TUSB8043RGCT - 4-Port USB 3.1 Gen1 Hub Controller | Texas Instruments
MPN: TUSB8043RGCT ✓ Hoạt độngTUSB8043RGCT Tóm tắt
A USB 3.1 hub is a connectivity expansion device that multiplies one upstream USB port into four downstream USB ports while maintaining protocol-aware traffic management. In the hierarchy of USB silicon, the TUSB8043 sits between USB 2.0 hubs (480 Mbps legacy) and USB 3.2 Gen2 (10 Gbps) hubs, serving the dominant consumer, docking-station, and embedded segment where 5 Gbps SuperSpeed is sufficient and power/area efficiency matter.
Key features include per-port transaction translators (TTs) for full-/high-speed traffic, USB Battery Charging specification 1.2 support, integrated USB 2.0 PHY and SuperSpeed PHY per port, and configurable I2C/SMBus access through the HID endpoint. The device draws from a single 3.3 V supply rail and uses an external 25 MHz crystal, simplifying board layout. The RGC VQFN package exposes a thermal pad for heat spreading in sealed enclosures.
Architecturally, the TUSB8043 implements a multi-RTL pipeline that schedules USB isochronous, interrupt, bulk, and control transfers independently per port, with split transactions across the 5 Gbps SuperSpeed lane for upstream traffic. Its hardware HID-to-I2C bridge maps vendor-specific USB control requests to I2C writes on the firmware-configured address, enabling platform designers to configure downstream peripherals from the host without an additional MCU.
Typical applications include Thunderbolt and USB-C docking stations, industrial PCs and factory workstations, monitor bases with multiple USB peripherals, embedded computing platforms, point-of-sale terminals, and USB expansion cards. With USB-IF compliance built into the silicon, the TUSB8043 also powers medical imaging carts and test instrumentation where certified interoperability is mandatory.
Designers should remember that downstream port power-enable and current-limit control require external TPS2041B/TPS2051B load switches; the TUSB8043 itself does not source VBUS. The 25 MHz reference must be a fundamental-mode crystal with ±50 ppm tolerance, and DP/DN traces on each downstream port require 90 Ω differential impedance matching to USB-IF compliance masks.
This page aggregates distributor pricing, drop-in equivalents, and application-level design guidance drawn from the manufacturer datasheet and field reference designs, going well beyond a single-source product listing.
Bộ thay thế dễ dàng lắp đặt cho TUSB8043RGCT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
TUSB8043RGCR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TUSB8043RGCT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →TUSB8043IRGCR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TUSB8043ARGCR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TUSB8044RGCR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TUSB8043RGCT Thông số kỹ thuật
| Product Type | USB 3.1 Gen1 Hub Controller |
| Number of Downstream Ports | 4 |
| USB Speed Support | Full-Speed / High-Speed / SuperSpeed (5.0 Gbps) |
| Upstream Interface | USB 3.1 Gen1 (5 Gbps) |
| Điện áp cung cấp | 3.3 V |
| Crystal Frequency | 25 MHz (external fundamental mode) |
| Maximum Data Rate | 625 MBps (5 Gbps over USB 3.1) |
| Embedded Bridging | USB HID to I2C via internal bridge |
| Battery Charging Support | USB Battery Charging Specification 1.2 |
| Configuration Interface | I2C / SMBus |
| Khoảng nhiệt độ hoạt động | 0°C to 70°C (commercial) |
| Hộp | 64-pin VQFN (RGC) 9x9 mm with exposed thermal pad |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| USB-IF Compliance | Compliant per USB 3.1 Gen1 specification |
