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TUSB8044ARGCR
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Texas Instruments USB Converters, VQFN-64-EP(9x9). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+102@@ -0,0 +1,102 @@+# TUSB8044ARGCR++**Texas Instruments** · USB Converters · VQFN-64-EP(9x9)++TUSB8044ARGCR from Texas Instruments, in a VQFN-64-EP(9x9). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | USB_DP_DN1 | bidirectional | USB high-speed differential transceiver (positive) for downstream port 1. |+| 2 | USB_DM_DN1 | bidirectional | USB high-speed differential transceiver (negative) for downstream port 1. |+| 3 | USB_SSTXP_DN1 | output | USB SuperSpeed transmitter differential pair (positive) for downstream port 1. |+| 4 | USB_SSTXM_DN1 | output | USB SuperSpeed transmitter differential pair (negative) for downstream port 1. |+| 5 | VDD | power_in | 1.1-V power rail; recommended 0.99 V to 1.26 V, absolute maximum 1.4 V. |+| 6 | USB_SSRXP_DN1 | input | USB SuperSpeed receiver differential pair (positive) for downstream port 1. |+| 7 | USB_SSRXM_DN1 | input | USB SuperSpeed receiver differential pair (negative) for downstream port 1. |+| 8 | VDD | power_in | 1.1-V power rail; recommended 0.99 V to 1.26 V, absolute maximum 1.4 V. |+| 9 | USB_DP_DN2 | bidirectional | USB high-speed differential transceiver (positive) for downstream port 2. |+| 10 | USB_DM_DN2 | bidirectional | USB high-speed differential transceiver (negative) for downstream port 2. |+| 11 | USB_SSTXP_DN2 | output | USB SuperSpeed transmitter differential pair (positive) for downstream port 2. |+| 12 | USB_SSTXM_DN2 | output | USB SuperSpeed transmitter differential pair (negative) for downstream port 2. |+| 13 | VDD | power_in | 1.1-V power rail; recommended 0.99 V to 1.26 V, absolute maximum 1.4 V. |+| 14 | USB_SSRXP_DN2 | input | USB SuperSpeed receiver differential pair (positive) for downstream port 2. |+| 15 | USB_SSRXM_DN2 | input | USB SuperSpeed receiver differential pair (negative) for downstream port 2. |+| 16 | VDD33 | power_in | 3.3-V power rail; recommended 3.0 V to 3.6 V, absolute maximum 3.8 V. |+| 17 | USB_DP_DN3 | bidirectional | USB high-speed differential transceiver (positive) for downstream port 3. |+| 18 | USB_DM_DN3 | bidirectional | USB high-speed differential transceiver (negative) for downstream port 3. |+| 19 | USB_SSTXP_DN3 | output | USB SuperSpeed transmitter differential pair (positive) for downstream port 3. |+| 20 | USB_SSTXM_DN3 | output | USB SuperSpeed transmitter differential pair (negative) for downstream port 3. |+| 21 | VDD | power_in | 1.1-V power rail; recommended 0.99 V to 1.26 V, absolute maximum 1.4 V. |+| 22 | USB_SSRXP_DN3 | input | USB SuperSpeed receiver differential pair (positive) for downstream port 3. |+| 23 | USB_SSRXM_DN3 | input | USB SuperSpeed receiver differential pair (negative) for downstream port 3. |+| 24 | USB_DP_DN4 | bidirectional | USB high-speed differential transceiver (positive) for downstream port 4. |+| 25 | USB_DM_DN4 | bidirectional | USB high-speed differential transceiver (negative) for downstream port 4. |+| 26 | USB_SSTXP_DN4 | output | USB SuperSpeed transmitter differential pair (positive) for downstream port 4. |+| 27 | USB_SSTXM_DN4 | output | USB SuperSpeed transmitter differential pair (negative) for downstream port 4. |+| 28 | VDD | power_in | 1.1-V power rail; recommended 0.99 V to 1.26 V, absolute maximum 1.4 V. |+| 29 | USB_SSRXP_DN4 | input | USB SuperSpeed receiver differential pair (positive) for downstream port 4. |+| 30 | USB_SSRXM_DN4 | input | USB SuperSpeed receiver differential pair (negative) for downstream port 4. |+| 31 | VDD | power_in | 1.1-V power rail; recommended 0.99 V to 1.26 V, absolute maximum 1.4 V. |+| 32 | PWRCTL4/BATEN4 | bidirectional | Port 4 