component
USB4604-1080HN
Public Made by Adomby adom
Microchip Tech USB ICs, QFN-48-EP(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "usb4604-1080hn",
"title": "USB4604-1080HN",
"brief": "Microchip Tech USB ICs, QFN-48-EP(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"communication interface chip-uart-485-232",
"usb4604-1080hn",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "USB4604-1080HN",
"manufacturer": "Microchip Tech",
"package": "QFN-48-EP(7x7)",
"pin_count": 49,
"category": "Communication Interface Chip/UART/485/232",
"subcategory": "USB ICs",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/fe674717d0059b90aca004d43843e5e1.pdf",
"parts": {
"symbol": "usb4604-1080hn.kicad_sym",
"footprint": "usb4604-1080hn.kicad_mod",
"model_3d": "usb4604-1080hn-hero.glb",
"model_3d_plain": "usb4604-1080hn-etched.glb",
"model_3d_step": "usb4604-1080hn-etched.step",
"model_3d_step_plain": "usb4604-1080hn.step",
"lbr": "usb4604-1080hn.lbr"
},
"distributor_links": {
"lcsc": "C633602",
"digikey": "USB4604-1080HN-ND",
"mouser": "579-USB4604-1080HN"
},
"distributor_check": {
"checked_at": "2026-10-30T18:22:55Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "USB4604-1080HN-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "579-USB4604-1080HN",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "VBAT",
"type": "power_in",
"description": "Battery power supply input; a 4.7 µF (<1 Ω ESR) capacitor to ground is required for internal 3.3V regulator stability."
},
{
"number": "2",
"name": "NC",
"type": "unconnected",
"description": "No connect; must be left floating for normal device operation."
},
{
"number": "3",
"name": "SWAP_USBDN1_DM/PRT_DIS_M1",
"type": "bidirectional",
"description": "Downstream USB Port 1 D- data signal (swappable with upstream Port 0); PRT_DIS_M1 and PRT_DIS_P1 must both be tied to VDD33 at reset to disable Port 1."
},
{
"number": "4",
"name": "SWAP_USBDN1_DP/PRT_DIS_P1",
"type": "bidirectional",
"description": "Downstream USB Port 1 D+ data signal (swappable with upstream Port 0); PRT_DIS_P1 and PRT_DIS_M1 must both be tied to VDD33 at reset to disable Port 1."
},
{
"number": "5",
"name": "USBDN2_DM/PRT_DIS_M2",
"type": "bidirectional",
"description": "Downstream USB Port 2 D- data signal; PRT_DIS_M2 and PRT_DIS_P2 must both be tied to VDD33 at reset to disable Port 2."
},
{
"number": "6",
"name": "USBDN2_DP/PRT_DIS_P2",
"type": "bidirectional",
"description": "Downstream USB Port 2 D+ data signal; PRT_DIS_P2 and PRT_DIS_M2 must both be tied to VDD33 at reset to disable Port 2."
},
{
"number": "7",
"name": "NC",
"type": "unconnected",
"description": "No connect; must be left floating for normal device operation."
},
{
"number": "8",
"name": "USBDN3_DM/PRT_DIS_M3",
"type": "bidirectional",
"description": "Downstream USB Port 3 D- data signal; PRT_DIS_M3 and PRT_DIS_P3 must both be tied to VDD33 at reset to disable Port 3."
},
{
"number": "9",
"name": "USBDN3_DP/PRT_DIS_P3",
"type": "bidirectional",
"description": "Downstream USB Port 3 D+ data signal; PRT_DIS_P3 and PRT_DIS_M3 must both be tied to VDD33 at reset to disable Port 3."
},
{
"number": "10",
"name": "USBDN4_DM/PRT_DIS_M4",
"type": "bidirectional",
"description": "Downstream USB Port 4 D- data signal; PRT_DIS_M4 and PRT_DIS_P4 must both be tied to VDD33 at reset to disable Port 4."
},
{
"number": "11",
"name": "USBDN4_DP/PRT_DIS_P4",
"type": "bidirectional",
"description": "Downstream USB Port 4 D+ data signal; PRT_DIS_P4 and PRT_DIS_M4 must both be tied to VDD33 at reset to disable Port 4."
