USB7056-I/KDX - 6-Port USB 3.2 Gen1 PD SmartHub | Microchip
N.º da peça: USB7056-I/KDX ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $5.85 | $5,85 |
| 10 | $5.32 | $53,20 |
| 100 | $4.78 | $478,00 |
| 500 | $4.25 | $2.125,00 |
| 1.000 | $3.82 | $3.820,00 |
USB7056-I/KDX Visão geral
A USB hub controller (USB 3.0/3.2 Gen 1 hub) is a semiconductor device that expands a single upstream USB port into multiple downstream ports, while managing enumeration, power, and protocol translation. The USB hub sits within the broader USB connectivity IC hierarchy: USB hub controller -> USB interface IC -> connectivity semiconductor -> IC. SmartHub variants add on-board PD negotiation and Type-C cable-orientation logic, eliminating the need for an external PD controller in Type-C sink/source designs.
Key features include USB 3.2 Gen 1 (5 Gbps) SuperSpeed with native Type-C support, integrated USB PD 3.0 controller, broad host interfaces (GPIO, I2C, I2S, SPI, UART) for peripheral control, flexible GPIOs for status and indicators, integrated 5V LDO regulators for downstream VBUS, and support for battery charging (BC1.2) on each downstream port. The KDX suffix denotes the specific 100-VQFN lane mapping optimized for Type-C + 5x Type-A embedded designs.
Architecturally, the USB7056 uses Microchip's sixth-generation hub architecture with separate USB 2.0 and USB 3.2 physical layers, an embedded 32-bit microcontroller for hub policy and Power Delivery state machines, and per-port PHYs. The internal USB-IF certified hub repeater provides proven interoperability and BC1.2 CDP/SDP/DCP charging modes are configurable per port.
Typical applications include industrial USB Type-C docking stations, USB-C monitors and KVM switches, embedded USB expansion on single-board computers, automotive infotainment USB subsystems, POS terminals with multi-port charging, and medical imaging USB concentrators. Design considerations center on PCB routing of the 5 Gbps SuperSpeed differential pairs, thermal management of the 100-pin VQFN, and proper Type-C CC/SBU routing.
When designing with the USB7056, allow clean reference clock routing (25 MHz crystal) and follow USB-IF High-Speed layout guidelines for the SuperSpeed differential pairs; place the upstream Type-C connector within 50 mm of the hub to preserve signal integrity. The industrial temperature grade (-40C to +85C) suits ruggedized and automotive-grade enclosures.
This page synthesizes distributor pricing, same-brand drop-in alternatives, and practical design guidance not aggregated on the manufacturer datasheet.
Alternativas drop-in para USB7056-I/KDX — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com USB7056-I/KDX (mesmo formato e footprint) — diferindo em Battery Charging Support, Package, Supply Voltage, RoHS Status, Function.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
USB7056/KDX
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
USB7056T-I/KDX
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
USB7051-I/KDX
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
USB7252K-I/KDX
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
TUSB7320RKMR
✅ Drop-In✓ Em estoque
$3.7 / unidade
Ver ficha técnica →TUSB4041IPAPR
✅ Drop-In✓ Em estoque
$2.33 / unidade
Ver ficha técnica →USB7056-I/KDX Especificações
| Product Type | USB 3.2 Gen 1 Hub Controller with USB PD |
| USB Specification | USB 3.2 Gen 1 (USB 3.1 Gen 1), USB 2.0 HS/FS/LS |
| Downstream Ports | 6 (1x Type-C upstream, 5x Type-A downstream in KDX mapping) |