power-on control for the downstream power switch and battery charging enable; the level sampled at reset de-assertion sets battery charging support (0 = not supported, 1 = supported), internal pull-down, may be left unconnected if power management is not implemented. |+| 33 | PWRCTL3/BATEN3 | bidirectional | Port 3 power-on control for the downstream power switch and battery charging enable; the level sampled at reset de-assertion sets battery charging support (0 = not supported, 1 = supported), internal pull-down, may be left unconnected if power management is not implemented. |+| 34 | VDD33 | power_in | 3.3-V power rail; recommended 3.0 V to 3.6 V, absolute maximum 3.8 V. |+| 35 | PWRCTL2/BATEN2 | bidirectional | Port 2 power-on control for the downstream power switch and battery charging enable; the level sampled at reset de-assertion sets battery charging support (0 = not supported, 1 = supported), internal pull-down, may be left unconnected if power management is not implemented. |+| 36 | PWRCTL1/BATEN1 | bidirectional | Port 1 power-on control for the downstream power switch and battery charging enable; the level sampled at reset de-assertion sets battery charging support (0 = not supported, 1 = supported), internal pull-down, may be left unconnected if power management is not implemented. |+| 37 | SDA/SMBDAT | bidirectional | I2C data (when SMBUSz = 1, serial data for an I2C EEPROM) or SMBus data (when SMBUSz = 0, for an SMBus host); internal pull-down, can be left unconnected if the external interface is not implemented. |+| 38 | SCL/SMBCLK | bidirectional | I2C clock (when SMBUSz = 1, serial clock for an I2C EEPROM) or SMBus clock (when SMBUSz = 0, for an SMBus host); internal pull-down, can be left unconnected if the external interface is not implemented. |+| 39 | SMBUSz,SS_SUSPEND | bidirectional | Sampled at reset de-assertion to select I2C mode (1) or SMBus mode (0); after reset, indicates SuperSpeed upstream suspend status (1 = suspended) when enabled through stsOutputEn; internal pull-up, can be left unconnected if the external interface is not implemented. |+| 40 | BBbmConfigured0/FULLAUTOz/FULLPWRMGMTz/SS_UP | bidirectional | In I2C mode, sets bmConfigured[0] of the Billboard Capability descriptor together with pin 45; in SMBus mode, sampled or used for FullAutoEn/power switch control, or as SS_UP upstream SuperSpeed connection indicator when stsOutputEn is set (1 = SuperSpeed upstream connected); internal pull-down. |+| 41 | PWRCTL_POL | bidirectional | Sampled at reset de-assertion to set the polarity of PWRCTL[4:1] (0 = active low, 1 = active high); internal pull-up. |+| 42 | BBEN/GANGED,HS_UP | bidirectional | In I2C mode, Billboard enable (high presents the billboard to the host); in SMBus mode, sampled at reset to select individual (0) or ganged (1) port power control, or as HS_UP upstream high-speed connection indicator when stsOutputEn is set; internal pull-down. |+| 43 | OVERCUR4z | input | Port 4 over-current detection input from the downstream power switch (0 = over-current has occurred, 1 = no over-current); internal pull-up, may be left unconnected when another OVERCURz pin is used in ganged mode. |+| 44 | OVERCUR3z | input | Port 3 over-current detection input from the downstream power switch (0 = over-current has occurred, 1 = no over-current); internal pull-up, may be left unconnected when another OVERCURz pin is used in ganged mode. |+| 45 | BBbmConfigured1/AUTOENz/HS_SUSPEND | bidirectional | In I2C mode, sets bmConfigured[1] of the Billboard Capability descriptor together with pin 40; in SMBus mode, sampled to set autoEnz in the Battery Charging Support register, or as HS_SUSPEND upstream high-speed suspend indicator when stsOutputEn is set (1 = suspended); internal pull-down. |+| 46 | OVERCUR1z | input | Port 1 over-current