component
MC74HC4538ADR2G
Public Made by Adomby adom
onsemi Monostable Multivibrators, SOIC-16. Pinout settled in review by an AI reviewer against the manufacturer's datasheet, KiCad symbol/footprint/3D.
← Commit history
page.json+63−57@@ -86,7 +86,7 @@ }, { "number": "7",- "name": "NQ1",+ "name": "~{Q1}", "type": "output", "description": "Inverted monostable output 1, normally high, pulsing low when multivibrator 1 is triggered." },@@ -98,7 +98,7 @@ }, { "number": "9",- "name": "NQ2",+ "name": "~{Q2}", "type": "output", "description": "Inverted monostable output 2, normally high, pulsing low when multivibrator 2 is triggered." },@@ -159,6 +159,12 @@ "described": 16, "cites_pages": true, "refuses_to_fabricate": true+ },+ "correction": {+ "at": "2026-11-06",+ "what": "2 of 16 pins corrected",+ "how": "pinout replaced from review decision: ray (review) (); the previous pinout came from an earlier extraction",+ "symbol": "regenerated from the corrected pinout" } }, "viewers": {@@ -286,7 +292,7 @@ "min": -0.5, "typ": null, "max": null,- "conditions": "Printed as −0.5 ≤ VI ≤ VCC + 0.5",+ "conditions": "Printed as \u22120.5 \u2264 VI \u2264 VCC + 0.5", "source_page": 3, "source": "datasheet" },@@ -298,7 +304,7 @@ "min": -0.5, "typ": null, "max": null,- "conditions": "Printed as −0.5 ≤ VO ≤ VCC + 0.5",+ "conditions": "Printed as \u22120.5 \u2264 VO \u2264 VCC + 0.5", "source_page": 3, "source": "datasheet" },@@ -378,7 +384,7 @@ "name": "Storage Temperature Range", "symbol": "TSTG", "kind": "absolute_maximum",- "unit": "°C",+ "unit": "\u00b0C", "min": -65, "typ": null, "max": 150,@@ -390,7 +396,7 @@ "name": "Lead temperature", "symbol": "TL", "kind": "absolute_maximum",- "unit": "°C",+ "unit": "\u00b0C", "min": null, "typ": null, "max": 260,@@ -402,7 +408,7 @@ "name": "Junction temperature under bias", "symbol": "TJ", "kind": "absolute_maximum",- "unit": "°C",+ "unit": "\u00b0C", "min": null, "typ": null, "max": 150,@@ -454,15 +460,15 @@ "min": -300, "typ": null, "max": 300,- "conditions": "Above VCC and below GND at 85 °C (EIA/JESD78)",+ "conditions": "Above VCC and below GND at 85 \u00b0C (EIA/JESD78)", "source_page": 3, "source": "datasheet" }, { "name": "Thermal resistance, junction-to-ambient",- "symbol": "θJA",+ "symbol": "\u03b8JA", "kind": "thermal",- "unit": "°C/W",+ "unit": "\u00b0C/W", "min": null, "typ": null, "max": 112,@@ -471,14 +477,14 @@ "source": "datasheet" }, {- "name": "Power Dissipation in Still Air at 85 °C",+ "name": "Power Dissipation in Still Air at 85 \u00b0C", "symbol": "PD", "kind": "absolute_maximum", "unit": "mW", "min": null, "typ": null, "max": 500,- "conditions": "SOIC; still air at 85 °C",+ "conditions": "SOIC; still air at 85 \u00b0C", "source_page": 3, "source": "datasheet" },@@ -510,7 +516,7 @@ "name": "Operating Temperature, All Package Types", "symbol": "TA", "kind": "recommended_operating",- "unit": "°C",+ "unit": "\u00b0C", "min": -55, "typ": null, "max": 125,@@ -558,11 +564,11 @@ "name": "External Timing Resistor Rx", "symbol": "Rx", "kind": "recommended_operating",- "unit": "kΩ",+ "unit": "k\u03a9", "min": 1, "typ": null, "max": null,- "conditions": "VCC < 4.5 V; maximum given by footnote †",+ "conditions": "VCC < 4.5 V; maximum given by footnote \u2020", "source_page": 3, "source": "datasheet" },@@ -570,11 +576,11 @@ "name": "External Timing Resistor Rx", "symbol": "Rx", "kind": "recommended_operating",- "unit": "kΩ",+ "unit": "k\u03a9", "min": 2, "typ": null, "max": null,- "conditions": "VCC ≥ 4.5 V; maximum given by footnote †",+ "conditions": "VCC \u2265 4.5 V; maximum given by footnote \u2020", "source_page": 3, "source": "datasheet" },@@ -582,11 +588,11 @@ "name": "External Timing Capacitor Cx", "symbol": "Cx", "kind": "recommended_operating",- "unit": "µF",+ "unit": "\u00b5F", "min": 0, "typ": null, "max": null,- "conditions": "Maximum given by footnote †",+ "conditions": "Maximum given by footnote \u2020", "source_page": 3, "source": "datasheet" },@@ -598,7 +604,7 @@ "min": 1.5, "typ": null, "max": null,- "conditions": "VCC = 2.0 V; Vout = 0.1 V or VCC − 0.1 V; |Iout| ≤ 20 µA",+ "conditions": "VCC = 2.0 V; Vout = 0.1 V or VCC \u2212 0.1 V; |Iout| \u2264 20 \u00b5A", "source_page": 4, "source": "datasheet" },@@ -610,7 +616,7 @@ "min": 3.15, "typ": null, "max": null,- "conditions": "VCC = 4.5 V; Vout = 0.1 V or VCC − 0.1 V; |Iout| ≤ 20 µA",+ "conditions": "VCC = 4.5 V; Vout = 0.1 V or VCC \u2212 0.1 V; |Iout| \u2264 20 \u00b5A", "source_page": 4, "source": "datasheet" },@@ -622,7 +628,7 @@ "min": 4.2, "typ": null, "max": null,- "conditions": "VCC = 6.0 V; Vout = 0.1 V or VCC − 0.1 V; |Iout| ≤ 20 µA",+ "conditions": "VCC = 6.0 V; Vout = 0.1 V or VCC \u2212 0.1 V; |Iout| \u2264 20 \u00b5A", "source_page": 4, "source": "datasheet" },@@ -634,7 +640,7 @@ "min": null, "typ": null, "max": 0.5,- "conditions": "VCC = 2.0 V; Vout = 0.1 V or VCC − 0.1 V; |Iout| ≤ 20 µA",+ "conditions": "VCC = 2.0 V; Vout = 0.1 V or VCC \u2212 0.1 V; |Iout| \u2264 20 \u00b5A", "source_page": 4, "source": "datasheet" },@@ -646,7 +652,7 @@ "min": null, "typ": null, "max": 1.35,- "conditions": "VCC = 4.5 V; Vout = 0.1 V or VCC − 0.1 V; |Iout| ≤ 20 µA",+ "conditions": "VCC = 4.5 V; Vout = 0.1 V or VCC \u2212 0.1 V; |Iout| \u2264 20 \u00b5A", "source_page": 4, "source": "datasheet" },@@ -658,7 +664,7 @@ "min": null, "typ": null, "max": 1.8,- "conditions": "VCC = 6.0 V; Vout = 0.1 V or VCC − 0.1 V; |Iout| ≤ 20 µA",+ "conditions": "VCC = 6.0 V; Vout = 0.1 V or VCC \u2212 0.1 V; |Iout| \u2264 20 \u00b5A", "source_page": 4, "source": "datasheet" },@@ -670,7 +676,7 @@ "min": 1.9, "typ": null, "max": null,- "conditions": "VCC = 2.0 V; Vin = VIH or VIL; |Iout| ≤ 20 µA",+ "conditions": "VCC = 2.0 V; Vin = VIH or VIL; |Iout| \u2264 20 \u00b5A", "source_page": 4, "source": "datasheet" },@@ -682,7 +688,7 @@ "min": 4.4, "typ": null, "max": null,- "conditions": "VCC = 4.5 V; Vin = VIH or VIL; |Iout| ≤ 20 µA",+ "conditions": "VCC = 4.5 V; Vin = VIH or VIL; |Iout| \u2264 20 \u00b5A", "source_page": 4, "source": "datasheet" },@@ -694,7 +700,7 @@ "min": 5.9, "typ": null, "max": null,- "conditions": "VCC = 6.0 V; Vin = VIH or VIL; |Iout| ≤ 20 µA",+ "conditions": "VCC = 6.0 V; Vin = VIH or VIL; |Iout| \u2264 20 \u00b5A", "source_page": 4, "source": "datasheet" },@@ -706,7 +712,7 @@ "min": 3.7, "typ": null, "max": null,- "conditions": "VCC = 4.5 V; Vin = VIH or VIL; |Iout| ≤ −4.0 mA; −55 to 125 °C",+ "conditions": "VCC = 4.5 V; Vin = VIH or VIL; |Iout| \u2264 \u22124.0 mA; \u221255 to 125 \u00b0C", "source_page": 4, "source": "datasheet" },@@ -718,7 +724,7 @@ "min": 5.2, "typ": null, "max": null,- "conditions": "VCC = 6.0 V; Vin = VIH or VIL; |Iout| ≤ −5.2 mA; −55 to 125 °C",+ "conditions": "VCC = 6.0 V; Vin = VIH or VIL; |Iout| \u2264 \u22125.2 mA; \u221255 to 125 \u00b0C", "source_page": 4, "source": "datasheet" },@@ -730,7 +736,7 @@ "min": null, "typ": null, "max": 0.1,- "conditions": "VCC = 2.0 V; Vin = VIH or VIL; |Iout| ≤ 20 µA",+ "conditions": "VCC = 2.0 V; Vin = VIH or VIL; |Iout| \u2264 20 \u00b5A", "source_page": 4, "source": "datasheet" },@@ -742,7 +748,7 @@ "min": null, "typ": null, "max": 0.4,- "conditions": "VCC = 4.5 V; Vin = VIH or VIL; |Iout| ≤ 4.0 mA; −55 to 125 °C",+ "conditions": "VCC = 4.5 V; Vin = VIH or VIL; |Iout| \u2264 4.0 mA; \u221255 to 125 \u00b0C", "source_page": 4, "source": "datasheet" },@@ -750,11 +756,11 @@ "name": "Maximum Input Leakage Current (A, B, Reset)", "symbol": "Iin", "kind": "electrical",- "unit": "µA",+ "unit": "\u00b5A", "min": -1, "typ": null, "max": 1,- "conditions": "Vin = VCC or GND; VCC = 6.0 V; −55 to 125 °C",+ "conditions": "Vin = VCC or GND; VCC = 6.0 V; \u221255 to 125 \u00b0C", "source_page": 4, "source": "datasheet" },@@ -766,7 +772,7 @@ "min": -500, "typ": null, "max": 500,- "conditions": "Vin = VCC or GND; VCC = 6.0 V; −55 to 125 °C",+ "conditions": "Vin = VCC or GND; VCC = 6.0 V; \u221255 to 125 \u00b0C", "source_page": 4, "source": "datasheet" },@@ -774,11 +780,11 @@ "name": "Maximum Quiescent Supply Current (per package), Standby State", "symbol": "ICC", "kind": "electrical",- "unit": "µA",+ "unit": "\u00b5A", "min": null, "typ": null, "max": 350,- "conditions": "Vin = VCC or GND; Q1 and Q2 = Low; Iout = 0; VCC = 6.0 V; −55 to 125 °C",+ "conditions": "Vin = VCC or GND; Q1 and Q2 = Low; Iout = 0; VCC = 6.0 V; \u221255 to 125 \u00b0C", "source_page": 4, "source": "datasheet" },@@ -786,11 +792,11 @@ "name": "Maximum Supply Current (per package), Active State", "symbol": "ICC", "kind": "electrical",- "unit": "µA",+ "unit": "\u00b5A", "min": null, "typ": null, "max": 800,- "conditions": "Vin = VCC or GND; Q1 and Q2 = High; Iout = 0; Pins 2 and 14 = 0.5 VCC; VCC = 6.0 V; −55 to 125 °C",+ "conditions": "Vin = VCC or GND; Q1 and Q2 = High; Iout = 0; Pins 2 and 14 = 0.5 VCC; VCC = 6.0 V; \u221255 to 125 \u00b0C", "source_page": 4, "source": "datasheet" },@@ -802,7 +808,7 @@ "min": null, "typ": 10, "max": 25,- "conditions": "−55 to 125 °C",+ "conditions": "\u221255 to 125 \u00b0C", "source_page": 5, "source": "datasheet" },@@ -814,7 +820,7 @@ "min": null, "typ": null, "max": 265,- "conditions": "VCC = 2.0 V; CL = 50 pF; tr = tf = 6.0 ns; −55 to 125 °C",+ "conditions": "VCC = 2.0 V; CL = 50 pF; tr = tf = 6.0 ns; \u221255 to 125 \u00b0C", "source_page": 5, "source": "datasheet" },@@ -826,7 +832,7 @@ "min": null, "typ": null, "max": 53,- "conditions": "VCC = 4.5 V; CL = 50 pF; tr = tf = 6.0 