component
USB3370B-EZK-TR
Public Made by Adomby adom
Microchip Tech Receivers & Transceivers, QFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "usb3370b-ezk-tr",
"title": "USB3370B-EZK-TR",
"brief": "Microchip Tech Receivers & Transceivers, QFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
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"logic ics",
"usb3370b-ezk-tr",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "USB3370B-EZK-TR",
"manufacturer": "Microchip Tech",
"package": "QFN-32-EP(5x5)",
"pin_count": 33,
"category": "Logic ICs",
"subcategory": "Receivers & Transceivers",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/6581e7a87ccdecd00734a9b9086efbd5.pdf",
"parts": {
"symbol": "usb3370b-ezk-tr.kicad_sym",
"footprint": "usb3370b-ezk-tr.kicad_mod",
"model_3d": "usb3370b-ezk-tr-hero.glb",
"model_3d_plain": "usb3370b-ezk-tr-etched.glb",
"model_3d_step": "usb3370b-ezk-tr-etched.step",
"model_3d_step_plain": "usb3370b-ezk-tr.step",
"lbr": "usb3370b-ezk-tr.lbr"
},
"distributor_links": {
"lcsc": "C622623",
"digikey": "USB3370B-EZK-TR-ND",
"mouser": "886-USB3370B-EZK-TR"
},
"distributor_check": {
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"source": "Component Ocean /api/assign-pns",
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"pn": "USB3370B-EZK-TR-ND",
"status": "found"
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"pn": "886-USB3370B-EZK-TR",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "DATA[0]",
"type": "bidirectional",
"description": "ULPI bidirectional data bus bit 0 (LSB), CMOS I/O; in UART mode it carries TXD to the DM pin."
},
{
"number": "2",
"name": "VDDIO",
"type": "power_in",
"description": "ULPI interface supply voltage, specified at 1.8V to 3.3V."
},
{
"number": "3",
"name": "RBIAS",
"type": "passive",
"description": "Bias resistor pin requiring a 10kΩ (±1%) resistor to ground placed as close as possible to the device, with nominal voltage of 0.8V during ULPI operation."
},
{
"number": "4",
"name": "DM",
"type": "bidirectional",
"description": "D- pin of the USB cable, an analog I/O."
},
{
"number": "5",
"name": "DP",
"type": "bidirectional",
"description": "D+ pin of the USB cable, an analog I/O."
},
{
"number": "6",
"name": "EXTVBUS",
"type": "input",
"description": "External Vbus detect input, tolerant to 0 to 5.0V, connected to the fault output of an external USB power switch or Vbus Valid comparator and internally pulled down."
},
{
"number": "7",
"name": "ID",
"type": "input",
"description": "USB ID input, connected to VDD33 for device, grounded for host, and to the USB connector for OTG applications."
},
{
"number": "8",
"name": "GND",
"type": "power_in",
"description": "Ground pin for the device."
},
{
"number": "9",
"name": "NC",
"type": "unconnected",
"description": "No connect; leave pin floating."
},
{
"number": "10",
"name": "NC",
"type": "unconnected",
"description": "No connect; leave pin floating."
},
{
"number": "11",
"name": "VBAT",
"type": "power_in",
"description": "Regulator input supplied from 3.0V to 5.5V that feeds the integrated 3.3V LDO and must never be connected to VDD33."
},
{
"number": "12",
"name": "CPEN_N",
"type": "output",
"description": "Open-drain external 5V supply enable output, active low, tri-stated on power-on reset and tolerant to 5.5V maximum."
},
{
"number": "13",
"name": "VBUS",
"type": "power_in",
"description": "Analog pin for VBUS comparator inputs and VBUS pulsing during session request, requiring an external resistor RVBUS to the USB connector and tolerant to 30V with that resistor."
},
{
"number": "14",
"name": "VDD33",
"type": "power_out",
"description": "3.3V regulator output requiring a 1.0uF (<1 ohm ESR) bypass capacitor to ground placed close to the device, with 3.0V to 3.6V range."
},
{
"number": "15",
"name": "REFCLK",
"type": "input",
"description": "Reference clock or XI crystal input in ULPI Clock Output mode, and 60MHz ULPI clock input in ULPI Clock Input mode, accepting 0 to 3.6V drive."
},
{
"number": "16",
"name": "XO",
"type": "output",
"description": "Crystal output pin that should be left floating when an external clock is applied on XI."
},
{
"number": "17",
"name": "RESETB",
"type": "input",
"description": "Active-low reset and suspend input that disables both regulators when low and resets the ULPI registers when asserted for at least 1 microsecond."
},
{
"number": "18",
"name": "VDD18",
"type": "power_out",
"description": "1.8V regulator output requiring a 1.0uF (<1 ohm ESR) bypass capacitor to ground placed close to the device, with 1.6V to 2.0V range."
},
{
"number": "19",
"name": "DIR",
"type": "output",
"description": "Data bus direction output; driven high when the PHY has data for the Link and low when it monitors the bus for commands."
},
{
"number": "20",
"name": "STP",
"type": "input",
"description": "Active-high stop input asserted by the Link for one clock cycle to stop the current data stream on the bus."
},
{
"number": "21",
"name": "NXT",
"type": "output",
"description": "Active-high next output asserted by the PHY to throttle data, indicating when the current byte has been accepted."
},
{
"number": "22",
"name": "VDDIO",
"type": "power_in",
"description": "ULPI interface supply voltage, specified at 1.8V to 3.3V."
},
{
"number": "23",
"name": "DATA[7]",
"type": "bidirectional",
"description": "ULPI bidirectional data bus bit 7 (MSB), CMOS I/O."
