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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"title": "LTC4332IUFD#PBF",
"brief": "Analog Devices Signal Buffers, Repeaters, Splitters, QFN-20-EP(4x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"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",
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"digikey": "161-LTC4332IUFD#PBF-ND",
"mouser": "584-LTC4332IUFD#PBF"
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"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."
}
],
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"pages": 22,
"sha256": "83bc7d57f3c5250e",
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"cad": "KiCad official (CC-BY-SA 4.0)",
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"zmin_mm": 0,
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"footprint_binding": "identity",
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"package_dims": {
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"source_page": 20,
"D": {
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"E1": {
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"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
"model_check": {
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"Package": "QFN-20-EP(4x5)",
"Category": "Interface ICs",
"Pins": "21"
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"characteristics": {
"version": 1,
"source": "datasheet",
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"rows": [
{
"name": "Operating Supply Range (VCC)",
"symbol": "VCC",
"kind": "recommended_operating",
"unit": "V",
"min": 3,
"typ": null,
"max": 5.5,
"conditions": "",
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{
"name": "Logic Interface Supply Range (VL)",
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"min": 1.62,
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{
"name": "Operating Temperature Range, LTC4332I grade",
"symbol": "TA",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "LTC4332I",
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{
"name": "Supply Voltage VCC absolute maximum",
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{
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{
"name": "Logic Signals ON, LINK, INT, SSC absolute maximum",
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{
"name": "Interface I/O A, B, Y, Z absolute maximum",
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"unit": "V",
"min": -60,
"typ": null,
"max": 60,
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"source_page": 2,
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{
"name": "Storage Temperature Range",
"symbol": "TSTG",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Maximum Junction Temperature",
"symbol": "TJMAX",
"kind": "thermal",
"unit": "°C",
"min": null,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Thermal Resistance Junction-to-Ambient",
"symbol": "θJA",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 43,
"max": null,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Thermal Resistance Junction-to-Case",
"symbol": "θJC",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 3.4,
"max": null,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Operating Supply Current, Low Power",
"symbol": "ICC",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 1,
"max": 40,
"conditions": "Low Power: ON = 0",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Operating Supply Current, Idle",
"symbol": "ICC",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": null,
"max": 12,
"conditions": "Idle: ON = 1, Idle SPI",
"source_page": 2,
"source": "datasheet"
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{
"name": "Operating Supply Current, Active",
"symbol": "ICC",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": null,
"max": 120,
"conditions": "Active: SCK = 2MHz, SPEED INDEX = 8 (Note 7)",
"source_page": 2,
"source": "datasheet"
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{
"name": "Logic Supply Current",
"symbol": "IL",
"kind": "electrical",
"unit": "µA",
"min": -140,
"typ": null,
"max": 140,
"conditions": "",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Differential Driver Output Voltage, no load",
"symbol": "|VOD|",
"kind": "electrical",
"unit": "V",
"min": 1.5,
"typ": null,
"max": null,
"conditions": "R = ∞",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Differential Driver Output Voltage, R = 27Ω",
"symbol": "|VOD|",
"kind": "electrical",
"unit": "V",
"min": 1.5,
"typ": null,
"max": 5,
"conditions": "R = 27Ω (Figure 1)",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Maximum Driver Short-Circuit Current",
"symbol": "IOSD",
"kind": "electrical",
"unit": "mA",
"min": -150,
"typ": null,
"max": 250,
"conditions": "–60V ≤ (Y or Z) ≤ 60V (Figure 2)",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Receiver Input Resistance",
"symbol": "RIN",
"kind": "electrical",
"unit": "kΩ",
"min": null,
"typ": 112,
"max": null,
"conditions": "0V ≤ VCC ≤ 5.5V (Figure 3)",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Receiver Common Mode Input Voltage",
"symbol": "VCM",
"kind": "electrical",
"unit": "V",
"min": -25,
"typ": null,
"max": 25,
"conditions": "",
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{
"name": "Differential Input Signal Threshold",
"symbol": "VTH",
"kind": "electrical",
"unit": "mV",
"min": -200,
"typ": null,
"max": 200,
"conditions": "–25V < VCM < 25V (Note 2)",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Digital Input Capacitance",
"symbol": "CIN",
"kind": "electrical",
"unit": "pF",
"min": null,
"typ": 10,
"max": null,
"conditions": "Note 2",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Digital Input Current (ON, REMOTE, SPEED1, SPEED2)",
"symbol": "IIN",
"kind": "electrical",
"unit": "µA",
"min": -60,
"typ": null,
"max": 60,
"conditions": "VIN = 0V to VL",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Digital Input Current (SCK, MOSI, SS1, SS2, SS3, SSC)",
"symbol": "IIN",
"kind": "electrical",
"unit": "µA",
"min": -60,
"typ": null,
"max": 60,
"conditions": "VIN = 0V to VL, REMOTE = 0",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Digital Input Current (MISO)",
"symbol": "IIN",
"kind": "electrical",
"unit": "µA",
"min": -60,
"typ": null,
"max": 60,
"conditions": "VIN = 0V to VL, REMOTE = 1",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Digital Input Current (INT)",
"symbol": "IIN",
"kind": "electrical",
"unit": "µA",
"min": -5,
"typ": null,
"max": 5,
"conditions": "VIN = 0V to VL, REMOTE = 1",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Output Source Current (Short-Circuit)",
"symbol": "IOUT",
"kind": "electrical",
"unit": "mA",
"min": -80,
"typ": null,
"max": 80,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "High-Z Output Leakage Current (LINK, INT)",
"symbol": "IOZ",
"kind": "electrical",
"unit": "µA",
"min": -5,
"typ": null,
"max": 5,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "High-Z Output Leakage Current (MOSI)",
"symbol": "IOZ",
"kind": "electrical",
"unit": "µA",
"min": -60,
"typ": null,
"max": 60,
"conditions": "REMOTE = 1",
"source_page": 3,
"source": "datasheet"
},
{
"name": "High-Z Output Leakage Current (MISO)",
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"kind": "electrical",
"unit": "µA",
"min": -60,
"typ": null,
"max": 60,
"conditions": "REMOTE = 0",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Pulse Width of ON low for Valid Reset Condition",
"symbol": "tON_LOW",
"kind": "timing",
"unit": "µs",
"min": null,
"typ": 1,
"max": null,
"conditions": "Figure 6",
"source_page": 3,
"source": "datasheet"
},
{
"name": "ON Rise to Control Interface (SSC) Ready",
"symbol": "tREADY",
"kind": "timing",
"unit": "µs",
"min": null,
"typ": 15,
"max": null,
"conditions": "",
"source_page": 3,
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},
{
"name": "Delay from Local ON Low for Valid Remote Reset Condition",
"symbol": "tREMOTE_RESET",
"kind": "timing",
"unit": "ms",
"min": null,
"typ": 180,
"max": null,
"conditions": "",
"source_page": 3,
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},
{
"name": "Logic Output Rise/Fall (SCK, MISO, MOSI)",
"symbol": "tR, tF",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": 8,
"max": null,
"conditions": "CL = 20pF",
"source_page": 3,
"source": "datasheet"
},
{
"name": "SCK Input Frequency (SPEED INDEX = 8)",
"symbol": "fSCK:SLAVE",
"kind": "timing",
"unit": "kHz",
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