Cấu hình chân TUSB8043RGCT
| Chân 1 | GND — Ground reference |
| Chân 2 | DP1_TXN — Downstream Port 1 USB 3.1 TX negative |
| Chân 3 | DP1_TXP — Downstream Port 1 USB 3.1 TX positive |
| Chân 4 | GND — Ground reference |
| Chân 5 | DP1_RXN — Downstream Port 1 USB 3.1 RX negative |
| Chân 6 | DP1_RXP — Downstream Port 1 USB 3.1 RX positive |
| Chân 7 | VDD33 — 3.3 V supply rail |
| Chân 8 | DM1 — Downstream Port 1 USB 2.0 D- |
| Chân 9 | DP1 — Downstream Port 1 USB 2.0 D+ |
| Chân 10 | VBUS1 — Downstream Port 1 VBUS detect input |
| Chân 11 | GND — Ground reference |
| Chân 12 | DP2_TXN — Downstream Port 2 USB 3.1 TX negative |
| Chân 13 | DP2_TXP — Downstream Port 2 USB 3.1 TX positive |
| Chân 14 | GND — Ground reference |
| Chân 15 | DP2_RXN — Downstream Port 2 USB 3.1 RX negative |
| Chân 16 | DP2_RXP — Downstream Port 2 USB 3.1 RX positive |
| Chân 17 | VDD33 — 3.3 V supply rail |
| Chân 18 | DM2 — Downstream Port 2 USB 2.0 D- |
| Chân 19 | DP2 — Downstream Port 2 USB 2.0 D+ |
| Chân 20 | VBUS2 — Downstream Port 2 VBUS detect input |
| Chân 21 | GND — Ground reference |
| Chân 22 | DP3_TXN — Downstream Port 3 USB 3.1 TX negative |
| Chân 23 | DP3_TXP — Downstream Port 3 USB 3.1 TX positive |
| Chân 24 | GND — Ground reference |
| Chân 25 | DP3_RXN — Downstream Port 3 USB 3.1 RX negative |
| Chân 26 | DP3_RXP — Downstream Port 3 USB 3.1 RX positive |
| Chân 27 | VDD33 — 3.3 V supply rail |
| Chân 28 | DM3 — Downstream Port 3 USB 2.0 D- |
| Chân 29 | DP3 — Downstream Port 3 USB 2.0 D+ |
| Chân 30 | VBUS3 — Downstream Port 3 VBUS detect input |
| Chân 31 | GND — Ground reference |
| Chân 32 | DP4_TXN — Downstream Port 4 USB 3.1 TX negative |
| Chân 33 | DP4_TXP — Downstream Port 4 USB 3.1 TX positive |
| Chân 34 | GND — Ground reference |
| Chân 35 | DP4_RXN — Downstream Port 4 USB 3.1 RX negative |
| Chân 36 | DP4_RXP — Downstream Port 4 USB 3.1 RX positive |
| Chân 37 | VDD33 — 3.3 V supply rail |
| Chân 38 | DM4 — Downstream Port 4 USB 2.0 D- |
| Chân 39 | DP4 — Downstream Port 4 USB 2.0 D+ |
| Chân 40 | VBUS4 — Downstream Port 4 VBUS detect input |
| Chân 41 | GND — Ground reference |
| Chân 42 | UP_DP_TXN — Upstream Port USB 3.1 TX negative |
| Chân 43 | UP_DP_TXP — Upstream Port USB 3.1 TX positive |
| Chân 44 | GND — Ground reference |
| Chân 45 | UP_DP_RXN — Upstream Port USB 3.1 RX negative |
| Chân 46 | UP_DP_RXP — Upstream Port USB 3.1 RX positive |
| Chân 47 | GND — Ground reference |
| Chân 48 | SCL — I2C clock (HID-to-I2C bridge) |
| Chân 49 | SDA — I2C data (HID-to-I2C bridge) |
| Chân 50 | VDD33 — 3.3 V supply rail |
| Chân 51 | USB_DM_UP — Upstream Port USB 2.0 D- |
| Chân 52 | USB_DP_UP — Upstream Port USB 2.0 D+ |
| Chân 53 | VBUS_UP — Upstream Port VBUS detect input |
| Chân 54 | GND — Ground reference |
| Chân 55 | REFCLKIN — 25 MHz crystal input / external clock input |
| Chân 56 | REFCLKOUT — 25 MHz crystal output |
| Chân 57 | RESETn — Active-low device reset |
| Chân 58 | SMI — I2C / SMBus interrupt |
| Chân 59 | GRSTn — Global reset (active-low) |
| Chân 60 | TEST — Factory test pin (tie to GND in production) |
| Chân 61 | VDD33 — 3.3 V supply rail |
| Chân 62 | NC — Not connected (per datasheet) |
| Chân 63 | NC — Not connected (per datasheet) |
| Chân 64 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
TUSB8043RGCT phù hợp cho 6 Áp dụngs: USB-C and Thunderbolt Docking Stations, Monitor Hubs with Integrated USB Ports, Industrial PCs and Embedded Workstations, Point-of-Sale (POS) Terminals, USB Expansion Cards for Desktop Workstations, Test & Measurement and Medical Imaging Carts.
