USB2502-AEZG - 2-Port USB 2.0 Hub Controller | Microchip
料号： USB2502-AEZG ✓ 量产中USB2502-AEZG 概述
A USB hub controller is an interface semiconductor that expands one upstream USB connection into multiple downstream ports. It belongs to the USB interface controller family within the broader hierarchy of interface ICs, USB controllers, semiconductors, and embedded connectivity solutions. The USB2502 manages traffic between an upstream host and two downstream-facing ports while supporting devices that negotiate low-, full-, or high-speed operation. According to the Microchip USB2502 product page, the controller is fully compliant with the USB 2.0 Specification.
The principal feature is integrated two-port USB 2.0 support in one package. Each downstream-facing port can accommodate a USB 2.0 device operating at 1.5 Mb/s, 12 Mb/s, or 480 Mb/s. This mixed-speed capability makes the controller suitable for systems that must connect peripherals with different bandwidth requirements. The verified manufacturer and distributor descriptions also identify full power management with ganged power control, helping coordinate downstream-port power behavior in bus-powered or self-powered designs.
The USB2502-AEZG is supplied as a 36-QFN-EP package identified by DigiKey as 6 x 6 mm. Its package includes an exposed pad, making careful thermal via and copper-pour design important. The operating details visible in the supplied sources include a 3 V to 3.6 V supply range and USB interface functionality, while several electrical, timing, current, and environmental limits remain unavailable in the provided extraction and are therefore identified as data needed rather than estimated.
Typical applications include compact USB hubs, docking stations, industrial USB expansion panels, peripheral connection panels, embedded host systems, and test equipment requiring two downstream USB 2.0 ports. The controller can also bridge high-speed hosts to lower-speed USB devices because each downstream port supports the full USB 2.0 speed set. Designers should still validate hub power budget, enumeration behavior, signal routing, and device-specific host compatibility before production release.
For implementation, follow the manufacturer datasheet for decoupling, upstream and downstream differential-pair routing, crystal or clock requirements, power-gating connections, and exposed-pad thermal management. USB differential pairs should be routed as controlled-impedance, tightly coupled traces over a continuous reference plane, with minimal stubs and avoidance of right-angle transitions. The verified datasheet title identifies the document as DS000002248A, and the exposed pad should be connected according to its land pattern and assembly guidance rather than inferred from distributor package descriptions.
This product page consolidates verified manufacturer and distributor information, exact source prices, package details, speed support, and practical engineering guidance. It also separates verified USB 2.0 capabilities from unverified parameters so procurement and design decisions can be based on traceable evidence.
直接替换替代料： USB2502-AEZG ——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： USB2502-AEZG （相同外形与封装尺寸） ——差异在于 Number of Downstream Ports, Device Type, Package, RoHS Status, Operating Temperature.
USB2512B-AEZG
✅ 直接替换📋 参考替代料（不在目录中）
USB2512BI-AEZG
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →USB2513B-AEZG
✅ 直接替换📋 参考替代料（不在目录中）
USB2514BI-AEZG-TR
✅ 直接替换联系询价
查看数据手册 →USB2422-CP-TR
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →USB2502-AEZG 规格参数
| Device Type | 2-port USB 2.0 hub controller |
| USB Specification | USB 2.0 compliant |
| Number of Downstream Ports | 2 ports |
| High-Speed Data Rate | 480 Mb/s |
| Full-Speed Data Rate | 12 Mb/s |
| Low-Speed Data Rate | 1.5 Mb/s |
| Power Management | Full power management with ganged power control |
| Supply Voltage Range | 3 V to 3.6 V |
| 封装 | 36-QFN-EP (6 x 6 mm) |
| 引脚数量 | 36 pins |
| Exposed Pad | Yes |
| 安装类型 | Surface mount |
| Interface Category | USB interface controller |
USB2502-AEZG 36-qfn-ep (6 x 6 mm) 引脚配置指南
USB2502-AEZG（36-qfn-ep (6 x 6 mm) 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： USB2502-AEZG.
请参阅 数据手册 以查看完整引脚配置。
典型应用
USB2502-AEZG 适用于 6 应用s: Compact USB 2.0 Desktop Hub, Industrial USB Expansion Panel, USB Docking Station, Embedded Host USB Expansion, USB Test and Measurement Adapter, Computer Peripheral Connection Panel.
Compact USB 2.0 Desktop Hub
The USB2502-AEZG fits a compact two-port desktop hub because it integrates two downstream-facing USB ports in a 36-QFN-EP package measuring 6 x 6 mm. According to the Microchip product page, each downstream port supports low-speed devices at 1.5 Mb/s, full-speed devices at 12 Mb/s, and high-speed devices at 480 Mb/s. Place the controller between the host connection and the two external ports, and implement ganged power control according to the manufacturer guidance. This mixed-speed support lets one hub accommodate peripherals with different USB 2.0 capabilities. The 3 V to 3.6 V operating range also aligns with a 3.3 V interface rail, although the enclosure still needs independent protection for exposed user-accessible USB connectors.
推荐
Industrial USB Expansion Panel
The USB2502-AEZG is suitable for an industrial USB expansion panel that converts one host connection into two externally accessible USB 2.0 ports. Its verified support for 480 Mb/s high-speed operation preserves bandwidth for storage and data-acquisition peripherals, while 12 Mb/s and 1.5 Mb/s support allows the same panel to support legacy peripherals. The controller's ganged power-control feature helps coordinate the two downstream ports, while the compact 36-QFN-EP package leaves board area for connectors, protection devices, and power switching. Industrial qualification details, operating-temperature limits, and surge ratings were not present in the supplied extraction and must be checked in the manufacturer datasheet.
