component
74HC4051N
Public Made by Adomby adom
HGSEMI Analog Switches, Multiplexers, DIP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"number": "1",
"name": "Y4",
"type": "bidirectional",
"description": "Independent analog input/output channel 4, which connects to common Z when selected by A0-A2 with E low; analog voltage must stay between VEE and VDD and switch current is limited to ±10 mA."
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{
"number": "2",
"name": "Y6",
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"description": "Independent analog input/output channel 6, which connects to common Z when selected by A0-A2 with E low; analog voltage must stay between VEE and VDD and switch current is limited to ±10 mA."
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{
"number": "3",
"name": "Z",
"type": "bidirectional",
"description": "Common analog input/output that connects to whichever Y channel is selected; Y and Z voltages must not exceed VDD or fall below VEE, and switch current is limited to ±10 mA."
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{
"number": "4",
"name": "Y7",
"type": "bidirectional",
"description": "Independent analog input/output channel 7, which connects to common Z when selected by A0-A2 with E low; analog voltage must stay between VEE and VDD and switch current is limited to ±10 mA."
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{
"number": "5",
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"type": "bidirectional",
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{
"number": "6",
"name": "E",
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"description": "Active-low enable input; when driven high, all switches are turned off (high impedance) and A0-A2 are ignored, while the datasheet's absolute maximum input voltage is VDD+0.5 V relative to VSS."
},
{
"number": "7",
"name": "VEE",
"type": "power_in",
"description": "Negative power supply; the datasheet limits VDD−VEE to 9 V maximum and VEE to −12 V to +0.5 V (referenced to the supply) in absolute maximum ratings."
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{
"number": "8",
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"type": "power_in",
"description": "Ground reference for the digital control inputs (A0-A2 and E); when the device is used as a digital multiplexer, VEE and VSS are tied together, typically to ground."
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{
"number": "9",
"name": "A2",
"type": "input",
"description": "Channel select input bit 2 (most significant) that, with A1 and A0, selects one of Y0-Y7 when E is low; the datasheet notes these inputs must not be changed to switch channels while E is high because they are ignored."
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{
"number": "10",
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"type": "input",
"description": "Channel select input bit 1 that, with A2 and A0, selects one of Y0-Y7 when E is low; digital input range is 0 V to VDD."
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{
"number": "11",
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"description": "Channel select input bit 0 (least significant) that, with A2 and A1, selects one of Y0-Y7 when E is low; digital input range is 0 V to VDD."
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{
"number": "12",
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"description": "Independent analog input/output channel 3, which connects to common Z when selected by A0-A2 with E low; analog voltage must stay between VEE and VDD and switch current is limited to ±10 mA."
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{
"number": "13",
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"description": "Independent analog input/output channel 0, which connects to common Z when selected by A0-A2 with E low; analog voltage must stay between VEE and VDD and switch current is limited to ±10 mA."
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{
"number": "14",
"name": "Y1",
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"description": "Independent analog input/output channel 1, which connects to common Z when selected by A0-A2 with E low; analog voltage must stay between VEE and VDD and switch current is limited to ±10 mA."
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{
"number": "15",
"name": "Y2",
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},
{
"number": "16",
"name": "VDD",
"type": "power_in",
"description": "Positive power supply; the datasheet specifies VDD−VEE of 3.0 V to 9.0 V, with absolute maximum VDD of −0.5 V to +12 V."
}
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"at": "2026-10-19T06:54:56"
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"conditions": "Tamb=25℃; RL=10kΩ; CL=50pF; Vis=VDD=5V (square wave)",
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"name": "Propagation delay An→Yn / An→Z (high to low)",
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"name": "Propagation delay An→Yn / An→Z (high to low)",
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"name": "Output enable time E→Yn/Z (off to high)",
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"name": "Quiescent supply current",
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