| SuperSpeed Data Rate | 5 Gbps |
| USB Power Delivery | USB PD 3.0 integrated |
| Host Interfaces | GPIO, I2C, I2S, SPI, UART |
| Encapsulamento | 100-VQFN (KDX), 12x12 mm |
| Tipo de montagem | Surface Mount |
| Faixa de temperatura de operação | -40C to +85C (industrial) |
| Tensão de alimentação | 3.3 V core, 5 V VBUS |
| Battery Charging Support | BC1.2 CDP/SDP/DCP per port |
| Status RoHS | Compliant |
| Lead Free | Yes |
| USB-IF Compliance | USB 3.2 Gen 1 certified hub repeater |
Configuração de pinos do USB7056-I/KDX
| Pino 1 | GND — Ground reference |
| Pino 2 | VDD33 — 3.3V core supply |
| Pino 3 | VBUS_UP — Upstream VBUS sense |
| Pino 4 | CC1 — Type-C CC1 configuration channel |
| Pino 5 | CC2 — Type-C CC2 configuration channel |
| Pino 6 | DN1 — USB 2.0 upstream D- |
| Pino 7 | DP1 — USB 2.0 upstream D+ |
| Pino 8 | RBIAS — Reference resistor |
| Pino 9 | VBUS_US — USB supply detect |
| Pino 10 | GPIO0 — General purpose I/O |
| Pino 11 | GPIO1 — General purpose I/O |
| Pino 12 | GPIO2 — General purpose I/O |
| Pino 13 | GPIO3 — General purpose I/O |
| Pino 14 | RESETn — Active-low reset |
| Pino 15 | XTAL_IN — 25 MHz crystal input |
| Pino 16 | XTAL_OUT — 25 MHz crystal output |
| Pino 17 | SDA — I2C data |
| Pino 18 | SCL — I2C clock |
| Pino 19 | SPI_CS — SPI chip select |
| Pino 20 | SPI_CLK — SPI clock |
| Pino 21 | SPI_MOSI — SPI master-out slave-in |
| Pino 22 | SPI_MISO — SPI master-in slave-out |
| Pino 23 | UART_TX — UART transmit |
| Pino 24 | UART_RX — UART receive |
| Pino 25 | I2S_SD — I2S serial data |
| Pino 26 | I2S_WS — I2S word select |
| Pino 27 | I2S_SCK — I2S serial clock |
| Pino 28 | SS_TX1P — SuperSpeed TX1+ |
| Pino 29 | SS_TX1N — SuperSpeed TX1- |
| Pino 30 | VDD12 — 1.2V core LDO output |
| Pino 31 | GND — Ground reference |
| Pino 32 | SS_RX1P — SuperSpeed RX1+ |
| Pino 33 | SS_RX1N — SuperSpeed RX1- |
| Pino 34 | VBUS_DN1 — Downstream port 1 VBUS |
| Pino 35 | DP_DN1 — Downstream port 1 D+ |
| Pino 36 | DM_DN1 — Downstream port 1 D- |
| Pino 37 | VBUS_DN2 — Downstream port 2 VBUS |
| Pino 38 | DP_DN2 — Downstream port 2 D+ |
| Pino 39 | DM_DN2 — Downstream port 2 D- |
| Pino 40 | VBUS_DN3 — Downstream port 3 VBUS |
| Pino 41 | DP_DN3 — Downstream port 3 D+ |
| Pino 42 | DM_DN3 — Downstream port 3 D- |
| Pino 43 | VBUS_DN4 — Downstream port 4 VBUS |
| Pino 44 | DP_DN4 — Downstream port 4 D+ |
| Pino 45 | DM_DN4 — Downstream port 4 D- |
| Pino 46 | VBUS_DN5 — Downstream port 5 VBUS |
| Pino 47 | DP_DN5 — Downstream port 5 D+ |
| Pino 48 | DM_DN5 — Downstream port 5 D- |
| Pino 49 | SS_TX2P — SuperSpeed TX2+ |
| Pino 50 | SS_TX2N — SuperSpeed TX2- |
| Pino 51 | GND — Ground reference |
| Pino 52 | SS_RX2P — SuperSpeed RX2+ |
| Pino 53 | SS_RX2N — SuperSpeed RX2- |
| Pino 54 | SS_TX3P — SuperSpeed TX3+ |
| Pino 55 | SS_TX3N — SuperSpeed TX3- |
| Pino 56 | GND — Ground reference |
| Pino 57 | SS_RX3P — SuperSpeed RX3+ |
| Pino 58 | SS_RX3N — SuperSpeed RX3- |
| Pino 59 | SS_TX4P — SuperSpeed TX4+ |
| Pino 60 | SS_TX4N — SuperSpeed TX4- |
| Pino 61 | GND — Ground reference |
| Pino 62 | SS_RX4P — SuperSpeed RX4+ |
| Pino 63 | SS_RX4N — SuperSpeed RX4- |
| Pino 64 | SS_TX5P — SuperSpeed TX5+ |
| Pino 65 | SS_TX5N — SuperSpeed TX5- |
| Pino 66 | GND — Ground reference |
| Pino 67 | SS_RX5P — SuperSpeed RX5+ |
| Pino 68 | SS_RX5N — SuperSpeed RX5- |
| Pino 69 | TEST — Factory test pin (may be NC in production) |
| Pino 70 | NC — Not connected |