detection input from the downstream power switch (0 = over-current has occurred, 1 = no over-current); internal pull-up, may be left unconnected when another OVERCURz pin is used in ganged mode. |+| 47 | OVERCUR2z | input | Port 2 over-current detection input from the downstream power switch (0 = over-current has occurred, 1 = no over-current); internal pull-up, may be left unconnected when another OVERCURz pin is used in ganged mode. |+| 48 | USB_VBUS | input | Upstream port VBUS detection input, which requires a voltage divider: connect to VBUS through 90.9 kΩ ±1% and to ground through 10 kΩ ±1%; voltage range 0 to 1.155 V at this terminal. |+| 49 | TEST | input | Reserved for factory test; requires an external pull-down resistor to ground on the PCB (10 kΩ or stronger recommended) for normal operation. |+| 50 | GRSTz | input | Global power reset; asserting it returns all internal registers to default states and the device is completely nonfunctional while asserted; internal pull-up. |+| 51 | VDD | power_in | 1.1-V power rail; recommended 0.99 V to 1.26 V, absolute maximum 1.4 V. |+| 52 | VDD33 | power_in | 3.3-V power rail; recommended 3.0 V to 3.6 V, absolute maximum 3.8 V. |+| 53 | USB_DP_UP | bidirectional | USB high-speed differential transceiver (positive) for the upstream port. |+| 54 | USB_DM_UP | bidirectional | USB high-speed differential transceiver (negative) for the upstream port. |+| 55 | USB_SSTXP_UP | output | USB SuperSpeed transmitter differential pair (positive) for the upstream port. |+| 56 | USB_SSTXM_UP | output | USB SuperSpeed transmitter differential pair (negative) for the upstream port. |+| 57 | VDD | power_in | 1.1-V power rail; recommended 0.99 V to 1.26 V, absolute maximum 1.4 V. |+| 58 | USB_SSRXP_UP | input | USB SuperSpeed receiver differential pair (positive) for the upstream port. |+| 59 | USB_SSRXM_UP | input | USB SuperSpeed receiver differential pair (negative) for the upstream port. |+| 60 | NC | unconnected | No connect; leave floating. |+| 61 | XO | output | Crystal output of the internal oscillator; may be left unconnected if XI is driven by an external oscillator, and a 1-MΩ feedback resistor is required between XI and XO when using a crystal. |+| 62 | XI | input | Crystal input for the internal oscillator, which may alternately be driven by an external oscillator; a 1-MΩ feedback resistor is required between XI and XO when using a crystal. |+| 63 | VDD33 | power_in | 3.3-V power rail; recommended 3.0 V to 3.6 V, absolute maximum 3.8 V. |+| 64 | USB_R1 | input | Precision resistor reference; a 9.53 kΩ ±1% resistor should be connected between USB_R1 and GND. |+| 65 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VQFN-64-EP(9x9) |+| Category | Interface |+| Pins | 65 |++## CAD (KiCad official)++- Symbol: `TUSB8044ARGCR`+- Footprint: `Package_DFN_QFN:QFN-64-1EP_9x9mm_P0.5mm_EP6x6mm`+- 3D model: VQFN-64-EP(9x9) (KiCad packages3D, STEP)+- 3D model files: `tusb8044argcr-etched.step` / `tusb8044argcr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tusb8044argcr.step` / `tusb8044argcr.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tusb8044a) (69 pp, sha256 `57142228db173b28`, retrieved 2026-10-08, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/tusb8044argcr-datasheet.pdf)
