component
74HCT4851BQ-Q100
Public Made by Adomby adom
Nexperia Analog Switches, Multiplexers, DHVQFN-16-EP(2.5x3.5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "74hct4851bq-q100",
"version": "0.1.0",
"type": "component",
"description": "Nexperia Analog Switches, Multiplexers, DHVQFN-16-EP(2.5x3.5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"interface",
"74hct4851bq-q100",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
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"README.md",
"74hct4851bq-q100.kicad_sym",
"74hct4851bq-q100.kicad_mod",
"74hct4851bq-q100.glb",
"74hct4851bq-q100.step",
"74hct4851bq-q100.lbr",
"docs/hero.png",
"docs/74hct4851bq-q100-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"74hct4851bq-q100-hero.glb",
"74hct4851bq-q100-hero.overlay.json",
"74hct4851bq-q100-etched.glb"
],
"component": {
"mpn": "74HCT4851BQ-Q100",
"manufacturer": "Nexperia",
"package": "DHVQFN-16-EP(2.5x3.5)",
"pin_count": 17,
"category": "Interface",
"subcategory": "Analog Switches, Multiplexers",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588915230092480513",
"parts": {
"symbol": "74hct4851bq-q100.kicad_sym",
"footprint": "74hct4851bq-q100.kicad_mod",
"model_3d": "74hct4851bq-q100-hero.glb",
"model_3d_plain": "74hct4851bq-q100-etched.glb",
"model_3d_step": "74hct4851bq-q100-etched.step",
"model_3d_step_plain": "74hct4851bq-q100.step",
"lbr": "74hct4851bq-q100.lbr"
},
"distributor_links": {
"lcsc": "C547764"
},
"distributor_check": {
"checked_at": "2026-10-21T01:59:06Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "Y4",
"type": "bidirectional",
"description": "Independent analog input/output channel 4 of the 8-channel switch; switch voltage must stay within 0 V to VCC (absolute limit VCC + 0.5 V and -0.5 V)."
},
{
"number": "2",
"name": "Y6",
"type": "bidirectional",
"description": "Independent analog input/output channel 6 of the 8-channel switch; switch voltage must stay within 0 V to VCC (absolute limit -0.5 V to VCC + 0.5 V)."
},
{
"number": "3",
"name": "Z",
"type": "bidirectional",
"description": "Common analog input/output that connects to the selected Yn channel when E is LOW; switch voltage must stay within 0 V to VCC (absolute limit -0.5 V to VCC + 0.5 V)."
},
{
"number": "4",
"name": "Y7",
"type": "bidirectional",
"description": "Independent analog input/output channel 7 of the 8-channel switch; switch voltage must stay within 0 V to VCC (absolute limit -0.5 V to VCC + 0.5 V)."
},
{
"number": "5",
"name": "Y5",
"type": "bidirectional",
"description": "Independent analog input/output channel 5 of the 8-channel switch; switch voltage must stay within 0 V to VCC (absolute limit -0.5 V to VCC + 0.5 V)."
},
{
"number": "6",
"name": "E",
"type": "input",
"description": "Active-LOW enable input; when HIGH all switches are OFF regardless of S0 to S2, and the HIGH-level input must meet VIH (for 74HCT4851-Q100, minimum 2.0 V at VCC = 4.5 V to 5.5 V)."
},
{
"number": "7",
"name": "n.c.",
"type": "unconnected",
"description": "Not connected; the datasheet specifies no electrical function for this terminal."
},
{
"number": "8",
"name": "GND",
"type": "power_in",
"description": "Ground reference (0 V) for all voltages in the datasheet."
},
{
"number": "9",
"name": "S2",
"type": "input",
"description": "Select input, most significant bit of the channel address (with E LOW, S2 S1 S0 choose Y0 to Y7 per the function table); input voltage must stay within 0 V to VCC."
},
{
"number": "10",
"name": "S1",
"type": "input",
"description": "Select input, middle bit of the channel address (with E LOW, S2 S1 S0 choose Y0 to Y7 per the function table); input voltage must stay within 0 V to VCC."
},
{
"number": "11",
"name": "S0",
"type": "input",
"description": "Select input, least significant bit of the channel address (with E LOW, S2 S1 S0 choose Y0 to Y7 per the function table); input voltage must stay within 0 V to VCC."
},
{
"number": "12",
"name": "Y3",
"type": "bidirectional",
"description": "Independent analog input/output channel 3 of the 8-channel switch; switch voltage must stay within 0 V to VCC (absolute limit -0.5 V to VCC + 0.5 V)."
},
{
"number": "13",
"name": "Y0",
"type": "bidirectional",
"description": "Independent analog input/output channel 0 of the 8-channel switch; switch voltage must stay within 0 V to VCC (absolute limit -0.5 V to VCC + 0.5 V)."
},
{
"number": "14",
"name": "Y1",
"type": "bidirectional",
"description": "Independent analog input/output channel 1 of the 8-channel switch; switch voltage must stay within 0 V to VCC (absolute limit -0.5 V to VCC + 0.5 V)."
},
{
"number": "15",
"name": "Y2",
"type": "bidirectional",
"description": "Independent analog input/output channel 2 of the 8-channel switch; switch voltage must stay within 0 V to VCC (absolute limit -0.5 V to VCC + 0.5 V)."
},
{
"number": "16",
"name": "VCC",
"type": "power_in",
"description": "Supply voltage: recommended 2.0 V to 6.0 V for 74HC4851-Q100 and 4.5 V to 5.5 V for 74HCT4851-Q100; absolute maximum -0.5 V to +7.0 V."
},
{
"number": "17",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The DHVQFN16 package has an exposed center thermal pad marked GND(1) in the top-view drawing. It has; Pin types for the analog channels Y0 to Y7 and Z were mapped to KiCad 'bidirectional' because the da; Pin numbers were taken from Table 2 (pin description) and cross-checked against the BQ (DHVQFN16) to",
"exposed pad 17 added from the footprint"
],
"pages_sent": 19,
"cost_usd": 0.0949,
"at": "2026-10-21T01:54:15"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588915230092480513",
"pages": 19,
"sha256": "0b621ccffb78d38f",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 17,
"described": 17,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
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"footprint": "viewers/footprint.html"
},
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"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
2.52,
3.52,
0.9
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "dae2b68bf22fa1974447da241360ff5a81c02a2a7642652b97b9f379875948aa",
"checked": "2026-10-21",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "74hct4851bq-q100-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
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"sha256": "d7afe1eeba4035c7144dd4643cbcbbaad3ce95c934e8f9d7b4ebedbd18c43bff",
"checked": "2026-10-21",
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}
]
}
}