); internal pull-up circuit, defaults high."+ },+ {+ "number": "20",+ "name": "TX1",+ "type": "output",+ "description": "Sub-channel 1 serial data output."+ },+ {+ "number": "21",+ "name": "RX1",+ "type": "input",+ "description": "Sub-channel 1 serial data input."+ },+ {+ "number": "22",+ "name": "TX3",+ "type": "output",+ "description": "Sub-channel 3 serial data output."+ },+ {+ "number": "23",+ "name": "RX3",+ "type": "input",+ "description": "Sub-channel 3 serial data input."+ },+ {+ "number": "24",+ "name": "VCC",+ "type": "power_in",+ "description": "Power supply input, operating range 2.0V to 3.6V."+ },+ {+ "number": "25",+ "name": "EP",+ "type": "passive",+ "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-4-6",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "exposed pad 25 added from the footprint"+ ],+ "pages_sent": 42,+ "cost_usd": 0.387,+ "at": "2026-09-22T00:51:08"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756848210214166528",+ "pages": 42,+ "sha256": "6f7a3ea82e2ab396",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 25,+ "described": 25,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}