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Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "interface",+ "tusb8044argcr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "tusb8044argcr.kicad_sym",+ "tusb8044argcr.kicad_mod",+ "tusb8044argcr.glb",+ "tusb8044argcr.step",+ "tusb8044argcr.lbr",+ "docs/hero.png",+ "docs/tusb8044argcr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "tusb8044argcr-hero.glb",+ "tusb8044argcr-hero.overlay.json"+ ],+ "component": {+ "mpn": "TUSB8044ARGCR",+ "manufacturer": "Texas Instruments",+ "package": "VQFN-64-EP(9x9)",+ "pin_count": 65,+ "category": "Interface",+ "subcategory": "USB Converters",+ "datasheet": "https://www.ti.com/cn/lit/gpn/tusb8044a",+ "parts": {+ "symbol": "tusb8044argcr.kicad_sym",+ "footprint": "tusb8044argcr.kicad_mod",+ "model_3d": "tusb8044argcr-hero.glb",+ "model_3d_plain": "tusb8044argcr.glb",+ "model_3d_step": "tusb8044argcr-etched.step",+ "model_3d_step_plain": "tusb8044argcr.step",+ "lbr": "tusb8044argcr.lbr"+ },+ "distributor_links": {+ "lcsc": "C2678041",+ "digikey": "296-53620-2-ND",+ "mouser": "595-TUSB8044ARGCR"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T19:33:16Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-53620-2-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-TUSB8044ARGCR",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "USB_DP_DN1",+ "type": "bidirectional",+ "description": "USB high-speed differential transceiver (positive) for downstream port 1."+ },+ {+ "number": "2",+ "name": "USB_DM_DN1",+ "type": "bidirectional",+ "description": "USB high-speed differential transceiver (negative) for downstream port 1."+ },+ {+ "number": "3",+ "name": "USB_SSTXP_DN1",+ "type": "output",+ "description": "USB SuperSpeed transmitter differential pair (positive) for downstream port 1."+ },+ {+ "number": "4",+ "name": "USB_SSTXM_DN1",+ "type": "output",+ "description": "USB SuperSpeed transmitter differential pair (negative) for downstream port 1."+ },+ {+ "number": "5",+ "name": "VDD",+ "type": "power_in",+ "description": "1.1-V power rail; recommended 0.99 V to 1.26 V, absolute maximum 1.4 V."+ },+ {+ "number": "6",+ "name": "USB_SSRXP_DN1",+ "type": "input",+ "description": "USB SuperSpeed receiver differential pair (positive) for downstream port 1."+ },+ {+ "number": "7",+ "name": "USB_SSRXM_DN1",+ "type": "input",+ "description": "USB SuperSpeed receiver differential pair (negative) for downstream port 1."+ },+ {+ "number": "8",+ "name": "VDD",+ "type": "power_in",+ "description": "1.1-V power rail; recommended 0.99 V to 1.26 V, absolute maximum 1.4 V."+ },+ {+ "number": "9",+ "name": "USB_DP_DN2",+ "type": "bidirectional",+ "description": "USB high-speed differential transceiver (positive) for downstream port 2."+ },+ {+ "number": "10",+ "name": "USB_DM_DN2",+ "type": "bidirectional",+ "description": "USB high-speed differential transceiver (negative) for downstream port 2."+ },+ {+ "number": "11",+ "name": "USB_SSTXP_DN2",+ "type": "output",+ "description": "USB SuperSpeed transmitter differential pair (positive) for downstream port 2."+ },+ {+ "number": "12",+ "name": "USB_SSTXM_DN2",+ "type": "output",+ "description": "USB SuperSpeed transmitter differential pair (negative) for downstream port 2."+ },+ {+ "number": "13",+ "name": "VDD",+ "type": "power_in",+ "description": "1.1-V power rail; recommended 0.99 V to 1.26 V, absolute maximum 1.4 V."+ },+ {+ "number": "14",+ "name": "USB_SSRXP_DN2",+ "type": "input",+ "description": "USB SuperSpeed receiver differential pair (positive) for downstream port 2."+ },+ {+ "number": "15",+ "name": "USB_SSRXM_DN2",+ "type": "input",+ "description": "USB SuperSpeed receiver differential pair (negative) for downstream port 2."+ },+ {+ "number": "16",+ "name": "VDD33",+ "type": "power_in",+ "description": "3.3-V power rail; recommended 3.0 V to 3.6 V, absolute maximum 3.8 V."+ },+ {+ "number": "17",+ "name": "USB_DP_DN3",+ "type": "bidirectional",+ "description": "USB high-speed differential transceiver (positive) for downstream port 3."+ },+ {+ "number": "18",+ "name": "USB_DM_DN3",+ "type": "bidirectional",+ "description": "USB high-speed differential transceiver (negative) for downstream port 3."+ },+ {+ "number": "19",+ "name": "USB_SSTXP_DN3",+ "type": "output",+ "description": "USB SuperSpeed transmitter differential pair (positive) for downstream port 3."