USB2514BT-I/M2 4-Port USB 2.0 Hub Controller | Microchip
料号： USB2514BT-I/M2 ✓ 量产中USB2514BT-I/M2 概述
A USB hub controller is a semiconductor that manages one upstream USB connection and multiple downstream ports, allowing peripheral devices to share an embedded host controller. Within the product hierarchy, USB2514BT-I/M2 is a USB interface IC, USB hub controller, and configurable USB 2.0 interface component used in systems requiring four downstream USB connections.
The controller provides four downstream ports, USB 2.0 high-speed operation, and a 3.3 V operating supply. Its MultiTRAK architecture is designed to support efficient mixed-speed USB traffic, while low-power characteristics make the device appropriate for embedded equipment where every milliampere and every PCB area matter. The 36-pin SQFN package supports compact, high-density PCB layouts.
Temperature, supply-current, transceiver, and configuration details should be confirmed against the Microchip USB2514BT-I/M2 datasheet before release to production. In particular, board designers must preserve the recommended power, ground, crystal or clock, USB data-line, and configuration connections rather than treating the controller as a generic four-port USB switch. The exact electrical limits depend on the selected USB speed and operating mode.
Typical uses include USB-to-serial bridges, embedded test equipment, industrial control panels, medical-device peripherals, multifunction printers, external storage enclosures, and compact embedded computing systems. A four-port hub can reduce the need for multiple external sockets while centralizing enumeration and traffic management in one controller.
Layout is the primary practical concern. Place USB differential traces as short and impedance-controlled as possible, maintain continuous ground references, and follow the manufacturer’s recommended decoupling and crystal or clock network. Keep noisy power converters and high-current peripherals away from the USB data region to limit EMI and signal-integrity problems.
This product page combines the verified manufacturer-family information, exact orderable part identification, package details, compliant sourcing channel, practical design guidance, and a focused review of same-package alternatives. It is intended to help engineers identify the correct USB 2.0 hub controller and validate PCB and firmware requirements before committing a design to production.
直接替换替代料： USB2514BT-I/M2 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： USB2514BT-I/M2 （相同外形与封装尺寸） ——差异在于 Package, Product Type, Number of Downstream Ports, Device Type, Interface Type.
USB2514B-I/M2
✅ 直接替换联系询价
查看数据手册 →USB2514B/M2
✅ 直接替换联系询价
查看数据手册 →USB2514BT/M2
✅ 直接替换联系询价
查看数据手册 →USB2512BI-AEZG
✅ 直接替换联系询价
查看数据手册 →USB2514BT-I/M2 规格参数
| Product Type | USB 2.0 hub controller |
| Upstream USB Port Count | 1 port |
| Downstream USB Port Count | 4 ports |
| USB High-Speed Data Rate | 480 Mb/s |
| Supported USB Device Speeds | Low-speed, full-speed, and high-speed |
| 工作电源电压 | 3.3 V |
| Controller Architecture | MultiTRAK multi-transaction translator |
| Power Class | Low-power configurable hub controller |
| Package Type | 36-pin SQFN |
| Package Dimensions | 6 x 6 mm |
| 安装类型 | Surface mount |
| Shipping Package | Tray |
| RoHS 状态 | Compliant |
USB2514BT-I/M2 tray 引脚配置指南
USB2514BT-I/M2（tray 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： USB2514BT-I/M2.
请参阅 数据手册 以查看完整引脚配置。
典型应用
USB2514BT-I/M2 适用于 6 应用s: Embedded USB Test and Measurement Equipment, Industrial Control and Automation Panels, Medical and Diagnostic Peripherals, USB-to-Serial and Protocol Bridges, Multifunction Printers and External Storage, Portable Computing and Accessory Hubs.
Embedded USB Test and Measurement Equipment
The USB2514BT-I/M2 fits embedded test equipment that must expose several peripheral connections through one host USB interface. Its four downstream ports allow instruments, storage adapters, and service interfaces to share a USB 2.0 high-speed connection while the controller manages low-, full-, and high-speed traffic through MultiTRAK transaction translation. Running from 3.3 V and using a 36-pin 6 x 6 mm SQFN also supports compact, high-density instrument electronics. Place the hub close to the external connectors, route the differential pairs as short impedance-controlled traces, and keep the controller away from switching power stages to reduce EMI coupling into USB data lines.
推荐
Industrial Control and Automation Panels
USB2514BT-I/M2 can serve an industrial control panel that accepts configuration cables, touch controllers, data loggers, and service devices through a shared USB interface. Four downstream ports reduce the number of physical connectors required on the enclosure while preserving USB 2.0 high-speed capability for compatible devices. The controller’s 3.3 V supply and compact SQFN-36 footprint fit space-constrained embedded electronics, and MultiTRAK supports the mixed traffic commonly produced by legacy low-speed peripherals alongside high-speed devices. Use a controlled ground plane, isolate switching regulators from the USB data region, and verify thermal performance across the complete industrial temperature range specified for the production configuration.
