component
PCF8575 16-Bit I2C I/O Expander
Public Made by Adomby adom
16-bit quasi-bidirectional I/O expander over I2C with an interrupt output.
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page.json+217−8@@ -1,8 +1,11 @@ {+ "schema_version": 1,+ "type": "component", "slug": "pcf8575",+ "title": "PCF8575 16-Bit I2C I/O Expander",+ "brief": "16-bit quasi-bidirectional I/O expander over I2C with an interrupt output.", "version": "0.1.0",- "type": "component",- "description": "16-bit quasi-bidirectional I/O expander over I2C with an interrupt output.",+ "license": "CC-BY-SA-4.0", "tags": [ "gpio-expander", "i2c",@@ -12,6 +15,217 @@ "ti", "ssop-24" ],+ "component": {+ "mpn": "PCF8575",+ "manufacturer": "Texas Instruments",+ "package": "SSOP-24",+ "pin_count": 24,+ "category": "Interface",+ "subcategory": "I/O Expander",+ "datasheet": "https://www.ti.com/lit/ds/symlink/pcf8575.pdf",+ "parts": {+ "symbol": "pcf8575.kicad_sym",+ "footprint": "pcf8575.kicad_mod",+ "model_3d": "pcf8575.glb",+ "model_3d_step": "pcf8575.step"+ },+ "distributor_links": {},+ "pins": [+ {+ "number": "1",+ "name": "INT",+ "type": "output",+ "description": "Interrupt output (active-low, open-drain). Connect to VCC through a pull-up resistor. Asserts when any P-port input changes state."+ },+ {+ "number": "2",+ "name": "A1",+ "type": "input",+ "description": "I2C hardware address input 1. Connect directly to VCC or ground; pull-up resistors are not needed. Combined with A0/A2 to give up to eight unique bus addresses."+ },+ {+ "number": "3",+ "name": "A2",+ "type": "input",+ "description": "I2C hardware address input 2. Connect directly to VCC or ground; pull-up resistors are not needed."+ },+ {+ "number": "4",+ "name": "P00",+ "type": "bidirectional",+ "description": "P-port 0, bit 0. Quasi-bidirectional I/O with push-pull design structure; latched outputs with high-current drive for LEDs. IOL up to 25 mA, IOH transient pullup ~-10 mA."+ },+ {+ "number": "5",+ "name": "P01",+ "type": "bidirectional",+ "description": "P-port 0, bit 1. Quasi-bidirectional I/O with push-pull design structure."+ },+ {+ "number": "6",+ "name": "P02",+ "type": "bidirectional",+ "description": "P-port 0, bit 2. Quasi-bidirectional I/O with push-pull design structure."+ },+ {+ "number": "7",+ "name": "P03",+ "type": "bidirectional",+ "description": "P-port 0, bit 3. Quasi-bidirectional I/O with push-pull design structure."+ },+ {+ "number": "8",+ "name": "P04",+ "type": "bidirectional",+ "description": "P-port 0, bit 4. Quasi-bidirectional I/O with push-pull design structure."+ },+ {+ "number": "9",+ "name": "P05",+ "type": "bidirectional",+ "description": "P-port 0, bit 5. Quasi-bidirectional I/O with push-pull design structure."+ },+ {+ "number": "10",+ "name": "P06",+ "type": "bidirectional",+ "description": "P-port 0, bit 6. Quasi-bidirectional I/O with push-pull design structure."+ },+ {+ "number": "11",+ "name": "P07",+ "type": "bidirectional",+ "description": "P-port 0, bit 7. Quasi-bidirectional I/O with push-pull design structure."+ },+ {+ "number": "12",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference for the device."+ },+ {+ "number": "13",+ "name": "P10",+ "type": "bidirectional",+ "description": "P-port 1, bit 0. Quasi-bidirectional I/O with push-pull design structure."+ },+ {+ "number": "14",+ "name": "P11",+ "type": "bidirectional",+ "description": "P-port 1, bit 1. Quasi-bidirectional I/O with push-pull design structure."+ },+ {+ "number": "15",+ "name": "P12",+ "type": "bidirectional",+ "description": "P-port 1, bit 2. Quasi-bidirectional I/O with push-pull design structure."+ },+ {+ "number": "16",+ "name": "P13",+ "type": "bidirectional",+ "description": "P-port 1, bit 3. Quasi-bidirectional I/O with push-pull design structure."+ },+ {+ "number": "17",+ "name": "P14",+ "type": "bidirectional",+ "description": "P-port 1, bit 4. Quasi-bidirectional I/O with push-pull design structure."+ },+ {+ "number": "18",+ "name": "P15",+ "type": "bidirectional",+ "description": "P-port 1, bit 5. Quasi-bidirectional I/O with push-pull design structure."+ },+ {+ "number": "19",+ "name": "P16",+ "type": "bidirectional",+ "description": "P-port 1, bit 6. Quasi-bidirectional I/O with push-pull design structure."+ },+ {+ "number": "20",+ "name": "P17",+ "type": "bidirectional",+ "description": "P-port 1, bit 7. Quasi-bidirectional I/O with push-pull design structure."+ },+ {+ "number": "21",+ "name": "A0",+ "type": "input",+ "description": "I2C hardware address input 0. Connect directly to VCC or ground; pull-up resistors are not needed."+ },+ {+ "number": "22",+ "name": "SCL",+ "type": "input",+ "description": "I2C serial clock line. Connect to VCC through a pull-up resistor. Supports up to 400 kHz (Fast-mode I2C)."+ },+ {+ "number": "23",+ "name": "SDA",+ "type": "bidirectional",+ "description": "I2C serial data line (open-drain). Connect to VCC through a pull-up resistor."+ },+ {+ "number": "24",+ "name": "VCC",+ "type": "power_in",+ "description": "Supply voltage input. Recommended operating range 2.5 V to 5.5 V (absolute max 6.5 V). Bypass with a decoupling capacitor to GND."+ }+ ],+ "provenance": {+ "extractor": "ds2sf",+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/pcf8575.pdf",+ "pages": 44,+ "sha256": "c9a02501bf10ed80",+ "source_tier": "mfr"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 24,+ "described": 24,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "metadata": {+ "specs": {+ "Type": "16-bit I2C I/O expander",+ "I/O": "16, quasi-bidirectional (2 ports)",+ "Interface": "I2C (up to 400 kHz)",+ "Interrupt": "Open-drain, on input change",+ "Addressing": "3 hardware address pins (up to 8)",+ "Supply voltage": "2.5 V to 5.5 V",+ "Operating temperature": "-40 C to 85 C"+ }+ },+ "sections": [+ "hero",+ "viewers",+ "readme",+ "breadcrumbs",+ "info"+ ],+ "discovery_triggers": [+ "I2C GPIO expander",+ "add more I/O",+ "16-bit I/O over I2C",+ "port expander"+ ],+ "discovery_pitch": "Add 16 general-purpose I/O pins to an MCU over I2C, with an interrupt output on any input change.",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }, "dependencies": {}, "hero": { "type": "image",@@ -28,10 +242,5 @@ "docs/pcf8575-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ],- "visibility": "public",- "author": {- "name": "Ray",- "email": "[email protected]"- }+ ] }