+ },+ {+ "number": "20",+ "name": "USB_SSTXM_DN3",+ "type": "output",+ "description": "USB SuperSpeed transmitter differential pair (negative) for downstream port 3."+ },+ {+ "number": "21",+ "name": "VDD",+ "type": "power_in",+ "description": "1.1-V power rail; recommended 0.99 V to 1.26 V, absolute maximum 1.4 V."+ },+ {+ "number": "22",+ "name": "USB_SSRXP_DN3",+ "type": "input",+ "description": "USB SuperSpeed receiver differential pair (positive) for downstream port 3."+ },+ {+ "number": "23",+ "name": "USB_SSRXM_DN3",+ "type": "input",+ "description": "USB SuperSpeed receiver differential pair (negative) for downstream port 3."+ },+ {+ "number": "24",+ "name": "USB_DP_DN4",+ "type": "bidirectional",+ "description": "USB high-speed differential transceiver (positive) for downstream port 4."+ },+ {+ "number": "25",+ "name": "USB_DM_DN4",+ "type": "bidirectional",+ "description": "USB high-speed differential transceiver (negative) for downstream port 4."+ },+ {+ "number": "26",+ "name": "USB_SSTXP_DN4",+ "type": "output",+ "description": "USB SuperSpeed transmitter differential pair (positive) for downstream port 4."+ },+ {+ "number": "27",+ "name": "USB_SSTXM_DN4",+ "type": "output",+ "description": "USB SuperSpeed transmitter differential pair (negative) for downstream port 4."+ },+ {+ "number": "28",+ "name": "VDD",+ "type": "power_in",+ "description": "1.1-V power rail; recommended 0.99 V to 1.26 V, absolute maximum 1.4 V."+ },+ {+ "number": "29",+ "name": "USB_SSRXP_DN4",+ "type": "input",+ "description": "USB SuperSpeed receiver differential pair (positive) for downstream port 4."+ },+ {+ "number": "30",+ "name": "USB_SSRXM_DN4",+ "type": "input",+ "description": "USB SuperSpeed receiver differential pair (negative) for downstream port 4."+ },+ {+ "number": "31",+ "name": "VDD",+ "type": "power_in",+ "description": "1.1-V power rail; recommended 0.99 V to 1.26 V, absolute maximum 1.4 V."+ },+ {+ "number": "32",+ "name": "PWRCTL4/BATEN4",+ "type": "bidirectional",+ "description": "Port 4 power-on control for the downstream power switch and battery charging enable; the level sampled at reset de-assertion sets battery charging support (0 = not supported, 1 = supported), internal pull-down, may be left unconnected if power management is not implemented."+ },+ {+ "number": "33",+ "name": "PWRCTL3/BATEN3",+ "type": "bidirectional",+ "description": "Port 3 power-on control for the downstream power switch and battery charging enable; the level sampled at reset de-assertion sets battery charging support (0 = not supported, 1 = supported), internal pull-down, may be left unconnected if power management is not implemented."+ },+ {+ "number": "34",+ "name": "VDD33",+ "type": "power_in",+ "description": "3.3-V power rail; recommended 3.0 V to 3.6 V, absolute maximum 3.8 V."+ },+ {+ "number": "35",+ "name": "PWRCTL2/BATEN2",+ "type": "bidirectional",+ "description": "Port 2 power-on control for the downstream power switch and battery charging enable; the level sampled at reset de-assertion sets battery charging support (0 = not supported, 1 = supported), internal pull-down, may be left unconnected if power management is not implemented."+ },+ {+ "number": "36",+ "name": "PWRCTL1/BATEN1",+ "type": "bidirectional",+ "description": "Port 1 power-on control for the downstream power switch and battery charging enable; the level sampled at reset de-assertion sets battery charging support (0 = not supported, 1 = supported), internal pull-down, may be left unconnected if power management is not implemented."+ },+ {+ "number": "37",+ "name": "SDA/SMBDAT",+ "type": "bidirectional",+ "description": "I2C data (when SMBUSz = 1, serial data for an I2C EEPROM) or SMBus data (when SMBUSz = 0, for an SMBus host); internal pull-down, can be left unconnected if the external interface is not implemented."