USB7056-I/KDX - 6-Port USB 3.2 Gen1 PD SmartHub | Microchip
Référence : USB7056-I/KDX ✓ Actif| Qté | Prix unitaire | 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 Présentation
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.
Alternatives de remplacement direct pour USB7056-I/KDX — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec USB7056-I/KDX (même facteur de forme et même empreinte) — différant par Battery Charging Support, Package, Supply Voltage, RoHS Status, Function.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
USB7056/KDX
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
USB7056T-I/KDX
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
USB7051-I/KDX
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
USB7252K-I/KDX
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
TUSB7320RKMR
✅ Remplacement direct✓ En stock
$3.7 / unité
Voir la fiche technique →TUSB4041IPAPR
✅ Remplacement direct✓ En stock
$2.33 / unité
Voir la fiche technique →USB7056-I/KDX Spécifications
| 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 |
| Boîtier | 100-VQFN (KDX), 12x12 mm |
| Type de montage | Surface Mount |
| Plage de température de fonctionnement | -40C to +85C (industrial) |
| Tension d'alimentation | 3.3 V core, 5 V VBUS |
| Battery Charging Support | BC1.2 CDP/SDP/DCP per port |
| Statut RoHS | Compliant |
| Lead Free | Yes |
| USB-IF Compliance | USB 3.2 Gen 1 certified hub repeater |
Configuration des broches de USB7056-I/KDX
| Broche 1 | GND — Ground reference |
| Broche 2 | VDD33 — 3.3V core supply |
| Broche 3 | VBUS_UP — Upstream VBUS sense |
| Broche 4 | CC1 — Type-C CC1 configuration channel |
| Broche 5 | CC2 — Type-C CC2 configuration channel |
| Broche 6 | DN1 — USB 2.0 upstream D- |
| Broche 7 | DP1 — USB 2.0 upstream D+ |
| Broche 8 | RBIAS — Reference resistor |
| Broche 9 | VBUS_US — USB supply detect |
| Broche 10 | GPIO0 — General purpose I/O |
| Broche 11 | GPIO1 — General purpose I/O |
| Broche 12 | GPIO2 — General purpose I/O |
| Broche 13 | GPIO3 — General purpose I/O |
| Broche 14 | RESETn — Active-low reset |
| Broche 15 | XTAL_IN — 25 MHz crystal input |
| Broche 16 | XTAL_OUT — 25 MHz crystal output |
| Broche 17 | SDA — I2C data |
| Broche 18 | SCL — I2C clock |
| Broche 19 | SPI_CS — SPI chip select |
| Broche 20 | SPI_CLK — SPI clock |
| Broche 21 | SPI_MOSI — SPI master-out slave-in |
| Broche 22 | SPI_MISO — SPI master-in slave-out |
| Broche 23 | UART_TX — UART transmit |
| Broche 24 | UART_RX — UART receive |
| Broche 25 | I2S_SD — I2S serial data |
| Broche 26 | I2S_WS — I2S word select |
| Broche 27 | I2S_SCK — I2S serial clock |
| Broche 28 | SS_TX1P — SuperSpeed TX1+ |
| Broche 29 | SS_TX1N — SuperSpeed TX1- |
| Broche 30 | VDD12 — 1.2V core LDO output |
| Broche 31 | GND — Ground reference |
| Broche 32 | SS_RX1P — SuperSpeed RX1+ |
| Broche 33 | SS_RX1N — SuperSpeed RX1- |
| Broche 34 | VBUS_DN1 — Downstream port 1 VBUS |
| Broche 35 | DP_DN1 — Downstream port 1 D+ |
| Broche 36 | DM_DN1 — Downstream port 1 D- |
| Broche 37 | VBUS_DN2 — Downstream port 2 VBUS |
| Broche 38 | DP_DN2 — Downstream port 2 D+ |
| Broche 39 | DM_DN2 — Downstream port 2 D- |
| Broche 40 | VBUS_DN3 — Downstream port 3 VBUS |
| Broche 41 | DP_DN3 — Downstream port 3 D+ |
| Broche 42 | DM_DN3 — Downstream port 3 D- |
| Broche 43 | VBUS_DN4 — Downstream port 4 VBUS |
| Broche 44 | DP_DN4 — Downstream port 4 D+ |
| Broche 45 | DM_DN4 — Downstream port 4 D- |
| Broche 46 | VBUS_DN5 — Downstream port 5 VBUS |
| Broche 47 | DP_DN5 — Downstream port 5 D+ |
| Broche 48 | DM_DN5 — Downstream port 5 D- |
| Broche 49 | SS_TX2P — SuperSpeed TX2+ |
| Broche 50 | SS_TX2N — SuperSpeed TX2- |
| Broche 51 | GND — Ground reference |
| Broche 52 | SS_RX2P — SuperSpeed RX2+ |
| Broche 53 | SS_RX2N — SuperSpeed RX2- |
| Broche 54 | SS_TX3P — SuperSpeed TX3+ |
| Broche 55 | SS_TX3N — SuperSpeed TX3- |
| Broche 56 | GND — Ground reference |
| Broche 57 | SS_RX3P — SuperSpeed RX3+ |
| Broche 58 | SS_RX3N — SuperSpeed RX3- |
| Broche 59 | SS_TX4P — SuperSpeed TX4+ |
| Broche 60 | SS_TX4N — SuperSpeed TX4- |
| Broche 61 | GND — Ground reference |
| Broche 62 | SS_RX4P — SuperSpeed RX4+ |
| Broche 63 | SS_RX4N — SuperSpeed RX4- |
| Broche 64 | SS_TX5P — SuperSpeed TX5+ |
| Broche 65 | SS_TX5N — SuperSpeed TX5- |
| Broche 66 | GND — Ground reference |
| Broche 67 | SS_RX5P — SuperSpeed RX5+ |
| Broche 68 | SS_RX5N — SuperSpeed RX5- |
| Broche 69 | TEST — Factory test pin (may be NC in production) |
| Broche 70 | NC — Not connected |
| Broche 71 | NC — Not connected |
| Broche 72 | NC — Not connected |
| Broche 73 | NC — Not connected |
| Broche 74 | NC — Not connected |
| Broche 75 | NC — Not connected |
| Broche 76 | NC — Not connected |
| Broche 77 | NC — Not connected |
| Broche 78 | NC — Not connected |
| Broche 79 | NC — Not connected |
| Broche 80 | NC — Not connected |
| Broche 81 | NC — Not connected |
| Broche 82 | NC — Not connected |
| Broche 83 | NC — Not connected |
| Broche 84 | NC — Not connected |
| Broche 85 | NC — Not connected |
| Broche 86 | NC — Not connected |
| Broche 87 | NC — Not connected |
| Broche 88 | NC — Not connected |
| Broche 89 | NC — Not connected |
| Broche 90 | NC — Not connected |
| Broche 91 | NC — Not connected |
| Broche 92 | NC — Not connected |
| Broche 93 | NC — Not connected |
| Broche 94 | NC — Not connected |
| Broche 95 | NC — Not connected |
| Broche 96 | NC — Not connected |
| Broche 97 | NC — Not connected |
| Broche 98 | NC — Not connected |
| Broche 99 | NC — Not connected |
| Broche 100 | EP — Exposed thermal pad - tie to GND |
Applications typiques
USB7056-I/KDX convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour USB7056-I/KDX — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- 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)
Notes de conception
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.
Informations de conformité
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - design should use AEC-Q100 USB hub if specifically automotive-grade qualification is required.
