component
SN74HC157
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TI quad 2-to-1 data selector/multiplexer, SOIC-16. One select routes one of two 4-bit inputs, enable. HC 2-6 V. Datasheet-verified.
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page.json+170−8@@ -1,8 +1,11 @@ {+ "schema_version": 1,+ "type": "component", "slug": "sn74hc157",+ "title": "SN74HC157",+ "brief": "TI quad 2-to-1 data selector/multiplexer, SOIC-16. One select routes one of two 4-bit inputs, enable. HC 2-6 V. Datasheet-verified.", "version": "0.1.0",- "type": "component",- "description": "TI quad 2-to-1 data selector/multiplexer, SOIC-16. One select routes one of two 4-bit inputs, enable. HC 2-6 V. Datasheet-verified.",+ "license": "CC-BY-SA-4.0", "tags": [ "component", "multiplexer",@@ -11,6 +14,170 @@ "soic-16", "texas-instruments" ],+ "component": {+ "mpn": "SN74HC157",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-16",+ "pin_count": 16,+ "category": "Multiplexer",+ "subcategory": "Quad 2-to-1 multiplexer",+ "datasheet": "https://www.ti.com/lit/ds/symlink/sn74hc157.pdf",+ "parts": {+ "symbol": "sn74hc157.kicad_sym",+ "footprint": "sn74hc157.kicad_mod",+ "model_3d": "sn74hc157.glb"+ },+ "distributor_links": {},+ "pins": [+ {+ "number": "1",+ "name": "A/B",+ "type": "input",+ "description": "Address select input (A/B, active-low means low selects A, high selects B). Standard CMOS input; when G is low, Y follows selected A or B input for all four channels."+ },+ {+ "number": "2",+ "name": "1A",+ "type": "input",+ "description": "Channel 1 data input A. Routed to 1Y when A/B is low and G is low."+ },+ {+ "number": "3",+ "name": "1B",+ "type": "input",+ "description": "Channel 1 data input B. Routed to 1Y when A/B is high and G is low."+ },+ {+ "number": "4",+ "name": "1Y",+ "type": "output",+ "description": "Channel 1 data output. Drives the selected A or B input; forced low when G is high. \u00b16mA drive at 5V."+ },+ {+ "number": "5",+ "name": "2A",+ "type": "input",+ "description": "Channel 2 data input A. Routed to 2Y when A/B is low and G is low."+ },+ {+ "number": "6",+ "name": "2B",+ "type": "input",+ "description": "Channel 2 data input B. Routed to 2Y when A/B is high and G is low."+ },+ {+ "number": "7",+ "name": "2Y",+ "type": "output",+ "description": "Channel 2 data output. Drives the selected A or B input; forced low when G is high."+ },+ {+ "number": "8",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference, 0V. Continuous current through VCC or GND is limited to \u00b170mA (absolute max)."+ },+ {+ "number": "9",+ "name": "3Y",+ "type": "output",+ "description": "Channel 3 data output. Drives the selected A or B input; forced low when G is high."+ },+ {+ "number": "10",+ "name": "3B",+ "type": "input",+ "description": "Channel 3 data input B. Routed to 3Y when A/B is high and G is low."+ },+ {+ "number": "11",+ "name": "3A",+ "type": "input",+ "description": "Channel 3 data input A. Routed to 3Y when A/B is low and G is low."+ },+ {+ "number": "12",+ "name": "4Y",+ "type": "output",+ "description": "Channel 4 data output. Drives the selected A or B input; forced low when G is high."+ },+ {+ "number": "13",+ "name": "4B",+ "type": "input",+ "description": "Channel 4 data input B. Routed to 4Y when A/B is high and G is low."+ },+ {+ "number": "14",+ "name": "4A",+ "type": "input",+ "description": "Channel 4 data input A. Routed to 4Y when A/B is low and G is low."+ },+ {+ "number": "15",+ "name": "G",+ "type": "input",+ "description": "Output strobe, active low. When G is high, all four Y outputs are forced low regardless of A/B or data inputs; when G is low the mux operates normally."+ },+ {+ "number": "16",+ "name": "VCC",+ "type": "power_in",+ "description": "Positive supply, 2V to 6V recommended (5V nominal). Absolute max 7V. Decouple with 0.1uF close to the pin."+ }+ ],+ "provenance": {+ "extractor": "ds2sf",+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/sn74hc157.pdf",+ "pages": 37,+ "sha256": "4dcd9386eac88c0e",+ "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": "Quad 2-to-1 multiplexer",+ "Channels": "4 bits (2:1 each)",+ "Select": "one shared A/B line",+ "Enable": "active-low (forces Y low)",+ "Outputs": "true (non-inverting)",+ "Logic family": "HC (high-speed CMOS)",+ "Supply voltage": "2-6 V",+ "Package": "SOIC-16"+ }+ },+ "sections": [+ "hero",+ "viewers",+ "readme",+ "breadcrumbs",+ "info"+ ],+ "discovery_triggers": [+ "sn74hc157",+ "74hc157",+ "quad 2 to 1 mux",+ "data selector",+ "4-bit multiplexer"+ ],+ "discovery_pitch": "SN74HC157 quad 2-to-1 multiplexer (SOIC-16) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }, "dependencies": {}, "hero": { "type": "image",@@ -26,10 +193,5 @@ "docs/sn74hc157-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ],- "visibility": "public",- "author": {- "name": "Ray",- "email": "[email protected]"- }+ ] }