},
{
"number": "12",
"name": "VDDA33",
"type": "power_in",
"description": "+3.3V analog power supply; a 1.0 µF (<1 Ω ESR) capacitor to ground is required for regulator stability."
},
{
"number": "13",
"name": "SOF",
"type": "output",
"description": "Outputs an 8 kHz clock synchronized with the USB Host SOF, controlled by the SOF_ENABLE bit in the UTIL_CONFIG1 register."
},
{
"number": "14",
"name": "SUSPEND",
"type": "output",
"description": "Indicates the entire hub has entered USB suspend so VBUS current consumption should be reduced per the USB specification; must be enabled via the Protouch configuration tool."
},
{
"number": "15",
"name": "PRTPWR1/PRTCTL1",
"type": "bidirectional",
"description": "Port 1 power enable output (0 = power disabled, 1 = power enabled); when configured as PRTCTL1 it also serves as the Port 1 over-current sense input OCS1_N."
},
{
"number": "16",
"name": "OCS1_N",
"type": "input",
"description": "Active-low over-current sense input from an external current monitor indicating an over-current condition on USB Port 1; internal pull-up."
},
{
"number": "17",
"name": "VDDCR12",
"type": "power_in",
"description": "+1.2V core power supply; in single-supply or dual-supply configurations where 1.2V is not used, a 1.0 µF (<1 Ω ESR) capacitor to ground is required for regulator stability."
},
{
"number": "18",
"name": "VDD33",
"type": "power_in",
"description": "+3.3V power supply that must be connected to VDDA33."
},
{
"number": "19",
"name": "PRTPWR2/PRTCTL2",
"type": "bidirectional",
"description": "Port 2 power enable output (0 = power disabled, 1 = power enabled); when configured as PRTCTL2 it also serves as the Port 2 over-current sense input OCS2_N."
},
{
"number": "20",
"name": "OCS2_N",
"type": "input",
"description": "Active-low over-current sense input from an external current monitor indicating an over-current condition on USB Port 2; internal pull-up."
},
{
"number": "21",
"name": "PRTPWR3/PRTCTL3",
"type": "bidirectional",
"description": "Port 3 power enable output (0 = power disabled, 1 = power enabled); when configured as PRTCTL3 it also serves as the Port 3 over-current sense input OCS3_N."
},
{
"number": "22",
"name": "NC",
"type": "unconnected",
"description": "No connect; must be left floating for normal device operation."
},
{
"number": "23",
"name": "NC",
"type": "unconnected",
"description": "No connect; must be left floating for normal device operation."
},
{
"number": "24",
"name": "SPI_DI",
"type": "input",
"description": "SPI data input; internal pull-down enabled."
},
{
"number": "25",
"name": "SPI_CE_N",
"type": "output",
"description": "Active-low SPI chip enable output; driven high in powerdown states if SPI is enabled."
},
{
"number": "26",
"name": "SPI_DO/SPI_SPD_SEL",
"type": "bidirectional",
"description": "SPI data output (12 mA sink/source); the SPI_SPD_SEL configuration strap selects SPI speed at reset (0 = 30 MHz default, 1 = 60 MHz)."
},
{
"number": "27",
"name": "SPI_CLK",
"type": "output",
"description": "SPI clock output (12 mA sink/source)."
},
{
"number": "28",
"name": "UART_RX/OCS3_N",
"type": "input",
"description": "Internal UART receive input at 3.3V (RS232 operation requires an external 12V translator); also serves as active-low Port 3 over-current sense input OCS3_N."
},
{
"number": "29",
"name": "PRTPWR4/PRTCTL4",
"type": "bidirectional",
"description": "Port 4 power enable output (0 = power disabled, 1 = power enabled); when configured as PRTCTL4 it also serves as the Port 4 over-current sense input OCS4_N."
},
{
"number": "30",
"name": "UART_TX/OCS4_N",
"type": "bidirectional",
"description": "Internal UART transmit output at 3.3V (RS232 operation requires an external 12V driver); also serves as active-low Port 4 over-current sense input OCS4_N."
},
{
"number": "31",
"name": "SDA/SMBDATA",
"type": "bidirectional",
"description": "I2C bidirectional serial data (open-drain, 8 mA sink); also serves as SMBus bidirectional serial data."
},
{
"number": "32",
"name": "VDD33",
"type": "power_in",
"description": "+3.3V power supply that must be connected to VDDA33."
