component
CD74HC4049NSR
Public Made by Adomby adom
Texas Instruments Buffers, Drivers, Receivers, Transceivers, SO-16. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.
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page.json+95−92@@ -51,99 +51,99 @@ "pins": [ { "number": "1",- "name": "NC",- "type": "unconnected",- "description": "No Connect"+ "name": "VCC",+ "type": "power_in",+ "description": "Positive supply, 2V to 6V operating for HC types (absolute max -0.5V to 7V); also sets the output logic level for level translation." }, { "number": "2",- "name": "6A",- "type": "input",- "description": "Inverting input for stage 6; accepts 0V to 16V input levels"+ "name": "1Y",+ "type": "output",+ "description": "Inverting buffer output 1 (Y = NOT 1A), output voltage 0V to VCC, \u00b125mA max DC output current, standard 10 LSTTL fanout." }, { "number": "3",- "name": "NC",- "type": "unconnected",- "description": "No Connect"+ "name": "1A",+ "type": "input",+ "description": "Input to inverter 1 with modified input protection allowing high-to-low level translation; operating range 0V to 15V (absolute max 16V), independent of VCC." }, { "number": "4",- "name": "5Y",+ "name": "2Y", "type": "output",- "description": "Inverting output for stage 5; provides 0V to VCC logic level output"+ "description": "Inverting buffer output 2 (Y = NOT 2A), output voltage 0V to VCC, \u00b125mA max DC output current." }, { "number": "5",- "name": "5A",+ "name": "2A", "type": "input",- "description": "Inverting input for stage 5; accepts 0V to 16V input levels"+ "description": "Input to inverter 2, level-translating input with an operating range of 0V to 15V (absolute max 16V)." }, { "number": "6",- "name": "4Y",+ "name": "3Y", "type": "output",- "description": "Inverting output for stage 4; provides 0V to VCC logic level output"+ "description": "Inverting buffer output 3 (Y = NOT 3A), output voltage 0V to VCC, \u00b125mA max DC output current." }, { "number": "7",- "name": "4A",+ "name": "3A", "type": "input",- "description": "Inverting input for stage 4; accepts 0V to 16V input levels"+ "description": "Input to inverter 3, level-translating input with an operating range of 0V to 15V (absolute max 16V)." }, { "number": "8",- "name": "6Y",- "type": "output",- "description": "Inverting output for stage 6; provides 0V to VCC logic level output"+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference; \u00b150mA max DC ground current." }, { "number": "9",- "name": "3A",+ "name": "4A", "type": "input",- "description": "Inverting input for stage 3; accepts 0V to 16V input levels"+ "description": "Input to inverter 4, level-translating input with an operating range of 0V to 15V (absolute max 16V)." }, { "number": "10",- "name": "GND",- "type": "power_in",- "description": "Ground reference for device"+ "name": "4Y",+ "type": "output",+ "description": "Inverting buffer output 4 (Y = NOT 4A), output voltage 0V to VCC, \u00b125mA max DC output current." }, { "number": "11",- "name": "3Y",- "type": "output",- "description": "Inverting output for stage 3; provides 0V to VCC logic level output"+ "name": "5A",+ "type": "input",+ "description": "Input to inverter 5, level-translating input with an operating range of 0V to 15V (absolute max 16V)." }, { "number": "12",- "name": "2A",- "type": "input",- "description": "Inverting