component
SN74LS157N
Public Made by Adomby adom
lingxingic Signal Switches, Multiplexers, Decoders, DIP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
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"title": "SN74LS157N",
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"category": "Logic",
"subcategory": "Signal Switches, Multiplexers, Decoders",
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"lbr": "sn74ls157n.lbr"
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"lcsc": "C22449618",
"digikey": "2156-SN74LS157N-ND",
"mouser": "595-SN74LS157N"
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{
"number": "1",
"name": "S",
"type": "input",
"description": "Common data select input that chooses whether each multiplexer passes source 0 (nI0) or source 1 (nI1) to its output."
},
{
"number": "2",
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"description": "Data input from source 0 for multiplexer 1, selected when S is LOW."
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{
"number": "3",
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"description": "Data input from source 1 for multiplexer 1, selected when S is HIGH."
},
{
"number": "4",
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"description": "Multiplexer 1 output; forced LOW when the enable input E is HIGH."
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{
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{
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{
"number": "7",
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"type": "output",
"description": "Multiplexer 2 output; forced LOW when the enable input E is HIGH."
},
{
"number": "8",
"name": "GND",
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"description": "Ground (0 V) reference for the device."
},
{
"number": "9",
"name": "3Y",
"type": "output",
"description": "Multiplexer 3 output; forced LOW when the enable input E is HIGH."
},
{
"number": "10",
"name": "3I1",
"type": "input",
"description": "Data input from source 1 for multiplexer 3, selected when S is HIGH."
},
{
"number": "11",
"name": "3I0",
"type": "input",
"description": "Data input from source 0 for multiplexer 3, selected when S is LOW."
},
{
"number": "12",
"name": "4Y",
"type": "output",
"description": "Multiplexer 4 output; forced LOW when the enable input E is HIGH."
},
{
"number": "13",
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"description": "Data input from source 1 for multiplexer 4, selected when S is HIGH."
},
{
"number": "14",
"name": "4I0",
"type": "input",
"description": "Data input from source 0 for multiplexer 4, selected when S is LOW."
},
{
"number": "15",
"name": "E",
"type": "input",
"description": "Enable input, active LOW; when it is HIGH, all outputs (1Y to 4Y) are forced LOW regardless of the other inputs."
},
{
"number": "16",
"name": "VCC",
"type": "power_in",
"description": "Supply voltage; recommended operating range is 2.0 V to 6.0 V and absolute maximum is 7.0 V."
}
],
"provenance": {
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"guards": "pin_guards 0.1: passed",
"guard_notes": [
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"name": "input leakage current",
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"name": "propagation delay nI0, nI1 to nY",
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