},
{
"number": "33",
"name": "SCL/SMBCLK",
"type": "input",
"description": "I2C serial clock input; also serves as SMBus serial clock input."
},
{
"number": "34",
"name": "NC",
"type": "unconnected",
"description": "No connect; must be left floating for normal device operation."
},
{
"number": "35",
"name": "RESET_N",
"type": "input",
"description": "Active-low system reset input; the active-low pulse must be at least 5 µs wide."
},
{
"number": "36",
"name": "VBUS_DET",
"type": "input",
"description": "Detects upstream bus power; on detachable hubs it must connect to upstream VBUS through a 50k/100k resistor divider to provide 3.3V."
},
{
"number": "37",
"name": "VDDA33",
"type": "power_in",
"description": "+3.3V analog power supply; a 1.0 µF (<1 Ω ESR) capacitor to ground is required for regulator stability."
},
{
"number": "38",
"name": "VDD12",
"type": "power_in",
"description": "+1.2V HSIC power supply input; for HSIC operation it must be tied to VDDCR12."
},
{
"number": "39",
"name": "FLEX_HSIC_UP_STROBE",
"type": "bidirectional",
"description": "Upstream HSIC Port 0 STROBE signal (can be optionally swapped with downstream Port 1 signals)."
},
{
"number": "40",
"name": "FLEX_USBUP_DM/PRT_DIS_M0",
"type": "bidirectional",
"description": "Upstream USB Port 0 D- data signal (can be optionally swapped with downstream Port 1); PRT_DIS_M0 and PRT_DIS_P0 must both be tied to VDD33 at reset to place Port 0 into HSIC mode."
},
{
"number": "41",
"name": "FLEX_USBUP_DP/PRT_DIS_P0",
"type": "bidirectional",
"description": "Upstream USB Port 0 D+ data signal (can be optionally swapped with downstream Port 1); PRT_DIS_P0 and PRT_DIS_M0 must both be tied to VDD33 at reset to place Port 0 into HSIC mode."
},
{
"number": "42",
"name": "FLEX_HSIC_UP_DATA",
"type": "bidirectional",
"description": "Upstream HSIC Port 0 DATA signal (can be optionally swapped with downstream Port 1 signals)."
},
{
"number": "43",
"name": "XTAL2",
"type": "output",
"description": "External 24 MHz crystal output; should be left unconnected when XTAL1/REFCLK is driven by a single-ended clock oscillator."
},
{
"number": "44",
"name": "XTAL1/REFCLK",
"type": "input",
"description": "External 24 MHz crystal input, or reference clock input that may be driven by a single-ended clock oscillator."
},
{
"number": "45",
"name": "NC",
"type": "unconnected",
"description": "No connect; must be left floating for normal device operation."
},
{
"number": "46",
"name": "RBIAS",
"type": "passive",
"description": "A 12.0k (+/- 1%) resistor attached from ground to this pin sets the transceiver's internal bias settings."
},
{
"number": "47",
"name": "VDDCOREREG",
"type": "power_in",
"description": "+1.8-3.3V core power supply input to the internal +1.2V regulator; may be tied to VDD33 for single-supply operation when VBAT equals +3.3V."
},
{
"number": "48",
"name": "VDDA33",
"type": "power_in",
"description": "+3.3V analog power supply; a 1.0 µF (<1 Ω ESR) capacitor to ground is required for regulator stability."