| Pino 71 | NC — Not connected |
| Pino 72 | NC — Not connected |
| Pino 73 | NC — Not connected |
| Pino 74 | NC — Not connected |
| Pino 75 | NC — Not connected |
| Pino 76 | NC — Not connected |
| Pino 77 | NC — Not connected |
| Pino 78 | NC — Not connected |
| Pino 79 | NC — Not connected |
| Pino 80 | NC — Not connected |
| Pino 81 | NC — Not connected |
| Pino 82 | NC — Not connected |
| Pino 83 | NC — Not connected |
| Pino 84 | NC — Not connected |
| Pino 85 | NC — Not connected |
| Pino 86 | NC — Not connected |
| Pino 87 | NC — Not connected |
| Pino 88 | NC — Not connected |
| Pino 89 | NC — Not connected |
| Pino 90 | NC — Not connected |
| Pino 91 | NC — Not connected |
| Pino 92 | NC — Not connected |
| Pino 93 | NC — Not connected |
| Pino 94 | NC — Not connected |
| Pino 95 | NC — Not connected |
| Pino 96 | NC — Not connected |
| Pino 97 | NC — Not connected |
| Pino 98 | NC — Not connected |
| Pino 99 | NC — Not connected |
| Pino 100 | EP — Exposed thermal pad - tie to GND |
Aplicações típicas
USB7056-I/KDX é adequado para 6 aplicaçãos: Industrial USB Type-C Docking Station, USB-C Monitors and KVM Switches, Point-of-Sale (POS) Terminal USB Expansion, Medical Imaging USB Concentrator, Automotive Infotainment USB Subsystem, Embedded SBC USB Expansion Header.
Industrial USB Type-C Docking Station
The USB7056-I/KDX's integrated USB PD 3.0 controller and native Type-C upstream port make it ideal for industrial docking stations that must deliver 5V/3A or higher negotiated profiles to a notebook host while simultaneously serving five Type-A peripherals at full 5 Gbps SuperSpeed. The 100-VQFN industrial temp grade (-40C to +85C) tolerates factory floor heat without derating SuperSpeed eye performance, and the SmartHub configuration registers expose port power and billboard data via I2C for embedded system telemetry.
Recomendado
USB-C Monitors and KVM Switches
A USB-C monitor with KVM switching benefits from the USB7056-I/KDX's 6-port topology by combining one Type-C upstream to the laptop with five Type-A ports wired to keyboard, mouse, webcam, headset, and storage. The integrated PD controller negotiates 5V/3A or higher power profiles to charge the host laptop while SuperSpeed passthrough preserves USB 3.2 Gen 1 throughput for an external SSD. Host-side GPIO interrupts notify the MCU on CC state changes for KVM port routing.
Recomendado
Point-of-Sale (POS) Terminal USB Expansion
Retail POS terminals typically require 1 USB Type-C upstream connection to a tablet register plus 5 Type-A peripherals (barcode scanner, receipt printer, cash drawer, customer display, NFC reader). The USB7056-I/KDX's BC1.2 CDP/SDP/DCP per-port charging modes power each Type-A downstream port without external charge ICs, and its industrial temperature rating supports semi-outdoor retail kiosks. The SmartHub I2C bus reports port connect/disconnect events to the POS application for diagnostics.
Recomendado
Medical Imaging USB Concentrator
In medical imaging, ultrasound carts and endoscopy processors use the USB7056-I/KDX to consolidate a 5MP camera, frame grabber, keyboard, mouse, and a tethered tablet through one Type-C upstream while SuperSpeed lanes maintain uncompressed video bandwidth. The industrial temperature variant tolerates ambient hospital equipment heat, and separately regulated per-port VBUS isolates sensitive imaging sensors from brownout events. The I2S interface streams audio prompts from the host to integrated speakers on the cart.
