component
PCA9538
Public Made by Adomby adom
TI 8-bit I2C I/O expander with interrupt and reset, VQFN-16. Eight I/O, INT + RESET, 1.65-5.5 V. Datasheet-verified.
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pca9538: datasheet-first component page (KiCad sym+mod+step+lbr, hero, viewers)
1 file changed
+171−8
page.json+171−8@@ -1,8 +1,11 @@ {+ "schema_version": 1,+ "type": "component", "slug": "pca9538",+ "title": "PCA9538",+ "brief": "TI 8-bit I2C I/O expander with interrupt and reset, VQFN-16. Eight I/O, INT + RESET, 1.65-5.5 V. Datasheet-verified.", "version": "0.1.0",- "type": "component",- "description": "TI 8-bit I2C I/O expander with interrupt and reset, VQFN-16. Eight I/O, INT + RESET, 1.65-5.5 V. Datasheet-verified.",+ "license": "CC-BY-SA-4.0", "tags": [ "component", "interface",@@ -12,6 +15,171 @@ "vqfn-16", "texas-instruments" ],+ "component": {+ "mpn": "PCA9538",+ "manufacturer": "Texas Instruments",+ "package": "VQFN-16",+ "pin_count": 16,+ "category": "Interface",+ "subcategory": "I2C I/O expander",+ "datasheet": "https://www.ti.com/lit/ds/symlink/pca9538.pdf",+ "parts": {+ "symbol": "pca9538.kicad_sym",+ "footprint": "pca9538.kicad_mod",+ "model_3d": "pca9538.glb",+ "model_3d_step": "pca9538.step",+ "lbr": "pca9538.lbr"+ },+ "distributor_links": {},+ "pins": [+ {+ "number": "1",+ "name": "RESET",+ "type": "input",+ "description": "Active-low reset input. Connect to VCC through a pull-up resistor if no active connection is used. Asserting resets the device to its default (power-on) state."+ },+ {+ "number": "2",+ "name": "IO0",+ "type": "bidirectional",+ "description": "P-port I/O bit 0. Push-pull design structure. IOH = -10 mA, IOL = 25 mA (recommended). Powers up as input."+ },+ {+ "number": "3",+ "name": "IO1",+ "type": "bidirectional",+ "description": "P-port I/O bit 1. Push-pull design structure. IOH = -10 mA, IOL = 25 mA (recommended). Powers up as input."+ },+ {+ "number": "4",+ "name": "IO2",+ "type": "bidirectional",+ "description": "P-port I/O bit 2. Push-pull design structure. IOH = -10 mA, IOL = 25 mA (recommended). Powers up as input."+ },+ {+ "number": "5",+ "name": "IO3",+ "type": "bidirectional",+ "description": "P-port I/O bit 3. Push-pull design structure. IOH = -10 mA, IOL = 25 mA (recommended). Powers up as input."+ },+ {+ "number": "6",+ "name": "VSS",+ "type": "power_in",+ "description": "Ground reference for supply and all I/O signals."+ },+ {+ "number": "7",+ "name": "IO4",+ "type": "bidirectional",+ "description": "P-port I/O bit 4. Push-pull design structure. IOH = -10 mA, IOL = 25 mA (recommended). Powers up as input."+ },+ {+ "number": "8",+ "name": "IO5",+ "type": "bidirectional",+ "description": "P-port I/O bit 5. Push-pull design structure. IOH = -10 mA, IOL = 25 mA (recommended). Powers up as input."+ },+ {+ "number": "9",+ "name": "IO6",+ "type": "bidirectional",+ "description": "P-port I/O bit 6. Push-pull design structure. IOH = -10 mA, IOL = 25 mA (recommended). Powers up as input."+ },+ {+ "number": "10",+ "name": "IO7",+ "type": "bidirectional",+ "description": "P-port I/O bit 7. Push-pull design structure. IOH = -10 mA, IOL = 25 mA (recommended). Powers up as input."+ },+ {+ "number": "11",+ "name": "INT",+ "type": "output",+ "description": "Open-drain active-low interrupt output. Asserts when an input P-port changes state. Connect to VCC through a pull-up resistor. IOL(typ) = 7 mA at VOL = 0.4 V."+ },+ {+ "number": "12",+ "name": "SCL",+ "type": "input",+ "description": "I2C serial clock input. Connect to VCC through a pull-up resistor. Supports 100-kHz Standard-mode and 400-kHz Fast-mode."+ },+ {+ "number": "13",+ "name": "SDA",+ "type": "bidirectional",+ "description": "I2C serial data bus (open-drain). Connect to VCC through a pull-up resistor. IOL(typ) = 3 mA at VOL = 0.4 V."+ },+ {+ "number": "14",+ "name": "VDD",+ "type": "power_in",+ "description": "Supply voltage input, 2.3 V to 5.5 V. Bypass to GND with a local decoupling capacitor."+ },+ {+ "number": "15",+ "name": "A0",+ "type": "input",+ "description": "I2C hardware address input bit 0. Connect directly to VCC or GND to select one of four slave addresses. VIH >= 0.7 x VCC; VIL <= 0.3 x VCC."+ },+ {+ "number": "16",+ "name": "A1",+ "type": "input",+ "description": "I2C hardware address input bit 1. Connect directly to VCC or GND to select one of four slave addresses. VIH >= 0.7 x VCC; VIL <= 0.3 x VCC."+ }+ ],+ "provenance": {+ "extractor": "ds2sf",+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/pca9538.pdf",+ "pages": 44,+ "sha256": "7bbc8724cd47ce44",+ "source_tier": "mfr"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 16,+ "described": 16,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "metadata": {+ "specs": {+ "Type": "8-bit I2C I/O expander",+ "Interface": "I2C (up to 400 kHz)",+ "I/O": "8 pins (IO0-IO7)",+ "Interrupt": "INT output (interrupt-on-change)",+ "Reset": "Hardware RESET input",+ "Addresses": "4 (A0-A1)",+ "Supply": "1.65-5.5 V",+ "Package": "VQFN-16"+ }+ },+ "sections": [+ "hero",+ "viewers",+ "readme",+ "breadcrumbs",+ "info"+ ],+ "discovery_triggers": [+ "pca9538",+ "8-bit io expander",+ "i2c gpio with reset",+ "add gpio over i2c"+ ],+ "discovery_pitch": "TI PCA9538 8-bit I2C I/O expander with interrupt and reset (VQFN-16) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }, "dependencies": {}, "hero": { "type": "image",@@ -29,10 +197,5 @@ "docs/pca9538-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ],- "visibility": "public",- "author": {- "name": "Ray",- "email": "[email protected]"- }+ ] }