component
74AHC164S14-13
Public Made by Adomby adom
Diodes Incorporated Shift Registers, SO-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"component": {
"mpn": "74AHC164S14-13",
"manufacturer": "Diodes Incorporated",
"package": "SO-14",
"pin_count": 14,
"category": "Logic",
"subcategory": "Shift Registers",
"datasheet": "https://www.diodes.com/assets/Datasheets/74AHC164S14-13.pdf",
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"pins": [
{
"number": "1",
"name": "DSA",
"type": "input",
"description": "Serial data input; data on DSA and DSB is logically ANDED and must be stable before and after the CP rising edge to meet set-up and hold timing."
},
{
"number": "2",
"name": "DSB",
"type": "input",
"description": "Serial data input; data on DSB is logically ANDED with DSA and must be stable before and after the CP rising edge to meet set-up and hold timing."
},
{
"number": "3",
"name": "Q0",
"type": "output",
"description": "Data output for stage 0; receives the ANDed serial input data on each LOW-to-HIGH transition of CP and is set LOW by MR."
},
{
"number": "4",
"name": "Q1",
"type": "output",
"description": "Data output for stage 1; takes the value of Q0 on each LOW-to-HIGH CP transition and is set LOW by MR."
},
{
"number": "5",
"name": "Q2",
"type": "output",
"description": "Data output for stage 2; takes the value of Q1 on each LOW-to-HIGH CP transition and is set LOW by MR."
},
{
"number": "6",
"name": "Q3",
"type": "output",
"description": "Data output for stage 3; takes the value of Q2 on each LOW-to-HIGH CP transition and is set LOW by MR."
},
{
"number": "7",
"name": "GND",
"type": "power_in",
"description": "Ground reference pin."
},
{
"number": "8",
"name": "CP",
"type": "input",
"description": "Clock pulse input, positive-edge triggered; shifts data into Q0 and through Qn on each LOW-to-HIGH transition."
},
{
"number": "9",
"name": "MR",
"type": "input",
"description": "Asynchronous active-LOW master reset; when LOW sets all Qn LOW regardless of serial or clock inputs, and must return HIGH for a recovery time before the next CP positive edge."
},
{
"number": "10",
"name": "Q4",
"type": "output",
"description": "Data output for stage 4; takes the value of Q3 on each LOW-to-HIGH CP transition and is set LOW by MR."
},
{
"number": "11",
"name": "Q5",
"type": "output",
"description": "Data output for stage 5; takes the value of Q4 on each LOW-to-HIGH CP transition and is set LOW by MR."
},
{
"number": "12",
"name": "Q6",
"type": "output",
"description": "Data output for stage 6; takes the value of Q5 on each LOW-to-HIGH CP transition and is set LOW by MR."
},
{
"number": "13",
"name": "Q7",
"type": "output",
"description": "Data output for stage 7; takes the value of Q6 on each LOW-to-HIGH CP transition and is set LOW by MR."
},
{
"number": "14",
"name": "VCC",
"type": "power_in",
"description": "Supply voltage; recommended operating range is 2.0 V to 5.5 V."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
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"primary_model": "claude-haiku-5-5",
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"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
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],
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"at": "2026-10-17T17:47:58"
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"sha256": "1327a73f89c25588",
"source_tier": "mfr"
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