component
LTC4332IUFD#PBF
Public Made by Adomby adom
Analog Devices Signal Buffers, Repeaters, Splitters, QFN-20-EP(4x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
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"version": "0.1.0",
"type": "component",
"description": "Analog Devices Signal Buffers, Repeaters, Splitters, QFN-20-EP(4x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"interface ics",
"ltc4332iufd#pbf",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
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"path": "docs/hero.png"
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"ltc4332iufd-pbf.step",
"ltc4332iufd-pbf.lbr",
"docs/hero.png",
"docs/ltc4332iufd-pbf-datasheet.pdf",
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"viewers/footprint.html",
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"ltc4332iufd-pbf-hero.overlay.json",
"ltc4332iufd-pbf-etched.glb"
],
"component": {
"mpn": "LTC4332IUFD#PBF",
"manufacturer": "Analog Devices",
"package": "QFN-20-EP(4x5)",
"pin_count": 21,
"category": "Interface ICs",
"subcategory": "Signal Buffers, Repeaters, Splitters",
"datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/LTC4332.pdf",
"parts": {
"symbol": "ltc4332iufd-pbf.kicad_sym",
"footprint": "ltc4332iufd-pbf.kicad_mod",
"model_3d": "ltc4332iufd-pbf-hero.glb",
"model_3d_plain": "ltc4332iufd-pbf-etched.glb",
"model_3d_step": "ltc4332iufd-pbf-etched.step",
"model_3d_step_plain": "ltc4332iufd-pbf.step",
"lbr": "ltc4332iufd-pbf.lbr"
},
"distributor_links": {
"lcsc": "C688168",
"digikey": "161-LTC4332IUFD#PBF-ND",
"mouser": "584-LTC4332IUFD#PBF"
},
"distributor_check": {
"checked_at": "2026-10-30T21:20:06Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "161-LTC4332IUFD#PBF-ND",
"status": "found"
},
"mouser": {
"pn": "584-LTC4332IUFD#PBF",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "VCC",
"type": "power_in",
"description": "Main supply voltage, 3.0V ≤ VCC ≤ 5.5V; bypass with 4.7µF ceramic capacitor to GND."
},
{
"number": "2",
"name": "VL",
"type": "power_in",
"description": "Logic interface supply voltage, 1.62V ≤ VL ≤ 5.5V; bypass with 1µF ceramic capacitor to GND."
},
{
"number": "3",
"name": "ON",
"type": "input",
"description": "Enable input; set high for operation, set low for low-power mode where the internal reset is held and outputs are disabled; connect to VL if unused."
},
{
"number": "4",
"name": "REMOTE",
"type": "input",
"description": "Operating mode select; set low for local SPI slave mode and high for SPI master mode on the remote side; weakly pulled to GND."
},
{
"number": "5",
"name": "LINK",
"type": "output",
"description": "Open-drain link status output driven low when link communication is established; requires external pull-up to VL if monitored, otherwise float or connect to GND."
},
{
"number": "6",
"name": "SSC",
"type": "input",
"description": "Active-low control interface slave select that must be set high when the SPI bus is idle; used only in local mode, weakly pulled to VL and may be left unconnected, and left unconnected in remote mode."
},
{
"number": "7",
"name": "SCK",
"type": "bidirectional",
"description": "Serial port clock: an input in local mode (MOSI captured on rising edge, MISO updated on falling edge) and an output providing the clock to remote devices in remote mode."
},
{
"number": "8",
"name": "MOSI",
"type": "bidirectional",
"description": "Master Out Slave In: serial data input for the slave selects in local mode (captured on SCK rising edge) and serial data output in remote mode; contains a weak bus-hold."
},
{
"number": "9",
"name": "MISO",
"type": "bidirectional",
"description": "Master In Slave Out: serial data output for the slave selects in local mode (driver disabled when SS1-3 and SSC are high) and serial data input in remote mode, weakly pulled to VL; contains a weak bus-hold."
},
{
"number": "10",
"name": "INT",
"type": "bidirectional",
"description": "Remote-to-local interrupt: open-drain output in local mode and input in remote mode, also the level-sensitive active-low interrupt for the control interface; connect pull-up to VL on the local side and do not allow to float on the remote side."
