USB2512BT-I/M2 2-Port USB 2.0 Hub Controller | Microchip
Teilenummer: USB2512BT-I/M2 ✓ AktivUSB2512BT-I/M2 Übersicht
A USB hub controller is an interface semiconductor that manages traffic between an upstream host and one or more downstream USB devices. In the USB hierarchy, the USB2512BT-I/M2 belongs to the interface-controller category, within USB interface ICs and broader semiconductor solutions. Its two-port topology is useful for compact computers, industrial control panels, test equipment, set-top boxes, printers, and accessory systems where direct host resources for every peripheral would be unavailable.
The controller supports USB 2.0 Hi-Speed operation and is identified by Microchip as a USB interface IC for two-port hub applications. Its 36-terminal SQFN package supports high-density PCB routing and compact board construction. MultiTRAK technology is associated with the Microchip USB251xB controller family, where it is intended to improve data throughput in mixed-speed USB environments that combine USB 2.0 Hi-Speed and lower-speed devices.
The USB2512BT-I/M2 integrates the core hub-control and downstream-port management functions into one device, reducing the component count compared with a discrete USB-routing implementation. Its 6 x 6 mm package requires careful exposed-pad assembly and thermal design. The manufacturer naming identifies this configuration as a two-port USB 2.0 Hi-Speed hub controller, while the M2 package arrangement corresponds to the 36-terminal SQFN form shown in product documentation.
Typical applications include USB port expansion in embedded host systems, industrial operator interfaces, USB-connected test equipment, multifunction peripherals, and compact consumer products. A design can place the hub downstream of a host controller and connect two peripherals to its downstream ports. Port-power management, USB data routing, enumeration, and downstream device attach or detach are handled within the hub-controller function rather than by duplicating host ports.
PCB implementation should prioritize short USB high-speed traces, continuous reference planes, controlled impedance, and a properly designed exposed-pad land pattern. Place decoupling capacitors close to the supply pins and keep high-speed differential routes away from switching nodes and noisy external power regulators. Validate signal integrity, enumeration behavior, cable length, power-switching requirements, and downstream bus-powered load conditions in the final system.
This product overview combines the exact USB2512BT-I/M2 identity, package information, interface role, cross-reference candidates, application guidance, and design considerations into an engineering-focused reference for selecting and implementing this Microchip two-port USB hub controller.
Drop-in-Alternativen für USB2512BT-I/M2 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit USB2512BT-I/M2 (gleiche Bauform und Footprint) – abweichend in Package, Battery Charging Support, Device Type, Product Type, Technology Family.
USB2512BT/M2
✅ Drop-InPreis auf Anfrage
Datenblatt ansehen →USB2512B-I/M2
✅ Drop-InPreis auf Anfrage
Datenblatt ansehen →USB2512BI-AEZG
✅ Drop-InPreis auf Anfrage
Datenblatt ansehen →USB2512BT-I/M2 Technische Daten
| Device Type | 2-port USB 2.0 Hi-Speed hub controller |
| USB Protocol | USB 2.0 |
| USB Data Speed | Hi-Speed |
| Downstream Port Count | 2 ports |
| Upstream Port Count | 1 port |
| Package Type | 36-terminal SQFN |
| Package Dimensions | 6 x 6 mm |
| Terminal Count | 36 terminals |
| Montageart | Surface mount |
| Technology Family | USB251xB with MultiTRAK technology |
| Schnittstellentyp | USB interface IC |
| Exposed Pad | Exposed thermal pad |
USB2512BT-I/M2 6 x 6 mm Pinbelegungsleitfaden
Pinbelegung für USB2512BT-I/M2 (6 x 6 mm-Gehäuse). Pin-Nummerierung, Funktionen und Anschlussdiagramme sind im Herstellerdatenblatt definiert. Entnehmen Sie diesem den genauen Footprint und Lötrichtlinien.
Keine detaillierten Pinbelegungsdaten verfügbar für USB2512BT-I/M2.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
USB2512BT-I/M2 ist geeignet für 6 Anwendungs: Embedded USB Port Expansion, Industrial Control Panel Hub, USB Test and Measurement Equipment, Set-Top Box and Media Accessory, USB Peripheral Connectivity Hub, Portable and Battery-Powered USB Device.
Embedded USB Port Expansion
The USB2512BT-I/M2 fits embedded systems that expose one host USB connection but need to serve two peripherals. Its two-port USB 2.0 Hi-Speed topology consolidates downstream enumeration and traffic management behind one upstream link, reducing the need for a host with two physical USB ports. The 36-terminal, 6 x 6 mm SQFN package also keeps the controller compact enough for space-constrained embedded boards. Designers should place the hub near the external connectors, preserve controlled-impedance USB routing, and validate the complete power budget for both downstream devices.
Empfohlen
Industrial Control Panel Hub
An industrial control panel can use the USB2512BT-I/M2 to connect two USB service devices, configuration adapters, or data-collection accessories through one host controller. Its two-port USB 2.0 Hi-Speed implementation provides a practical balance between throughput, integration, and board area. The industrial-style ordering configuration is appropriate for candidate designs, subject to confirmation of the exact operating-temperature limits. Isolation, surge protection, grounding, and panel-cable behavior must also be evaluated because external USB cables can introduce noise and ESD events.
Empfohlen
USB Test and Measurement Equipment
The USB2512BT-I/M2 is suitable for test instruments that need to expose two USB connections while retaining a single upstream host link. A compact USB hub controller allows the instrument to support a control computer and a peripheral, or two device-under-test channels, without implementing a full host controller internally. USB 2.0 Hi-Speed operation supports common data-acquisition and programming workflows. Keep sensitive analog sections separated from hub routing, provide local decoupling at the controller, and verify enumeration performance across each operating-system and peripheral combination.