ns; −55 to 125 °C",+ "conditions": "VCC = 4.5 V; CL = 50 pF; tr = tf = 6.0 ns; \u221255 to 125 \u00b0C", "source_page": 5, "source": "datasheet" },@@ -838,7 +844,7 @@ "min": null, "typ": null, "max": 45,- "conditions": "VCC = 6.0 V; CL = 50 pF; tr = tf = 6.0 ns; −55 to 125 °C",+ "conditions": "VCC = 6.0 V; CL = 50 pF; tr = tf = 6.0 ns; \u221255 to 125 \u00b0C", "source_page": 5, "source": "datasheet" },@@ -850,7 +856,7 @@ "min": null, "typ": null, "max": 295,- "conditions": "VCC = 2.0 V; CL = 50 pF; tr = tf = 6.0 ns; −55 to 125 °C",+ "conditions": "VCC = 2.0 V; CL = 50 pF; tr = tf = 6.0 ns; \u221255 to 125 \u00b0C", "source_page": 5, "source": "datasheet" },@@ -862,7 +868,7 @@ "min": null, "typ": null, "max": 59,- "conditions": "VCC = 4.5 V; CL = 50 pF; tr = tf = 6.0 ns; −55 to 125 °C",+ "conditions": "VCC = 4.5 V; CL = 50 pF; tr = tf = 6.0 ns; \u221255 to 125 \u00b0C", "source_page": 5, "source": "datasheet" },@@ -874,7 +880,7 @@ "min": null, "typ": null, "max": 50,- "conditions": "VCC = 6.0 V; CL = 50 pF; tr = tf = 6.0 ns; −55 to 125 °C",+ "conditions": "VCC = 6.0 V; CL = 50 pF; tr = tf = 6.0 ns; \u221255 to 125 \u00b0C", "source_page": 5, "source": "datasheet" },@@ -886,7 +892,7 @@ "min": null, "typ": null, "max": 265,- "conditions": "VCC = 2.0 V; CL = 50 pF; tr = tf = 6.0 ns; −55 to 125 °C",+ "conditions": "VCC = 2.0 V; CL = 50 pF; tr = tf = 6.0 ns; \u221255 to 125 \u00b0C", "source_page": 5, "source": "datasheet" },@@ -898,7 +904,7 @@ "min": null, "typ": null, "max": 53,- "conditions": "VCC = 4.5 V; CL = 50 pF; tr = tf = 6.0 ns; −55 to 125 °C",+ "conditions": "VCC = 4.5 V; CL = 50 pF; tr = tf = 6.0 ns; \u221255 to 125 \u00b0C", "source_page": 5, "source": "datasheet" },@@ -910,19 +916,19 @@ "min": null, "typ": null, "max": 45,- "conditions": "VCC = 6.0 V; CL = 50 pF; tr = tf = 6.0 ns; −55 to 125 °C",+ "conditions": "VCC = 6.0 V; CL = 50 pF; tr = tf = 6.0 ns; \u221255 to 125 \u00b0C", "source_page": 5, "source": "datasheet" }, { "name": "Output Pulse Width",- "symbol": "τ",+ "symbol": "\u03c4", "kind": "timing", "unit": "ms", "min": 0.59, "typ": null, "max": 0.81,- "conditions": "Rx = 10 kΩ, Cx = 0.1 µF, VCC = 5.0 V, CL = 50 pF; −55 to 125 °C",+ "conditions": "Rx = 10 k\u03a9, Cx = 0.1 \u00b5F, VCC = 5.0 V, CL = 50 pF; \u221255 to 125 \u00b0C", "source_page": 6, "source": "datasheet" },@@ -934,7 +940,7 @@ "min": -5, "typ": null, "max": 5,- "conditions": "Rx = 10 kΩ, Cx = 0.1 µF, CL = 50 pF",+ "conditions": "Rx = 10 k\u03a9, Cx = 0.1 \u00b5F, CL = 50 pF", "source_page": 6, "source": "datasheet" },@@ -946,7 +952,7 @@ "min": -10, "typ": null, "max": 10,- "conditions": "Rx = 10 kΩ, Cx = 0.1 µF, CL = 50 pF; −55 to 125 °C",+ "conditions": "Rx = 10 k\u03a9, Cx = 0.1 \u00b5F, CL = 50 pF; \u221255 to 125 \u00b0C", "source_page": 6, "source": "datasheet" }@@ -990,7 +996,7 @@ "mc74hc4538adr2g-hero.overlay.json", "mc74hc4538adr2g-etched.glb" ],- "visibility": "public",- "description": "onsemi Monostable Multivibrators, SOIC-16. Pinout settled in review by an AI reviewer against the manufacturer's datasheet, KiCad symbol/footprint/3D.",- "org": "adom"-}+ "visibility": {+ "public": true+ }+}