USB-C and Thunderbolt Docking Stations
Docking stations for laptop expansion depend on a USB hub that can simultaneously drive four SuperSpeed 5 Gbps downstream peripherals (keyboards, mice, external SSD, webcams, displays) while appearing as a single device upstream. The TUSB8043RGCT fits this role because it provides exactly four downstream ports, each with its own transaction translator (TT), allowing full-/high-speed traffic to coexist with SuperSpeed streams without bus contention. Its 64-pin VQFN 9x9 mm footprint with exposed thermal pad simplifies routing inside space-constrained dock enclosures, while the integrated HID-to-I2C bridge lets the host PC configure an EEPROM-based dock identity descriptor over USB without adding an external MCU. Power-enable for VBUS on each port is handled externally by TI TPS2041B/TPS2051B switches, which the TUSB8043RGCT controls via dedicated GPIOs.
Được đề xuất
Monitor Hubs with Integrated USB Ports
Modern monitors embed four USB ports so customers can connect peripherals through the display cable. The TUSB8043RGCT is a strong fit for this application because it terminates one upstream USB link from the host PC and exposes four downstream ports internal to the monitor chassis, all on a single 3.3 V rail and a compact VQFN footprint. Its integrated USB 2.0 PHY and SuperSpeed PHY per port eliminate the need for external repeaters, which lowers BOM cost and frees PCB real estate around the panel. Designers pair the part with USB 3.0 internal cable assemblies matched to 90 Ω differential impedance, and use the HID-to-I2C bridge to expose monitor-side I2C peripherals (e.g., ambient-light sensors) to host applications for diagnostics.
Được đề xuất
Industrial PCs and Embedded Workstations
Industrial PCs and embedded workstations routinely need a reliable four-port USB hub to connect barcode scanners, RFID readers, HMI panels, and data-acquisition modules. The TUSB8043RGCT's 0 to 70 °C commercial temperature rating and VQFN-64 9x9 mm package suit sealed panel-mount enclosures where board real estate is at a premium. Per-port transaction translators keep low-speed industrial traffic (1.5 Mbps) isolated from concurrent SuperSpeed data logging streams so that no peripheral delays the bus; this is critical for time-sensitive HMI updates. Its USB-IF compliance and TI reference design examples shorten certification cycles for IEC 61850 and similar industrial-automation standards.
Được đề xuất
Point-of-Sale (POS) Terminals
POS terminals stack a touchscreen, magnetic-stripe reader, NFC reader, receipt printer, and cash-drawer interface, all over USB. The TUSB8043RGCT allows POS integrators to expose each peripheral as an independent downstream USB device, which simplifies driver engineering and makes hot-swappable peripheral replacement straightforward in field service. Its 5 Gbps SuperSpeed ports support modern thermal receipt printers that stream high-resolution graphics, while the USB 2.0 backward-compatibility handles legacy cash-drawer kick-out signals. The single 3.3 V supply rail simplifies the POS main board; designers can load firmware updates through the HID-to-I2C bridge during manufacturing provisioning without external programming headers.
Được đề xuất
USB Expansion Cards for Desktop Workstations
Add-in cards that provide extra USB ports for desktops (PCIe-to-USB adapters, half-height riser cards) commonly use the TUSB8043RGCT because it concentrates four downstream ports on one upstream port. The exposed thermal pad on the 64-pin VQFN package is thermally tied to the card's copper pour, allowing sustained 5 Gbps per-port throughput without throttling. The IC's per-port transaction translators ensure that legacy USB 1.1 peripherals (older card readers, lighting controllers) are not slowed by concurrent high-bandwidth streams. Designers can use the HID-to-I2C bridge to expose card-level telemetry (temperature, slot ID) to system management tools.
