USB2641-HZH-02 - 2-Port USB 2.0 Hub Controller | Microchip
料号： USB2641-HZH-02 ✓ 量产中USB2641-HZH-02 概述
A USB hub controller is an interface integrated circuit that manages multiple USB ports connected to one upstream host connection. A flash media interface controller extends this USB connectivity to removable or embedded flash media. Together, these functions place the USB2641 within the hierarchy of USB interface controller, USB hub controller, interface IC, and broader semiconductor device categories. This combination allows one device to organize USB ports and expose compatible flash-media storage through a host controller.
The primary features include support for Hi-Speed USB 2.0, two downstream hub ports, a flash-media card interface, a 48-QFN package, and operation from a 3.3 V supply as identified for this device. The integrated design reduces the number of separate interface components required in equipment that needs both USB hub expansion and flash-media access. Its 7 mm by 7 mm package also supports compact desktop, embedded, and portable equipment layouts.
Microchip positions the USB2641 as a cost-effective and power-efficient controller for systems combining a USB host port with flash media. The controller architecture supports programmable device identification and configurable USB descriptors, while the hardware design checklist provides guidance for customizable vendor, product, device, and serial-number information. These capabilities support product identification, customized USB enumeration behavior, and controlled implementation of a multi-function peripheral.
Typical applications include USB card readers, multifunction desktop peripherals, printers, set-top equipment, industrial data-acquisition systems, and embedded systems that require both USB hub expansion and flash-media connectivity. The two-port hub function is useful when several USB peripherals must share one host connection. The flash-media interface allows compatible storage to be presented to the host through the same controller.
PCB implementation requires careful attention to the USB data paths, power distribution, ground-plane continuity, and exposed-pad thermal management described in the manufacturer design checklist. Place differential USB traces with continuous reference planes and avoid unnecessary branch paths. Follow the manufacturer pin-description and layout guidance when assigning power, ground, USB data, clock, and configuration signals on the 48-QFN footprint.
This product page combines the manufacturer product description, exact distributor package identification, official hardware-design guidance, compatible same-family references, and practical implementation considerations. It supports faster part selection while preserving the package, interface, and application distinctions needed to determine whether the USB2641-HZH-02 fits a new design.
直接替换替代料： USB2641-HZH-02 ——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： USB2641-HZH-02 （相同外形与封装尺寸） ——差异在于 Product Type.
USB2641I-HZH-02
✅ 直接替换📋 参考替代料（不在目录中）
USB2640-HZH-02
✅ 直接替换联系询价
查看数据手册 →USB2641-HZH-02 规格参数
| Product Type | USB 2.0 hub and flash-media interface controller |
| USB Specification | USB 2.0 Hi-Speed |
| Number of USB Hub Ports | 2 ports |
| Flash Media Interface | Supported |
| 电源电压 | 3.3 V |
| Package Type | 48-QFN |
| Package Dimensions | 7 mm x 7 mm |
| 安装类型 | Surface mount |
| 引脚数 | 48 pins |
| Programmable Device Identification | Configurable vendor, product, device, and serial-number information |
| Product String Descriptors | Configurable |
USB2641-HZH-02 7 mm x 7 mm 引脚配置指南
USB2641-HZH-02（7 mm x 7 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： USB2641-HZH-02.
请参阅 数据手册 以查看完整引脚配置。
典型应用
USB2641-HZH-02 适用于 6 应用s: USB Flash Media Card Reader, Multifunction Desktop Peripheral, Industrial Data-Acquisition Unit, USB Storage Hub, Set-Top Media Gateway, Embedded Service Console.
USB Flash Media Card Reader
The USB2641-HZH-02 fits a compact card-reader design because it combines a USB host-side flash-media interface with two Hi-Speed USB 2.0 hub ports. The integrated architecture can reduce the need for separate media-controller and hub devices while presenting compatible flash storage to a host. Its 48-QFN package occupies only 7 mm by 7 mm, making it practical for desktop accessories and multifunction peripherals. Designers should confirm the required media formats, connector arrangement, supply routing, and exposed-pad layout against the manufacturer documentation.
推荐
Multifunction Desktop Peripheral
A multifunction desktop peripheral can use the USB2641-HZH-02 to consolidate storage access and peripheral connectivity in one host interface. Two USB 2.0 Hi-Speed hub ports allow peripherals to share an upstream connection, while the flash-media function supports compatible card access. This integration is valuable when the product must limit board area and component count. Use short USB routes, provide clean 3.3 V power, and follow the manufacturer hardware design checklist for the 48-QFN exposed-pad implementation.