input for stage 2; accepts 0V to 16V input levels"+ "name": "5Y",+ "type": "output",+ "description": "Inverting buffer output 5 (Y = NOT 5A), output voltage 0V to VCC, \u00b125mA max DC output current." }, { "number": "13",- "name": "2Y",- "type": "output",- "description": "Inverting output for stage 2; provides 0V to VCC logic level output"+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection." }, { "number": "14",- "name": "1A",+ "name": "6A", "type": "input",- "description": "Inverting input for stage 1; accepts 0V to 16V input levels"+ "description": "Input to inverter 6, level-translating input with an operating range of 0V to 15V (absolute max 16V)." }, { "number": "15",- "name": "1Y",+ "name": "6Y", "type": "output",- "description": "Inverting output for stage 1; provides 0V to VCC logic level output"+ "description": "Inverting buffer output 6 (Y = NOT 6A), output voltage 0V to VCC, \u00b125mA max DC output current." }, { "number": "16",- "name": "VCC",- "type": "power_in",- "description": "Positive power supply; 2V to 6V for HC types"+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection." } ], "provenance": {@@ -160,6 +160,12 @@ "described": 16, "cites_pages": true, "refuses_to_fabricate": true+ },+ "correction": {+ "at": "2026-10-22",+ "what": "16 of 16 pins corrected",+ "how": "pinout replaced from review decision: Opus 5.5 + Sonnet 5.5 agree on the whole pinout (two independent whole-datasheet reads) (both 5.5 models agree on all 16 pins; the original pair (opus matches neither side) is overruled); the previous pinout came from an earlier extraction",+ "symbol": "regenerated from the corrected pinout" } }, "viewers": {@@ -175,12 +181,12 @@ "origin": "footprint origin = pad-pattern centre", "seat": "z = 0", "extents_mm": [- 6,+ 6.0, 9.9, 1.75 ],- "zmin_mm": 0,- "centre_offset_mm": 0,+ "zmin_mm": -0.0,+ "centre_offset_mm": 0.0, "footprint_binding": "identity", "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf", "checked": "2026-10-22",@@ -194,12 +200,12 @@ "origin": "footprint origin = pad-pattern centre", "seat": "z = 0", "extents_mm": [- 6,+ 6.0, 9.9, 1.75 ],- "zmin_mm": 0,- "centre_offset_mm": 0,+ "zmin_mm": -0.0,+ "centre_offset_mm": 0.0, "footprint_binding": "identity", "sha256": "362e9e188c3cf789cebace126c0d22abf629b45368764927ec598fcea1a6c488", "checked": "2026-10-22",@@ -295,7 +301,7 @@ "name": "Maximum Junction Temperature (Plastic Package)", "symbol": "TJ", "kind": "absolute_maximum",- "unit": "°C",+ "unit": "\u00b0C", "min": null, "typ": null, "max": 150,@@ -307,7 +313,7 @@ "name": "Storage Temperature Range", "symbol": "Tstg", "kind": "absolute_maximum",- "unit": "°C",+ "unit": "\u00b0C", "min": -65, "typ": null, "max": 150,@@ -319,7 +325,7 @@ "name": "Maximum Lead Temperature", "symbol": "", "kind": "absolute_maximum",- "unit": "°C",+ "unit": "\u00b0C", "min": null, "typ": null, "max": 300,@@ -331,7 +337,7 @@ "name": "Operating Temperature Range", "symbol": "TA", "kind": "recommended_operating",- "unit": "°C",+ "unit": "\u00b0C", "min": -55, "typ": null, "max": 125,@@ -413,9 +419,9 @@ }, { "name": "Package Thermal Impedance",- "symbol": "θJA",+ "symbol": "\u03b8JA", "kind": "thermal",- "unit": "°C/W",+ "unit": "\u00b0C/W", "min": null, "typ": 64, "max": null,@@ -431,7 +437,7 @@ "min": 1.5, "typ": null, "max": null,- "conditions": "VCC = 2V, 25°C",+ "conditions": "VCC = 2V, 25\u00b0C", "source_page": 3, "source": "datasheet" },@@ -443,7 +449,7 @@ "min": 3.15, "typ": null, "max": null,- "conditions": "VCC = 4.5V, 25°C",+ "conditions": "VCC = 4.5V, 25\u00b0C", "source_page": 3, "source": "datasheet" },@@ -455,7 +461,7 @@ "min": 4.2, "typ": null, "max": null,- "conditions": "VCC = 6V, 25°C",+ "conditions": "VCC = 6V, 25\u00b0C", "source_page": 3, "source": "datasheet" },@@ -467,7 +473,7 @@ "min": null, "typ": null, "max": 0.5,- "conditions": "VCC = 2V, 25°C",+ "conditions": "VCC = 2V, 25\u00b0C", "source_page": 3, "source": "datasheet" },@@ -479,7 +485,7 @@ "min": null, "typ": null, "max": 1.35,- "conditions": "VCC = 4.5V, 25°C",+ "conditions": "VCC = 4.5V, 25\u00b0C", "source_page": 3, "source": "datasheet" },@@ -491,7 +497,7 @@ "min": null, "typ": null, "max": 1.8,- "conditions": "VCC = 6V, 25°C",+ "conditions": "VCC = 6V, 25\u00b0C", "source_page": 3, "source": "datasheet" },@@ -503,7 +509,7 @@ "min": 1.9, "typ": null, "max": null,- "conditions": "VI = VIH or VIL, IO = -0.02mA, VCC = 2V, 25°C",+ "conditions": "VI = VIH or VIL, IO = -0.02mA, VCC = 2V, 25\u00b0C", "source_page": 3, "source": "datasheet" },@@ -515,7 +521,7 @@ "min": 4.4, "typ": null, "max": null,- "conditions": "VI = VIH or VIL, IO = -0.02mA, VCC = 4.5V, 25°C",+ "conditions": "VI = VIH or VIL, IO = -0.02mA, VCC = 4.5V, 25\u00b0C", "source_page": 3, "source": "datasheet" },@@ -527,7 +533,7 @@ "min": 5.9, "typ": null, "max": null,- "conditions": "VI = VIH or VIL, IO = -0.02mA, VCC = 6V, 25°C",+ "conditions": "VI = VIH or VIL, IO = -0.02mA, VCC = 6V, 25\u00b0C", "source_page": 3, "source": "datasheet" },@@ -539,7 +545,7 @@ "min": 3.98, "typ": null, "max": null,- "conditions": "IO = -4mA, VCC = 4.5V, 25°C",+ "conditions": "IO = -4mA, VCC = 4.5V, 25\u00b0C", "source_page": 3, "source": "datasheet" },@@ -551,7 +557,7 @@ "min": 3.7, "typ": null, "max": null,- "conditions": "IO = -4mA, VCC = 4.5V, -55°C to 125°C",+ "conditions": "IO = -4mA, VCC = 4.5V, -55\u00b0C to 125\u00b0C", "source_page": 3, "source": "datasheet" },@@ -563,7 +569,7 @@ "min": 5.48, "typ": null, "max": null,- "conditions": "IO = -5.2mA, VCC = 6V, 25°C",+ "conditions": "IO = -5.2mA, VCC = 6V, 25\u00b0C", "source_page": 3, "source": "datasheet" },@@ -575,7 +581,7 @@ "min": 5.2, "typ": null, "max": null,- "conditions": "IO = -5.2mA, VCC = 6V, -55°C to 125°C",+ "conditions": "IO = -5.2mA, VCC = 6V, -55\u00b0C to 125\u00b0C", "source_page": 3, "source": "datasheet" },@@ -587,7 +593,7 @@ "min": null, "typ": null, "max": 0.1,- "conditions": "VI = VIH or VIL, IO = 0.02mA, VCC = 2V, 4.5V, 6V, 25°C",+ "conditions": "VI = VIH or VIL, IO = 0.02mA, VCC = 2V, 4.5V, 6V, 25\u00b0C", "source_page": 3, "source": "datasheet" },@@ -599,7 +605,7 @@ "min": null, "typ": null, "max": 0.26,- "conditions": "IO = 4mA, VCC = 4.5V, 25°C",+ "conditions": "IO = 4mA, VCC = 4.5V, 25\u00b0C", "source_page": 3, "source": "datasheet" },@@ -611,7 +617,7 @@ "min": null, "typ": null, "max": 0.4,- "conditions": "IO = 4mA, VCC = 4.5V, -55°C to 125°C",+ "conditions": "IO = 4mA, VCC = 4.5V, -55\u00b0C to 125\u00b0C", "source_page": 3, "source": "datasheet" },@@ -619,11 +625,11 @@ "name": "Input Leakage Current", "symbol": "II", "kind": "electrical",- "unit": "µA",+ "unit": "\u00b5A", "min": -0.1, "typ": null, "max": 