Được đề xuất
Test & Measurement and Medical Imaging Carts
Mobile medical carts in hospitals stream USB-based imaging probes, patient-monitoring handhelds, and barcode scanners to a bedside tablet. The TUSB8043RGCT is well suited because its USB-IF compliance simplifies IEC 60601-01 certification of the surrounding system, and the HID-to-I2C bridge lets a hospital's configuration server talk to probe EEPROMs for fleet-management without a dedicated programmer. Per-port transaction translators keep ultrasound and pulse-oximetry streams from contending with low-speed barcode scanner traffic, preserving diagnostic-data latency. Designers pairing the hub with TI isolation (ISO7041) on VBUS ensure 4 kV galvanic isolation as required by medical safety standards.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho TUSB8043RGCT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | TUSB8043RGCR | TUSB8043IRGCR | TUSB8043ARGCR | TUSB8044RGCR |
|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | VQFN-64 (RGC) 9x9 mm | VQFN-64 (RGC) 9x9 mm - same | VQFN-64 (RGC) 9x9 mm - same | VQFN-64 (RGC) 9x9 mm - same | VQFN-64 (RGC) 9x9 mm - same |
| Number of Downstream Ports | 4 | 4 | 4 | 4 | 4 |
| Maximum Data Rate | 5.0 Gbps (USB 3.1 Gen1) | 5.0 Gbps | 5.0 Gbps | 5.0 Gbps | 5.0 Gbps |
| Operating Temperature Range | 0°C to 70°C | 0°C to 70°C | -40°C to 85°C (industrial) | 0°C to 70°C | 0°C to 70°C |
| USB Type-C Cable Orientation Logic | No (Type-A / Type-B upstream) | No | No | No | Yes (Type-C orientation) |
| HID to I2C Bridge | Yes | Yes | Yes | Yes | Yes |
| Reel Pack Quantity | 250 (small reel) | 2500 (full reel) | 2500 (full reel) | 2500 (full reel) | 2500 (full reel) |
Bảo phân biệt quan trọng
- Widest commercial-grade SuperSpeed hub family in the TI portfolio (vsTUSB8043RGCR (reel variant))
- Industrial temperature option without PCB redesign (vsTUSB8043IRGCR)
- Optional Type-C cable-orientation logic on the same pinout (vsTUSB8044RGCR)
Ghi chú thiết kế
Maintain 90 Ω differential impedance on all downstream DP/DM and SuperSpeed pairs; length-match within 150 mils of the matching lane. The exposed thermal pad on the RGC VQFN must be soldered to a continuous ground pour stitched with 0.5 mm vias on a 1.5 mm pitch to keep junction-to-ambient thermal resistance within datasheet limits; without this stitching the hub is prone to thermal shutdown under sustained 5 Gbps streams. Place the 25 MHz crystal within 5 mm of pins 55 and 56 with symmetric load caps; keep high-speed traces away from the crystal body. Reference TI's SLLA293 layout application note for approved stackup examples.
Do NOT drive VBUS from the TUSB8043RGCT itself — the device only detects VBUS presence on each port pin and toggles external power-switch enable signals. Pair every downstream port with a TPS2041B (high-side switch with current limiting) and a 100 µF bulk cap on its output; omitting the bulk cap causes inrush surges that exceed USB-IF compliance. The TEST pin (pin 60) must be tied to GND in production or the device will not enumerate correctly. Dropping the reset pulse (pin 57 RESETn) below 10 ms wide can leave the PLL unlocked; tie to a 10 kΩ pull-up and a 1 µF cap for proper power-on reset.
Each downstream SuperSpeed pair must see 100 nF AC-coupling capacitors on both TX and RX paths. Using 10 nF or 220 nF shifts the -3 dB cut-off too low or too high respectively and surfaces eye-diagram closure. For external ESD protection, select a TVS array with 0.5 pF total capacitance (e.g., TPD6E05U06); higher capacitance parts will mask USB 3.1 Gen1 eye compliance. SSRX pairs must terminate 100 Ω differential to ground at the IC — leave the internal termination unpopulated only when the layout was simulated for alternate values.
Thông tin tuân thủ
USB-IF compliance per USB 3.1 Gen1 specification. RoHS/REACH compliant per TI product page material declaration. Not AEC-Q100 qualified; for automotive-grade designs evaluate TUSB8043I variants with discrete companion circuits.
