XL9555

@@ -0,0 +1,66 @@+# XL9555++**XINLUDA** · I/O Expanders · TSSOP-24++XL9555 from XINLUDA, in a TSSOP-24. 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 | INT | output | Active-LOW open-drain interrupt output. Asserted when any input state differs from the corresponding Input Port register value. Requires an external pull-up resistor to VCC. |+| 2 | A1 | input | Hardware I2C address bit 1. Tie directly to VCC or GND to set the device slave address; must not float and must not change while powered. |+| 3 | A2 | input | Hardware I2C address bit 2. Tie directly to VCC or GND to set the device slave address; must not float and must not change while powered. |+| 4 | P00 | bidirectional | Port 0 bit 0 general-purpose I/O. Push-pull output; input at power-on reset. XL9555 has an internal ~100 kohm pull-up to VCC on this pin. |+| 5 | P01 | bidirectional | Port 0 bit 1 general-purpose I/O. Push-pull output; input at power-on reset. XL9555 has an internal ~100 kohm pull-up to VCC on this pin. |+| 6 | P02 | bidirectional | Port 0 bit 2 general-purpose I/O. Push-pull output; input at power-on reset. XL9555 has an internal ~100 kohm pull-up to VCC on this pin. |+| 7 | P03 | bidirectional | Port 0 bit 3 general-purpose I/O. Push-pull output; input at power-on reset. XL9555 has an internal ~100 kohm pull-up to VCC on this pin. |+| 8 | P04 | bidirectional | Port 0 bit 4 general-purpose I/O. Push-pull output; input at power-on reset. XL9555 has an internal ~100 kohm pull-up to VCC on this pin. |+| 9 | P05 | bidirectional | Port 0 bit 5 general-purpose I/O. Push-pull output; input at power-on reset. XL9555 has an internal ~100 kohm pull-up to VCC on this pin. |+| 10 | P06 | bidirectional | Port 0 bit 6 general-purpose I/O. Push-pull output; input at power-on reset. XL9555 has an internal ~100 kohm pull-up to VCC on this pin. |+| 11 | P07 | bidirectional | Port 0 bit 7 general-purpose I/O. Push-pull output; input at power-on reset. XL9555 has an internal ~100 kohm pull-up to VCC on this pin. |+| 12 | GND | power_in | Supply ground reference (0 V). |+| 13 | P10 | bidirectional | Port 1 bit 0 general-purpose I/O. Push-pull output; input at power-on reset. XL9555 has an internal ~100 kohm pull-up to VCC on this pin. |+| 14 | P11 | bidirectional | Port 1 bit 1 general-purpose I/O. Push-pull output; input at power-on reset. XL9555 has an internal ~100 kohm pull-up to VCC on this pin. |+| 15 | P12 | bidirectional | Port 1 bit 2 general-purpose I/O. Push-pull output; input at power-on reset. XL9555 has an internal ~100 kohm pull-up to VCC on this pin. |+| 16 | P13 | bidirectional | Port 1 bit 3 general-purpose I/O. Push-pull output; input at power-on reset. XL9555 has an internal ~100 kohm pull-up to VCC on this pin. |+| 17 | P14 | bidirectional | Port 1 bit 4 general-purpose I/O. Push-pull output; input at power-on reset. XL9555 has an internal ~100 kohm pull-up to VCC on this pin. |+| 18 | P15 | bidirectional | Port 1 bit 5 general-purpose I/O. Push-pull output; input at power-on reset. XL9555 has an internal ~100 kohm pull-up to VCC on this pin. |+| 19 | P16 | bidirectional | Port 1 bit 6 general-purpose I/O. Push-pull output; input at power-on reset. XL9555 has an internal ~100 kohm pull-up to VCC on this pin. |+| 20 | P17 | bidirectional | Port 1 bit 7 general-purpose I/O. Push-pull output; input at power-on reset. XL9555 has an internal ~100 kohm pull-up to VCC on this pin. |+| 21 | A0 | input | Hardware I2C address bit 0. Tie directly to VCC or GND to set the device slave address; must not float and must not change while powered. |+| 22 | SCL | input | I2C-bus / SMBus serial clock input. Requires an external pull-up resistor to VCC. Standard-mode (100 kHz) and Fast-mode (400 kHz) capable. |+| 23 | SDA | bidirectional | I2C-bus / SMBus serial data line (open-drain). Requires an external pull-up resistor to VCC. |+| 24 | VCC | power_in | Positive supply voltage, 2.3 V to 5.5 V (absolute max 6 V). Bypass locally with a ceramic decoupling capacitor to GND. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | XINLUDA |+| Package | TSSOP-24 |+| Category | Interface |+| Pins | 24 |++## Ordering variants++- `XL9555`+- `XL9555D`+- `XL9555SS`+- `XL9555QF24`++## CAD (KiCad official)++- Symbol: `XL9555`+- Footprint: `Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm`+- 3D model: TSSOP-24 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [XINLUDA datasheet](docs/xl9555-datasheet.pdf) (25 pp, sha256 `80ea36f92c4bf704`, 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/xl9555-datasheet.pdf)

@@ -0,0 +1,34 @@+{+  "slug": "xl9555",+  "version": "0.1.0",+  "type": "component",+  "description": "XINLUDA I/O Expanders, TSSOP-24. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+  "tags": [+    "component",+    "interface",+    "xl9555"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "xl9555.kicad_sym",+    "xl9555.kicad_mod",+    "xl9555.glb",+    "xl9555.step",+    "xl9555.lbr",+    "docs/hero.png",+    "docs/xl9555-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file