0.1,- "conditions": "VI = VCC or GND, VCC = 6V, 25°C",+ "conditions": "VI = VCC or GND, VCC = 6V, 25\u00b0C", "source_page": 3, "source": "datasheet" },@@ -631,11 +637,11 @@ "name": "Input Leakage Current", "symbol": "II", "kind": "electrical",- "unit": "µA",+ "unit": "\u00b5A", "min": -5, "typ": null, "max": 5,- "conditions": "VI = 15V, VCC = 6V, -55°C to 125°C",+ "conditions": "VI = 15V, VCC = 6V, -55\u00b0C to 125\u00b0C", "source_page": 3, "source": "datasheet" },@@ -643,11 +649,11 @@ "name": "Input Leakage Current", "symbol": "II", "kind": "electrical",- "unit": "µA",+ "unit": "\u00b5A", "min": -0.5, "typ": null, "max": 0.5,- "conditions": "VI = 15V, VCC = 6V, 25°C",+ "conditions": "VI = 15V, VCC = 6V, 25\u00b0C", "source_page": 3, "source": "datasheet" },@@ -655,11 +661,11 @@ "name": "Quiescent Device Current", "symbol": "ICC", "kind": "electrical",- "unit": "µA",+ "unit": "\u00b5A", "min": null, "typ": null, "max": 2,- "conditions": "VI = VCC or GND, IO = 0, VCC = 6V, 25°C",+ "conditions": "VI = VCC or GND, IO = 0, VCC = 6V, 25\u00b0C", "source_page": 4, "source": "datasheet" },@@ -667,11 +673,11 @@ "name": "Quiescent Device Current", "symbol": "ICC", "kind": "electrical",- "unit": "µA",+ "unit": "\u00b5A", "min": null, "typ": null, "max": 40,- "conditions": "VI = VCC or GND, IO = 0, VCC = 6V, -55°C to 125°C",+ "conditions": "VI = VCC or GND, IO = 0, VCC = 6V, -55\u00b0C to 125\u00b0C", "source_page": 4, "source": "datasheet" },@@ -683,7 +689,7 @@ "min": null, "typ": null, "max": 85,- "conditions": "CL = 50pF, VCC = 2V, 25°C",+ "conditions": "CL = 50pF, VCC = 2V, 25\u00b0C", "source_page": 4, "source": "datasheet" },@@ -695,7 +701,7 @@ "min": null, "typ": null, "max": 17,- "conditions": "CL = 50pF, VCC = 4.5V, 25°C",+ "conditions": "CL = 50pF, VCC = 4.5V, 25\u00b0C", "source_page": 4, "source": "datasheet" },@@ -707,7 +713,7 @@ "min": null, "typ": null, "max": 14,- "conditions": "CL = 50pF, VCC = 6V, 25°C",+ "conditions": "CL = 50pF, VCC = 6V, 25\u00b0C", "source_page": 4, "source": "datasheet" },@@ -719,7 +725,7 @@ "min": null, "typ": null, "max": 130,- "conditions": "CL = 50pF, VCC = 2V, -55°C to 125°C",+ "conditions": "CL = 50pF, VCC = 2V, -55\u00b0C to 125\u00b0C", "source_page": 4, "source": "datasheet" },@@ -731,7 +737,7 @@ "min": null, "typ": null, "max": 75,- "conditions": "CL = 50pF, VCC = 2V, 25°C",+ "conditions": "CL = 50pF, VCC = 2V, 25\u00b0C", "source_page": 4, "source": "datasheet" },@@ -743,7 +749,7 @@ "min": null, "typ": null, "max": 15,- "conditions": "CL = 50pF, VCC = 4.5V, 25°C",+ "conditions": "CL = 50pF, VCC = 4.5V, 25\u00b0C", "source_page": 4, "source": "datasheet" },@@ -755,7 +761,7 @@ "min": null, "typ": null, "max": 13,- "conditions": "CL = 50pF, VCC = 6V, 25°C",+ "conditions": "CL = 50pF, VCC = 6V, 25\u00b0C", "source_page": 4, "source": "datasheet" },@@ -779,7 +785,7 @@ "min": null, "typ": 6, "max": null,- "conditions": "CL = 15pF, VCC = 5V, 25°C",+ "conditions": "CL = 15pF, VCC = 5V, 25\u00b0C", "source_page": 4, "source": "datasheet" },@@ -834,8 +840,5 @@ "cd74hc4049nsr-hero.glb", "cd74hc4049nsr-hero.overlay.json", "cd74hc4049nsr-etched.glb"- ],- "visibility": "public",- "description": "Texas Instruments Buffers, Drivers, Receivers, Transceivers, SO-16. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.",- "org": "adom"-}+ ]+}