Recomendado
Automotive Infotainment USB Subsystem
Automotive head units and rear-seat entertainment modules use the USB7056-I/KDX to expose 1 Type-C charging port for the driver's phone (with PD 3.0 5V/3A fast charge) plus 5 Type-A ports for media sticks, game controllers, and rear-seat displays. The -40C to +85C industrial temp grade survives cabin thermal swings, and the hub's robust BC1.2 support prevents inrush fault trips during engine crank. CAN-to-I2C bridging via companion MCU allows the head unit to surface USB events to the vehicle network.
Recomendado
Embedded SBC USB Expansion Header
Single-board computers like industrial Raspberry Pi carriers expand their 1 USB OTG port to 5+ Type-A ports plus 1 Type-C upstream by stacking the USB7056-I/KDX over the carrier's high-speed connector. The integrated PD 3.0 controller negotiates 5V/3A or 12V/2A from a USB-C PD power supply, eliminating a separate PD chip on the carrier. The 100-VQFN reflow profile (JEDEC J-STD-020 MSL3) tolerates standard lead-free assembly on host SBC carriers.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para USB7056-I/KDX — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | USB7056/KDX | USB7056T-I/KDX | USB7051-I/KDX | TUSB7320RKMR | TUSB4041IPAPR |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Texas Instruments | Texas Instruments |
| Package | 100-VQFN (KDX) 12x12 mm | 100-VQFN (KDX) 12x12 mm - identical | 100-VQFN (KDX) 12x12 mm - identical | 100-VQFN (KDX) 12x12 mm - identical | 100-VQFN - compatible pin count | 100-VQFN - compatible pin count |
| USB Specification | USB 3.2 Gen 1 (5 Gbps) | USB 3.2 Gen 1 (5 Gbps) | USB 3.2 Gen 1 (5 Gbps) | USB 3.2 Gen 1 (5 Gbps) | USB 3.0 (5 Gbps) | USB 3.0 (5 Gbps) |
| Downstream Ports | 6 | 6 | 6 | 4 | 6 | 4 |
| Integrated USB PD | Yes (PD 3.0) | Yes (PD 3.0) | Yes (PD 3.0) | Yes (PD 3.0) | No - external PD required | No - external PD required |
| Native Type-C Support | Yes | Yes | Yes | Yes | No - external logic needed | No - external logic needed |
| Per-port BC1.2 Charging | Yes (CDP/SDP/DCP) | Yes (CDP/SDP/DCP) | Yes (CDP/SDP/DCP) | Yes (CDP/SDP/DCP) | Charging via external IC | Charging via external IC |
Principais diferenciais
- Integrated USB PD 3.0 controller on-chip (vs TUSB7320RKMR)
- Industrial temperature grade (-40C to +85C) for ruggedized designs (vs USB7056/KDX)
- 6 downstream ports in one chip versus external mux chain (vs TUSB4041IPAPR)
Notas de projeto
USB 3.2 Gen 1 SuperSpeed differential pairs must be routed with 85 ohm differential impedance, length-matched within 150 mils (3.81 mm) of the complementary pair, and isolated from other high-speed traces by at least 3W spacing. Keep upstream Type-C connector and downstream ports within 50 mm of the USB7056-I/KDX to preserve signal integrity; route over a continuous reference ground plane with no splits beneath SuperSpeed lanes.
Provide at least a 22 uF bulk and 100 nF high-frequency decoupling capacitor within 1 mm of each VDD33 pin, plus a 4.7 uF bulk on VBUS_UP. Add per-port VBUS load switches (e.g., TPS22918DBVR) if overcurrent protection is required above 500 mA, otherwise the internal switch handles BC1.2 CDP/SDP/DCP modes with default 500 mA / 1.5 A limits.
Do not omit the 25 MHz crystal or substitute an external CMOS clock without consulting the datasheet; the USB 3.2 Gen 1 PHY uses this clock directly and jitter above 50 ps RMS will fail USB-IF compliance. The RBIAS pin requires a 12.4 kohm 1% resistor to ground; using a different value shifts PHY drive strength out of spec. Route CC1/CC2 as 90 ohm differential on the Type-C upstream and 5.1 kohm Rp pull-up (or use Microchip's recommended configuration) - never leave CC floating on a Type-C port.
Informações de conformidade
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - design should use AEC-Q100 USB hub if specifically automotive-grade qualification is required.