Empfohlen
Set-Top Box and Media Accessory
The USB2512BT-I/M2 can add two USB expansion points to a set-top box or compact media accessory. Its two downstream ports can serve storage controllers, keyboards, service adapters, or other peripherals while the upstream port connects to the host processor. The compact SQFN-36 package supports PCB-area reduction, while MultiTRAK technology is intended to maintain throughput in environments containing both Hi-Speed and lower-speed USB devices. Validate cable lengths, downstream power-switching components, and user-facing connector protection against the final enclosure and accessory ecosystem.
Empfohlen
USB Peripheral Connectivity Hub
A multifunction USB peripheral can use the USB2512BT-I/M2 to manage two downstream accessories behind a single upstream connection. This arrangement is useful in printers, scanners, diagnostic tools, and programmable controllers where internal accessories require dedicated USB paths. The controller handles the shared USB 2.0 Hi-Speed topology while conserving space with a 6 x 6 mm package. Firmware must account for the additional downstream enumeration events and maintain stable timing when devices are connected, removed, or placed into suspend at different times.
Empfohlen
Portable and Battery-Powered USB Device
The USB2512BT-I/M2 can expand USB connectivity in a portable device that has limited external connector space. Two downstream USB connections can support charging, data synchronization, or an attached peripheral from a single host connection, provided the downstream power budget is carefully controlled. Because the controller does not eliminate the need for power switching or charging management, those functions must be designed around the two ports. Battery operation also requires attention to quiescent current, suspend behavior, USB bus-powered device limits, and leakage through external protection circuitry.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für USB2512BT-I/M2 – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | USB2512BT/M2 | USB2512B-I/M2 | USB2512BI-AEZG |
|---|---|---|---|---|
| Package | 36-terminal SQFN (6 x 6 mm) | 36-terminal SQFN (6 x 6 mm) | 36-terminal SQFN (6 x 6 mm) | 36-terminal SQFN (6 x 6 mm) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Device Type | 2-port USB 2.0 Hi-Speed hub controller | 2-port USB 2.0 Hi-Speed hub controller | 2-port USB 2.0 Hi-Speed hub controller | 2-port USB 2.0 Hi-Speed hub controller |
| USB Standard | USB 2.0 | USB 2.0 | USB 2.0 | USB 2.0 |
| Downstream Ports | 2 ports | 2 ports | 2 ports | 2 ports |
| Terminal Count | 36 terminals | 36 terminals | 36 terminals | 36 terminals |
| Package Dimensions | 6 x 6 mm | 6 x 6 mm | 6 x 6 mm | 6 x 6 mm |
| Controller Technology | Microchip USB251xB family with MultiTRAK technology | Microchip USB251xB family with MultiTRAK technology | Microchip USB251xB family with MultiTRAK technology | Microchip USB251xB family |
| Ordering Suffix | I/M2 | /M2 | I/M2 | AEZG |
Wichtigste Unterscheidungsmerkmale
- Exact two-port USB 2.0 Hi-Speed hub function (vs. USB2512B-I/M2)
- Package and terminal compatibility (vs. USB2512BT/M2)
- Same-family pin-compatible upgrade path (vs. USB2512BI-AEZG)
Designhinweise
Follow the manufacturer's 36-terminal SQFN land pattern and exposed-pad assembly recommendations exactly. The USB2512BT-I/M2 combines fine-pitch signal terminals with a central thermal and electrical pad, so solder mask definition, paste volume, stencil aperture, and reflow profile all affect yield. Confirm the pad's net assignment and thermal-via strategy against the Microchip package drawing. A copied footprint should not be used unless its terminal numbering and pad dimensions match the M2 package.
Route upstream and downstream USB differential pairs as controlled-impedance traces over a continuous reference plane. Keep the two-port hub close to the connector area, minimize trace and via asymmetry between each differential pair, and avoid stubs, test pads, and right-angle transitions. Separate USB data routing from switching-power nodes and high-current downstream power paths. Validate the complete board with the intended cable lengths and connector stack because inter-pair skew and return-path discontinuities can affect USB 2.0 Hi-Speed signal integrity.
Design the 3.3 V USB supply path and downstream power-switching network around the port-current limits specified in the manufacturer datasheet. Place local decoupling at the controller's supply terminals and use the exposed pad to improve heat transfer into the PCB copper. Two attached devices can load the hub more heavily than one, particularly when both are bus-powered. Evaluate startup inrush, total downstream load, voltage droop, thermal rise, and whether each port requires independent current limiting before finalizing the power architecture.
Do not assume that all similarly named USB2512 order codes are automatically interchangeable. USB2512BT-I/M2, USB2512BT/M2, USB2512B-I/M2, and USB2512BI-AEZG appear in related catalog records, but suffix changes can affect temperature grade, configuration, clock options, or ordering details. Compare the complete ordering-information table, pinout, electrical characteristics, exposed-pad dimensions, and package drawings. Also validate the clock source and its load capacitance before placing the crystal or resonator.
USB hub operation can create repeated data transitions on high-speed differential lines and current pulses on downstream power paths. Keep switching regulators and inductors away from the upstream and downstream data pairs, provide solid ground-plane continuity under the controller, and route noisy power returns without crossing sensitive USB returns. ESD protection near user-facing connectors should use a placement and topology that minimize parasitic capacitance on high-speed data lines. Review radiated and conducted emissions after the enclosure, cable set, and intended peripherals are included in the test configuration.
Compliance-Informationen
The component is associated with a RoHS-compliant product family in comparison information, but an exact compliance declaration for USB2512BT-I/M2 was not identified. No additional RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals claims are made without an exact manufacturer declaration.