推荐
Medical and Diagnostic Peripherals
The USB2514BT-I/M2 is suitable for medical-device enclosures that need a single host connection to multiple service peripherals, data-acquisition modules, or configuration interfaces. Four USB 2.0 downstream ports provide a controlled expansion path without adding separate host controllers, while support for low-, full-, and high-speed devices accommodates a broad range of embedded accessories. Its 3.3 V operation and 36-pin SQFN package leave board area for isolated interfaces, protection circuitry, and patient-safety isolation. Keep externally accessible USB connectors behind the appropriate protection network, maintain separation from sensitive analog circuitry, and confirm every medical-system requirement against the final device configuration rather than relying only on the hub-controller datasheet.
推荐
USB-to-Serial and Protocol Bridges
USB2514BT-I/M2 can support multi-interface bridges that expose serial, configuration, or legacy peripheral connections to a USB host. Four downstream ports allow one embedded controller to organize several logical USB links, while MultiTRAK transaction translation supports mixed-speed devices commonly found in industrial and legacy systems. The 36-pin 6 x 6 mm SQFN package is practical for compact adapter boards, and the 3.3 V supply integrates with embedded power trees. Preserve short USB data paths, provide correct downstream-port power switching, and verify device-class drivers because electrical equivalence between hub controllers does not guarantee identical operating-system enumeration or application behavior.
推荐
Multifunction Printers and External Storage
USB2514BT-I/M2 is appropriate for multifunction printers, scanners, and external storage products that require several USB connections behind one host-facing port. Its four downstream ports support USB 2.0 high-speed operation at 480 Mb/s and compatibility with low- and full-speed peripherals, allowing one controller to handle a scanner, card reader, printer interface, and configuration connection. The 3.3 V operating supply and compact SQFN-36 footprint support internal board placement. Design the downstream power paths for the combined load, use dedicated protection near externally accessible connectors, and keep high-current storage circuitry away from the USB differential pairs to minimize radiated emissions and recovery errors.
推荐
Portable Computing and Accessory Hubs
USB2514BT-I/M2 fits compact accessory hubs that add four USB 2.0 ports to a host computer, embedded processor, or portable peripheral. Low-, full-, and high-speed support allows the same controller to serve legacy input devices and high-speed external media, while its 36-pin SQFN package minimizes connector-adjacent board area. MultiTRAK architecture supports efficient mixed-speed operation, and 3.3 V operation supports integration with portable-device power systems. Keep the controller and connector placement consistent with USB routing guidance, maintain continuous return paths beneath differential traces, and validate plug-and-play behavior across every device class intended for the accessory.
推荐
推荐产品汇总
工程参考数据： USB2514BT-I/M2 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | USB2514B-I/M2 | USB2514B/M2 | USB2514BT/M2 | USB2512BI |
|---|---|---|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SQFN-36 (6 x 6 mm) | SQFN-36 (6 x 6 mm) | SQFN-36 (6 x 6 mm) | SQFN-36 (6 x 6 mm) | SQFN-36 (6 x 6 mm) |
| Function | 4-port USB 2.0 high-speed hub controller | 4-port USB 2.0 high-speed hub controller | 4-port USB 2.0 high-speed hub controller | 4-port USB 2.0 high-speed hub controller | Programmable USB interface controller |
| USB Standard | USB 2.0 high-speed | USB 2.0 high-speed | USB 2.0 high-speed | USB 2.0 high-speed | USB 2.0 high-speed |
| Operating Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3 V to 3.6 V |
| Programmability | Not indicated | Not indicated | Not indicated | Not indicated | Programmable |
关键差异点
- Closest verified no-modification replacement （对比 USB2514B-I/M2)
- No measurable primary-parameter difference （对比 USB2514B/M2)
- Same four-port function in the same package （对比 USB2514BT/M2)
设计说明
Route each USB differential pair as a tightly coupled pair over a continuous ground plane. Match the upstream and downstream traces to the impedance required by the board stack-up, minimize stubs and vias, and keep the hub controller positioned near the USB connector or internal port-routing region. Place ESD protection near externally accessible connectors and route its return path directly to ground so surge current does not pass through controller or signal-ground paths.
Design the 3.3 V hub supply and downstream power paths independently. The controller supply requires local high-frequency decoupling, while attached USB devices may draw substantially more current than the controller itself. Size the upstream regulator for the complete downstream load, place bulk capacitance near the protected port outputs, and verify that port-current limiting remains compatible with the device classes intended to operate on the bus.
Separate switching-regulator power stages, high-current drive circuitry, and external connector interfaces from the USB data region. Keep the exposed-pad connection and ground vias consistent with the manufacturer’s land pattern, and avoid routing USB signals directly beneath noisy power inductors. If radiated-emission testing identifies switching-node coupling, revisit component placement and shielding before adding filtering that might impair USB signal integrity.
Do not treat a shared package and matching port count as proof of complete interchangeability. Before replacing USB2514BT-I/M2 with USB2514B-I/M2, USB2514B/M2, USB2514BT/M2, or USB2512BI, compare configuration options, crystal or clock requirements, resistor strapping, firmware or personality support, electrical limits, and downstream-port behavior in the manufacturer documentation. Confirm all 36 pins and the exposed-pad connection on the final schematic.
合规信息
RoHS compliance is stated for the exact USB2514BT-I/M2 listing. The controller is an interface IC and is not identified as an AEC-Q100-qualified automotive device.