+ },+ {+ "number": "38",+ "name": "SCL/SMBCLK",+ "type": "bidirectional",+ "description": "I2C clock (when SMBUSz = 1, serial clock for an I2C EEPROM) or SMBus clock (when SMBUSz = 0, for an SMBus host); internal pull-down, can be left unconnected if the external interface is not implemented."+ },+ {+ "number": "39",+ "name": "SMBUSz,SS_SUSPEND",+ "type": "bidirectional",+ "description": "Sampled at reset de-assertion to select I2C mode (1) or SMBus mode (0); after reset, indicates SuperSpeed upstream suspend status (1 = suspended) when enabled through stsOutputEn; internal pull-up, can be left unconnected if the external interface is not implemented."+ },+ {+ "number": "40",+ "name": "BBbmConfigured0/FULLAUTOz/FULLPWRMGMTz/SS_UP",+ "type": "bidirectional",+ "description": "In I2C mode, sets bmConfigured[0] of the Billboard Capability descriptor together with pin 45; in SMBus mode, sampled or used for FullAutoEn/power switch control, or as SS_UP upstream SuperSpeed connection indicator when stsOutputEn is set (1 = SuperSpeed upstream connected); internal pull-down."+ },+ {+ "number": "41",+ "name": "PWRCTL_POL",+ "type": "bidirectional",+ "description": "Sampled at reset de-assertion to set the polarity of PWRCTL[4:1] (0 = active low, 1 = active high); internal pull-up."+ },+ {+ "number": "42",+ "name": "BBEN/GANGED,HS_UP",+ "type": "bidirectional",+ "description": "In I2C mode, Billboard enable (high presents the billboard to the host); in SMBus mode, sampled at reset to select individual (0) or ganged (1) port power control, or as HS_UP upstream high-speed connection indicator when stsOutputEn is set; internal pull-down."+ },+ {+ "number": "43",+ "name": "OVERCUR4z",+ "type": "input",+ "description": "Port 4 over-current detection input from the downstream power switch (0 = over-current has occurred, 1 = no over-current); internal pull-up, may be left unconnected when another OVERCURz pin is used in ganged mode."+ },+ {+ "number": "44",+ "name": "OVERCUR3z",+ "type": "input",+ "description": "Port 3 over-current detection input from the downstream power switch (0 = over-current has occurred, 1 = no over-current); internal pull-up, may be left unconnected when another OVERCURz pin is used in ganged mode."+ },+ {+ "number": "45",+ "name": "BBbmConfigured1/AUTOENz/HS_SUSPEND",+ "type": "bidirectional",+ "description": "In I2C mode, sets bmConfigured[1] of the Billboard Capability descriptor together with pin 40; in SMBus mode, sampled to set autoEnz in the Battery Charging Support register, or as HS_SUSPEND upstream high-speed suspend indicator when stsOutputEn is set (1 = suspended); internal pull-down."+ },+ {+ "number": "46",+ "name": "OVERCUR1z",+ "type": "input",+ "description": "Port 1 over-current detection input from the downstream power switch (0 = over-current has occurred, 1 = no over-current); internal pull-up, may be left unconnected when another OVERCURz pin is used in ganged mode."+ },+ {+ "number": "47",+ "name": "OVERCUR2z",+ "type": "input",+ "description": "Port 2 over-current detection input from the downstream power switch (0 = over-current has occurred, 1 = no over-current); internal pull-up, may be left unconnected when another OVERCURz pin is used in ganged mode."+ },+ {+ "number": "48",+ "name": "USB_VBUS",+ "type": "input",+ "description": "Upstream port VBUS detection input, which requires a voltage divider: connect to VBUS through 90.9 kΩ ±1% and to ground through 10 kΩ ±1%; voltage range 0 to 1.155 V at this terminal."+ },+ {+ "number": "49",+ "name": "TEST",+ "type": "input",+ "description": "Reserved for factory test; requires an external pull-down resistor to ground on the PCB (10 kΩ or stronger recommended) for normal operation."