},
{
"number": "11",
"name": "SS1",
"type": "bidirectional",
"description": "Remote slave select 1 (active low): an input in local mode that starts a remote SPI transfer when set low, and an output to a remote SPI device in remote mode; must be high when the SPI bus is idle and is weakly pulled to VL."
},
{
"number": "12",
"name": "SS2",
"type": "bidirectional",
"description": "Remote slave select 2 (active low): an input in local mode that starts a remote SPI transfer when set low, and an output to a remote SPI device in remote mode; must be high when the SPI bus is idle and is weakly pulled to VL."
},
{
"number": "13",
"name": "SS3",
"type": "bidirectional",
"description": "Remote slave select 3 (active low): an input in local mode that starts a remote SPI transfer when set low, and an output to a remote SPI device in remote mode; must be high when the SPI bus is idle and is weakly pulled to VL."
},
{
"number": "14",
"name": "SPEED1",
"type": "input",
"description": "3-state input which, together with SPEED2, selects link baud rate and remote SCK timing parameters; set high, low, or float as defined in Table 2."
},
{
"number": "15",
"name": "SPEED2",
"type": "input",
"description": "3-state input which, together with SPEED1, selects link baud rate and remote SCK timing parameters; set high, low, or float as defined in Table 2."
},
{
"number": "16",
"name": "GND",
"type": "power_in",
"description": "Ground; connect to GND."
},
{
"number": "17",
"name": "Y",
"type": "output",
"description": "Non-inverting link driver output; connect to the A pin of a second LTC4332 set to the opposite mode."
},
{
"number": "18",
"name": "Z",
"type": "output",
"description": "Inverting link driver output; connect to the B pin of a second LTC4332 set to the opposite mode."
},
{
"number": "19",
"name": "B",
"type": "input",
"description": "Inverting link receiver input; connect to the Z pin of the second LTC4332 set to the opposite mode."
},
{
"number": "20",
"name": "A",
"type": "input",
"description": "Non-inverting link receiver input; connect to the Y pin of the second LTC4332 set to the opposite mode."
},
{
"number": "21",
"name": "GND",
"type": "power_in",
"description": "Exposed pad on the package bottom is GND and must be soldered to the PCB."
}
],
"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 datasheet defines these pins as inputs in local mode and outputs (or the reverse) in remote mode; SPEED1 and SPEED2 are 3-state inputs (high, low, or float); typed as input, with float defined by Ta; Pin 21 is the exposed pad on the package bottom, not a numbered lead; it is listed here because the "
],
"pages_sent": 13,
"cost_usd": 0.0859,
"at": "2026-10-30T21:19:46"
},
"datasheet": {
"url": "https://www.analog.com/media/en/technical-documentation/data-sheets/LTC4332.pdf",
"pages": 22,
"sha256": "83bc7d57f3c5250e",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 21,
"described": 21,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
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"footprint": "viewers/footprint.html"
},
"models_3d": [
{
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"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4.0,
5.0,
0.77
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "b7baaecccc8e434d25dca4018e56abf0d52bfa4ab833f927054939e1c879cf4e",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "ltc4332iufd-pbf-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4.0,
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"zmin_mm": 0.0,
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"footprint_binding": "identity",
"sha256": "f4f30229ecea3121815ca90097af33a2683b8691bbfaa13580cff8477785ad5e",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
],
"package_dims": {
"package_code": "UFD20",
"source_page": 20,
"D": {
"nom_mm": 5.0,
"range_mm": [
null,
null
]
},
"E1": {
"nom_mm": 4.0,
"range_mm": [
null,
null
]
},
"e": {
"nom_mm": 0.5,
"range_mm": [
null,
null
]
},
"A": {
"nom_mm": 0.75,
"range_mm": [
null,
null
]
},
"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
"model_check": {
"file": "ltc4332iufd-pbf.step",
"verdict": "PASS",
"reasons": [
"height within the datasheet's package drawing"
],
"by": "factory/package_fit.py"
}
}
}
}