},
{
"number": "24",
"name": "DATA[6]",
"type": "bidirectional",
"description": "ULPI bidirectional data bus bit 6, CMOS I/O."
},
{
"number": "25",
"name": "DATA[5]",
"type": "bidirectional",
"description": "ULPI bidirectional data bus bit 5, CMOS I/O."
},
{
"number": "26",
"name": "DATA[4]",
"type": "bidirectional",
"description": "ULPI bidirectional data bus bit 4, CMOS I/O."
},
{
"number": "27",
"name": "CLKOUT",
"type": "output",
"description": "60MHz ULPI clock output in ULPI Clock Output mode, driven synchronous to all ULPI signals, and connected to VDDIO to select ULPI Clock Input mode."
},
{
"number": "28",
"name": "DATA[3]",
"type": "bidirectional",
"description": "ULPI bidirectional data bus bit 3, CMOS I/O."
},
{
"number": "29",
"name": "NC",
"type": "unconnected",
"description": "No connect; leave pin floating."
},
{
"number": "30",
"name": "VDDIO",
"type": "power_in",
"description": "ULPI interface supply voltage, specified at 1.8V to 3.3V."
},
{
"number": "31",
"name": "DATA[2]",
"type": "bidirectional",
"description": "ULPI bidirectional data bus bit 2, CMOS I/O."
},
{
"number": "32",
"name": "DATA[1]",
"type": "bidirectional",
"description": "ULPI bidirectional data bus bit 1, CMOS I/O."
},
{
"number": "33",
"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": {
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"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 gives only a 32-pin QFN 5x5 mm pinout; the -EZK-TR ordering suffix is not itemized, so",
"1/33 pin names appear NOWHERE in the datasheet text: ['16:XO@p7']"
],
"pages_sent": 11,
"cost_usd": 0.0285,
"at": "2026-10-28T16:14:05"
},
"datasheet": {
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"pages": 75,
"sha256": "df0f7f83b17ead20",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
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"described": 33,
"cites_pages": true,
"refuses_to_fabricate": true
}
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{
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"metadata": {
"specs": {
"Manufacturer": "Microchip Tech",
"Package": "QFN-32-EP(5x5)",
"Category": "Logic ICs",
"Pins": "33"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "df0f7f83b17ead20c6ec843f6d16449899bfe1aea33ffe5cee1bde950bb6a5ca",
"rows": [
{
"name": "Maximum VBUS, VBAT and ID voltage to GND",
"symbol": "VMAX_USB",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.5,
"typ": null,
"max": 6,
"conditions": "Voltage measured at pin. VBUS tolerant to 30V with external RVBUS.",
"source_page": 9,
"source": "datasheet"
},
{
"name": "DP and DM voltage to GND",
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{
"name": "Maximum VDD18 voltage to Ground",
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{
"name": "Maximum VDDIO voltage to Ground",
"symbol": "VMAX_IOV",
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"conditions": "",
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{
"name": "Maximum I/O voltage to Ground (EXTVBUS, CPEN_N)",
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{
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{
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{
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"min": null,
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{
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"typ": null,
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"conditions": "",
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{
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{
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{
"name": "VDDIO to GND",
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"typ": null,
"max": 3.6,
"conditions": "",
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},
{
"name": "Input Voltage on Digital Pins (RESETB, STP, DIR, NXT, DATA[7:0])",
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"min": 0,
"typ": null,
"max": null,
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{
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{
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"kind": "recommended_operating",
"unit": "V",
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{
"name": "VBUS to GND",
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"typ": null,
"max": 5.5,
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{
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"min": -40,
"typ": null,
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{
"name": "Synchronous Mode Current (Default Configuration)",
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"min": 24,
"typ": 27,
"max": 29,
"conditions": "USB Idle",
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},
{
"name": "Synchronous Mode Current (Default Configuration)",
"symbol": "IVIO(SYNC)",
"kind": "electrical",
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"min": 2,
"typ": 3,
"max": 7,
"conditions": "",
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{
"name": "Synchronous Mode Current (HS USB operation)",
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"unit": "mA",
"min": 33,
"typ": 35,
"max": 37,
"conditions": "Active USB Transfer",
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},
{
"name": "Synchronous Mode Current (HS USB operation)",
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"min": 5,
"typ": 6,
"max": 14,
"conditions": "",
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{
"name": "Synchronous Mode Current (FS/LS USB operation)",
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"typ": 28.5,
"max": 30,
"conditions": "Active USB Transfer",
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{
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"min": 4,
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{
"name": "Low Power Mode current",
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"unit": "uA",
"min": 29,
"typ": 32,
"max": 83,
"conditions": "VVBAT = 4.2V; VVDDIO = 1.8V",
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{
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"typ": 1,
"max": 12,
"conditions": "RESETB = 0; VVBAT = 4.2V; VVDDIO = 1.8V",
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"source": "datasheet"
},
{
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"typ": 0,
"max": 7,
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"source": "datasheet"
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{
"name": "Suspend Recovery Time",
"symbol": "TSTART",
"kind": "timing",
"unit": "ms",
"min": 1,
"typ": 1.1,
"max": 1.32,
"conditions": "LPM Enable = 0",
"source_page": 10,
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},
{
"name": "PHY Preparation Time (60MHz REFCLK)",
"symbol": "TPREP",
"kind": "timing",
"unit": "ms",
"min": 1,
"typ": 1.1,
"max": 1.32,
"conditions": "LPM Enable = 0",
"source_page": 10,
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},
{
"name": "CLKOUT Duty Cycle",
"symbol": "DCCLKOUT",
"kind": "electrical",
"unit": "%",
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