+ },+ {+ "number": "50",+ "name": "GRSTz",+ "type": "input",+ "description": "Global power reset; asserting it returns all internal registers to default states and the device is completely nonfunctional while asserted; internal pull-up."+ },+ {+ "number": "51",+ "name": "VDD",+ "type": "power_in",+ "description": "1.1-V power rail; recommended 0.99 V to 1.26 V, absolute maximum 1.4 V."+ },+ {+ "number": "52",+ "name": "VDD33",+ "type": "power_in",+ "description": "3.3-V power rail; recommended 3.0 V to 3.6 V, absolute maximum 3.8 V."+ },+ {+ "number": "53",+ "name": "USB_DP_UP",+ "type": "bidirectional",+ "description": "USB high-speed differential transceiver (positive) for the upstream port."+ },+ {+ "number": "54",+ "name": "USB_DM_UP",+ "type": "bidirectional",+ "description": "USB high-speed differential transceiver (negative) for the upstream port."+ },+ {+ "number": "55",+ "name": "USB_SSTXP_UP",+ "type": "output",+ "description": "USB SuperSpeed transmitter differential pair (positive) for the upstream port."+ },+ {+ "number": "56",+ "name": "USB_SSTXM_UP",+ "type": "output",+ "description": "USB SuperSpeed transmitter differential pair (negative) for the upstream port."+ },+ {+ "number": "57",+ "name": "VDD",+ "type": "power_in",+ "description": "1.1-V power rail; recommended 0.99 V to 1.26 V, absolute maximum 1.4 V."+ },+ {+ "number": "58",+ "name": "USB_SSRXP_UP",+ "type": "input",+ "description": "USB SuperSpeed receiver differential pair (positive) for the upstream port."+ },+ {+ "number": "59",+ "name": "USB_SSRXM_UP",+ "type": "input",+ "description": "USB SuperSpeed receiver differential pair (negative) for the upstream port."+ },+ {+ "number": "60",+ "name": "NC",+ "type": "unconnected",+ "description": "No connect; leave floating."+ },+ {+ "number": "61",+ "name": "XO",+ "type": "output",+ "description": "Crystal output of the internal oscillator; may be left unconnected if XI is driven by an external oscillator, and a 1-MΩ feedback resistor is required between XI and XO when using a crystal."+ },+ {+ "number": "62",+ "name": "XI",+ "type": "input",+ "description": "Crystal input for the internal oscillator, which may alternately be driven by an external oscillator; a 1-MΩ feedback resistor is required between XI and XO when using a crystal."+ },+ {+ "number": "63",+ "name": "VDD33",+ "type": "power_in",+ "description": "3.3-V power rail; recommended 3.0 V to 3.6 V, absolute maximum 3.8 V."+ },+ {+ "number": "64",+ "name": "USB_R1",+ "type": "input",+ "description": "Precision resistor reference; a 9.53 kΩ ±1% resistor should be connected between USB_R1 and GND."+ },+ {+ "number": "65",+ "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 datasheet pin table (pages 4-8) lists pins 1-64 with a 'Thermal Pad' on the drawing, but the tex; No GND pin is printed in the supplied pin table. The ground connection is carried by the exposed the; Multi-function pins in the datasheet list several alternate names; the name field gives all of them ",+ "exposed pad 65 added from the footprint"+ ],+ "pages_sent": 18,+ "cost_usd": 0.1513,+ "at": "2026-10-08T19:32:15"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/tusb8044a",+ "pages": 69,+ "sha256": "57142228db173b28",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 65,+ "described": 65,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "tusb8044argcr.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 9,+ 9,+ 0.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "dce07a86ec3fe3ca87eebdff13827f55e036ced5518fee01f85cec4a3f56366d",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "tusb8044argcr-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 9,+ 9,+ 0.75+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "cec98d7e33f25d6b7de7170ea2e71e673d3594771b7bc7596387e154a6fe8afc",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}