推荐
Industrial Data-Acquisition Unit
The USB2641-HZH-02 can support an industrial data-acquisition unit that needs local media storage alongside multiple USB peripherals. Its two Hi-Speed USB 2.0 hub ports provide connectivity for keyboards, service tools, or external instruments, while the integrated flash-media interface supports compatible removable or embedded storage. For industrial deployments, compare the standard ordering code with USB2641I-HZH-02 and verify the required temperature range, isolation strategy, grounding, and enclosure-related thermal conditions.
推荐
USB Storage Hub
The USB2641-HZH-02 is appropriate for a storage-oriented hub where one upstream USB connection must support two downstream devices and flash-media access. The two-port Hi-Speed USB 2.0 architecture simplifies host connectivity, while the integrated media interface adds storage functionality without requiring a separate controller. The 3.3 V supply and compact 7 mm by 7 mm 48-QFN package support space-conscious designs. Confirm media-format requirements and bus-power limits before finalizing port protection and connector implementation.
推荐
Set-Top Media Gateway
A set-top or media gateway can use the USB2641-HZH-02 to manage service peripherals and local flash media through one USB interface device. Two Hi-Speed USB 2.0 ports support external controls or accessories, and the media interface can serve compatible storage in platforms requiring removable-media access. Because set-top equipment often has tight board-area and thermal constraints, the 48-QFN footprint is beneficial. Verify startup behavior, power-budget limits, device descriptors, and flash-media compatibility with the manufacturer documentation.
推荐
Embedded Service Console
The USB2641-HZH-02 supports an embedded service console that needs both maintenance-device access and flash-media connectivity. The two USB 2.0 hub ports can provide a controlled interface for configuration tools or diagnostic adapters, while the flash-media interface supports compatible field-media workflows. Its small 7 mm by 7 mm package leaves routing space for the surrounding embedded system. Confirm operating-temperature requirements and compare USB2641I-HZH-02 when an industrial-temperature ordering option is appropriate.
推荐
推荐产品汇总
工程参考数据： USB2641-HZH-02 ——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 | USB2641I-HZH-02 | USB2640-HZH-02 |
|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-QFN (7x7) | 48-QFN (7x7) | 48-QFN (7x7) |
| Mounting Type | Surface mount | Surface mount | Surface mount |
| Number of Pins | 48 pins | 48 pins | 48 pins |
关键差异点
- Integrated dual-function USB interface （对比 USB2514I-HZH)
- Two-port hub configuration （对比 USB2514I-HZH)
- Compact 48-QFN implementation （对比 USB2514I-HZH)
设计说明
Use the Microchip USB2641 hardware design checklist as the primary layout reference for the 48-QFN implementation. Route USB differential pairs with continuous reference planes, minimize stubs and layer changes, and place connector or ESD-protection components in a way that avoids impedance discontinuities. Maintain uninterrupted ground-plane return beneath the high-speed pairs and place decoupling capacitance close to the associated supply pins.
Assign supply and ground nets according to the manufacturer pin-description table before releasing PCB artwork. The 7 mm by 7 mm 48-QFN footprint requires careful exposed-pad connection, adequate thermal-via distribution, and compatible solder-mask and paste design. Follow the manufacturer land-pattern dimensions rather than deriving them from a generic QFN footprint, because pad and mask details affect assembly yield.
Do not treat USB2640-HZH-02 or USB2641I-HZH-02 as an automatic substitution without checking pin names, electrical limits, configuration behavior, and operating-temperature requirements. A matching package only establishes mechanical compatibility. USB2640-HZH-02 may differ in flash-media functionality, while USB2641I-HZH-02 is distinguished by its industrial-temperature ordering option.
Design the 3.3 V rail for both controller demand and the attached USB loads while observing all USB current limits in the manufacturer documentation. Keep local high-frequency bypass capacitance close to the device and provide low-impedance connections between the supply, ground, and exposed-pad structures. Review startup current, bus-powered scenarios, and external-load switching effects before finalizing rail capacity.
合规信息
Compliance status was not stated in the cited manufacturer product page or distributor component records. Confirm RoHS, REACH, lead-free, halogen-free, conflict-minerals, and AEC-Q100 documentation for the selected ordering code before production release.