},
{
"number": "49",
"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 exposed thermal pad on the package bottom is common ground VSS (Figure 3-1, Table 3-1) but the d; Pin names for pins 3 and 4 differ between the pin assignment table (USBDN1_DM/PRT_DIS_M1, USBDN1_DP/; Multi-function pins are typed by their combined function, e.g. PRTPWR/PRTCTL and SPI_DO/SPI_SPD_SEL ",
"exposed pad 49 added from the footprint",
"14/49 pins cited to the wrong page (name found elsewhere): ['16:OCS1_N@p11', '20:OCS2_N@p11', '25:SPI_CE_N@p11', '26:SPI_DO/SPI_SPD_SEL@p11']"
],
"pages_sent": 23,
"cost_usd": 0.1482,
"at": "2026-10-30T18:22:41"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/fe674717d0059b90aca004d43843e5e1.pdf",
"pages": 55,
"sha256": "c71c99d8530091c2",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 49,
"described": 49,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "usb4604-1080hn.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
7,
7,
0.77
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "f2b38b0b4bf967c77e683e8d4599608b9f0503055ec535b93c4ebb5d0163e916",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "usb4604-1080hn-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
7,
7,
0.77
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "a1050f6c1e69a46bb2ad8d4cdf26ce15696786f682f3d49e2ff976f5a325702b",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Microchip Tech",
"Package": "QFN-48-EP(7x7)",
"Category": "Communication Interface Chip/UART/485/232",
"Pins": "49"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "c71c99d8530091c2c7f0a0ea68e4b3d1ea176af3138d1a9e177961c3c24606f3",
"rows": [
{
"name": "VBAT Supply Voltage",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": 0,
"typ": null,
"max": 5.5,
"conditions": "Note 9-1",
"source_page": 39,
"source": "datasheet"
},
{
"name": "VDDCOREREG Supply Voltage",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": 0,
"typ": null,
"max": 3.6,
"conditions": "Note 9-1",
"source_page": 39,
"source": "datasheet"
},
{
"name": "Positive voltage on input signal pins, with respect to ground",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 3.6,
"conditions": "Note 9-2",
"source_page": 39,
"source": "datasheet"
},
{
"name": "Negative voltage on input signal pins, with respect to ground",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.5,
"typ": null,
"max": null,
"conditions": "Note 9-3",
"source_page": 39,
"source": "datasheet"
},
{
"name": "Positive voltage on USB DP/DM signals, with respect to ground",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 5.5,
"conditions": "Note 9-4",
"source_page": 39,
"source": "datasheet"
},
{
"name": "Storage Temperature",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 39,
"source": "datasheet"
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{
"name": "VBAT Supply Voltage",
"symbol": "",
"kind": "recommended_operating",
"unit": "V",
"min": 3,
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"conditions": "",
"source_page": 40,
"source": "datasheet"
},
{
"name": "VDDCOREREG Supply Voltage",
"symbol": "",
"kind": "recommended_operating",
"unit": "V",
"min": 1.6,
"typ": null,
"max": 2,
"conditions": "Note 9-5: connected to external +1.8V power supply",
"source_page": 40,
"source": "datasheet"
},
{
"name": "VDDCOREREG Supply Voltage",
"symbol": "",
"kind": "recommended_operating",
"unit": "V",
"min": 3,
"typ": null,
"max": 3.6,
"conditions": "Note 9-5: connected to VDD33",
"source_page": 40,
"source": "datasheet"
},
{
"name": "Power Supply Rise Time (tRT)",
"symbol": "tRT(max)",
"kind": "timing",
"unit": "mS",
"min": null,
"typ": null,
"max": 10,
"conditions": "Note 9-6: RESET_N asserted at power-on",
"source_page": 40,
"source": "datasheet"
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{
"name": "Power Supply Rise Time (tRT)",
"symbol": "tRT(max)",
"kind": "timing",
"unit": "mS",
"min": null,
"typ": null,
"max": 1,
"conditions": "Note 9-6: RESET_N not used at power-on (tied high)",
"source_page": 40,
"source": "datasheet"
},
{
"name": "Ambient Operating Temperature in Still Air (TA)",
"symbol": "TA",
"kind": "recommended_operating",
"unit": "°C",
"min": 0,
"typ": null,
"max": 70,
"conditions": "Note 9-7: commercial version",
"source_page": 40,
"source": "datasheet"
},
{
"name": "Operational/unconfigured current, USB upstream: HS host / 1 HS device",
"symbol": "",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 30,
"max": 40,
"conditions": "USB upstream; VBAT supply column",
"source_page": 41,
"source": "datasheet"
},
{
"name": "Operational/unconfigured current, USB upstream: HS host / 1 HS device",
"symbol": "",
"kind": "electrical",
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"min": null,
"typ": 40,
"max": 45,
"conditions": "USB upstream; VDDCOREREG supply column",
"source_page": 41,
"source": "datasheet"
},
{
"name": "Operational/unconfigured current, USB upstream: HS host / 2 HS devices",
"symbol": "",
"kind": "electrical",
"unit": "mA",
"min": null,
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