推荐
USB Docking Station
The USB2502-AEZG can add two USB 2.0 data ports to a docking station that already provides display, storage, or network connectivity through other controllers. Its downstream ports support the full USB 2.0 speed set, including 480 Mb/s operation for compatible high-speed peripherals and 12 Mb/s or 1.5 Mb/s operation for lower-speed devices. The 36-QFN-EP package is useful where connector spacing is constrained, although exposed-pad copper and thermal vias require careful layout. Ganged power control provides a defined way to manage downstream power, but the dock's complete current budget and USB attach/detach behavior should be validated with the manufacturer application guidance.
推荐
Embedded Host USB Expansion
The USB2502-AEZG is appropriate for an embedded host platform requiring two external USB 2.0 ports without implementing hub logic in an FPGA or larger system-on-chip. The controller provides dedicated hub-controller hardware and supports devices at 1.5 Mb/s, 12 Mb/s, or 480 Mb/s. Placing it between the embedded host's upstream interface and two downstream connectors simplifies the USB topology while preserving high-speed operation for compatible peripherals. Because clocking, enumeration timing, and host-side integration details are not included in the extracted source text, system developers should use the official USB2502 documentation for initialization sequence, firmware support, and board-level constraints.
推荐
USB Test and Measurement Adapter
The USB2502-AEZG can provide two USB 2.0 connections in a compact test or measurement adapter. Both downstream ports support the USB 2.0 speed range, allowing the same instrument to accept a 480 Mb/s high-speed device as well as 12 Mb/s and 1.5 Mb/s peripherals. The 6 x 6 mm 36-QFN-EP package helps preserve space for analog, protection, and connector circuitry. For laboratory equipment, add the protection required for user-accessible ports and review the controller's operating-temperature and power limits from the manufacturer datasheet. Mixed-speed enumeration and simultaneous port activity should also be tested with the intended peripheral set.
推荐
Computer Peripheral Connection Panel
The USB2502-AEZG fits a peripheral connection panel where one upstream cable must feed two downstream USB sockets. The controller's verified 480 Mb/s high-speed capability supports external storage and other high-bandwidth USB 2.0 accessories, while lower-speed operation broadens device compatibility. Its two-port architecture avoids adding a larger multi-channel hub controller when only two ports are required. The package is surface mount, so assembly should include a thermal pad pattern and via arrangement consistent with the land pattern. The verified sources do not state the maximum downstream current, which must be established from the datasheet and the selected port-power-delivery implementation before production.
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推荐产品汇总
工程参考数据： USB2502-AEZG ——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 | USB2512B-AEZG | USB2512BI-AEZG | USB2513B-AEZG | USB2514BI-AEZG | USB2422-CP-TR |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 36-QFN-EP (6 x 6 mm) | 36-QFN-EP (6 x 6 mm) | 36-QFN-EP (6 x 6 mm) | 36-QFN-EP (6 x 6 mm) | 36-QFN-EP (6 x 6 mm) | 36-QFN-EP (6 x 6 mm) |
| Product Type | 2-port USB 2.0 hub controller | USB 2.0 hub controller | USB 2.0 hub controller | 3-channel USB 2.0 controller | 4-channel USB 2.0 hub controller | USB 2.0 hub controller |
关键差异点
- Purpose-built two-port architecture （对比 USB2513B-AEZG)
- Documented mixed-speed support （对比 USB2512B-AEZG)
- Specific ganged power-control capability （对比 USB2514BI-AEZG)
- Smaller channel count for two-port designs （对比 USB2514BI-AEZG)
设计说明
Route the upstream and downstream USB differential pairs as impedance-controlled, tightly coupled traces over a continuous reference plane. The supplied extraction does not provide the target impedance or exact layer stack-up, so use the Microchip USB2502 layout guidance and your fabricator's USB stack-up rather than assuming a generic value. Keep stubs short, avoid right-angle transitions, and place any required termination or protection components close to the controller and connectors.
The 36-QFN-EP package includes an exposed pad, so the pad should be connected to the recommended ground plane with a thermal-via pattern that complies with the manufacturer's land pattern. Package dimensions are verified as 6 x 6 mm, but the exact via count, pad geometry, and maximum power dissipation were not included in the supplied data. Follow the package drawing and assembly land pattern exactly rather than deriving a pad layout from the distributor package label.
Build a downstream-port power budget before selecting switch components, current limiting, and supply topology. The USB2502 supports full power management with ganged power control, but the supplied source does not state maximum port current, inrush limits, or supply-current consumption. These values must come from the manufacturer datasheet. Account for both fast and slow device enumeration transitions so the hub does not cause input-source droop when multiple downstream devices are attached.
Do not treat a shared package family as proof of unconditional drop-in compatibility. USB2513B and USB2514BI variants have different channel counts, while USB2512 and USB2422 variants may differ in power management, clocking, and pin multiplexing. Compare every numbered pin, the exposed-pad connection, electrical limits, and firmware requirements against the target schematic before substituting a released design.
合规信息
No explicit compliance declarations were present in the supplied manufacturer or distributor extraction. Compliance must be confirmed using Microchip's current product page, material declarations, or the manufacturer datasheet.
