USB2641I-HZH-02 - 2-Port USB 2.0 Hub Controller | Microchip
料号： USB2641I-HZH-02 ✓ 量产中USB2641I-HZH-02 概述
A USB hub controller is an interface IC that expands one host USB connection into multiple downstream ports while providing power management and device enumeration. A flash media controller adds read and write access to flash-memory cards, allowing one controller to combine USB hub expansion with removable-storage connectivity. Together, these functions place the USB2641I-HZH-02 within the interface IC, USB interface controller, and USB expansion-controller hierarchy.
The controller supports USB 2.0 Hi-Speed operation and provides two downstream hub ports alongside its flash-media interface. Its industrial-temperature designation supports use in environments where broader temperature coverage than a standard commercial-temperature controller is required. The integrated design reduces the need for separate hub and flash-reader components, making it useful in multifunction peripherals, docking systems, industrial equipment, and embedded computing platforms.
According to the manufacturer data sheet for the USB2640i and USB2641i family, the USB2641I-HZH-02 can sustain average transfer rates exceeding 35 MB/s. Its integrated architecture is intended to provide high-performance flash-media operation while the hub function handles multiple USB devices. This combination makes board-level design more compact than a discrete implementation using separate media-reader and hub controllers.
Typical applications include two-port USB docking stations, industrial data-acquisition equipment, multifunction printers, embedded systems requiring flash-card access, and USB expansion panels. The controller is especially relevant when a design needs both removable-storage connectivity and multiple USB ports without allocating separate controller devices or expanding the host system’s internal USB resources.
PCB implementation requires careful routing of USB 2.0 differential pairs, correct impedance control, suitable power-plane distribution, and compliance with the layout guidance in the manufacturer data sheet. Designers should also confirm the exact pin assignments, exposed-pad connection, crystal or clock requirements, and media-support configuration in the pin-description and reference-design sections before releasing a production layout.
This page combines the manufacturer’s USB2641i family information with package details, application guidance, a parameter comparison, and practical selection considerations. It is intended to help engineers determine whether the USB2641I-HZH-02 fits a compact USB 2.0 hub-plus-card-reader design and to identify the closest documented drop-in choices without overlooking firmware, temperature-grade, or footprint constraints.
直接替换替代料： USB2641I-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： USB2641I-HZH-02 （相同外形与封装尺寸） ——差异在于 Flash Media Interface, Mounting Type, Product Type.
USB2641I-HZH-02-CAG
✅ 直接替换📋 参考替代料（不在目录中）
USB2641-HZH-02
✅ 直接替换联系询价
查看数据手册 →USB2641I-HZH-02 规格参数
| Product Type | USB 2.0 flash media controller and 2-port USB hub controller |
| USB Version | USB 2.0 Hi-Speed |
| Hub Port Count | 2 downstream ports |
| Average Sustained Transfer Rate | Greater than 35 MB/s |
| 封装 | 48-QFN, 7 x 7 mm |
| 引脚数量 | 48 pins |
| Flash Media Interface | Integrated host-to-flash media card reader and writer interface |
| Hub Architecture | Integrated 2-port Hi-Speed USB 2.0 hub |
| Data-Sheet Document Number | DS00001948C |
| Data-Sheet Length | 59 pages |
| Order Code Package | 48-pin QFN, lead-free |
| RoHS 状态 | RoHS compliant |
| Lead-Free Status | Lead-free package |
| Firmware Revision Code | 02 |
| 安装类型 | Surface-mount QFN |
| USB Connector Data Rate | Hi-Speed USB 2.0 |
| Media Transfer Function | Integrated flash-card reader and writer capability |
| Manufacturer Product Family | USB2640i and USB2641i |
USB2641I-HZH-02 48-pin qfn, lead-free 引脚配置指南
USB2641I-HZH-02（48-pin qfn, lead-free 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： USB2641I-HZH-02.
请参阅 数据手册 以查看完整引脚配置。
典型应用
USB2641I-HZH-02 适用于 6 应用s: Industrial Data-Acquisition Equipment, Two-Port USB Docking Station, Multifunction Printer and Card Reader, Embedded Flash-Access System, USB Expansion Panel, Self-Service Terminal.
Industrial Data-Acquisition Equipment
The USB2641I-HZH-02 fits industrial acquisition systems that must collect data through flash media while exposing two USB 2.0 ports to external peripherals. Its integrated flash-media controller removes the need for a separate reader interface, while the two-port Hi-Speed hub expands one host connection. Average sustained transfer rates exceeding 35 MB/s support efficient movement of large logged datasets when compatible media and host hardware are used. The industrial-temperature order code is appropriate for equipment expected to operate outside standard commercial conditions, subject to confirmation of the full temperature limits. USB differential routing, grounding, and media compatibility should be reviewed against the manufacturer data sheet before layout release.
推荐
Two-Port USB Docking Station
The USB2641I-HZH-02 supports docking stations that combine two external USB 2.0 connections with removable flash-card access. One upstream USB connection can feed the controller while two downstream ports serve keyboards, mice, printers, service tools, or storage devices. Integrating the flash-media interface avoids allocating another host USB function or placing a separate media reader beside the hub controller. The two-port architecture is particularly useful in compact industrial and commercial docking products where connector count is limited. Designers should use the manufacturer reference circuitry for power-gate, current-limit, and downstream-port behavior, and should verify enumeration behavior across every attached device combination.
推荐
Multifunction Printer and Card Reader
A printer or multifunction peripheral can use the USB2641I-HZH-02 to provide both card-reader access and additional USB connectivity. Flash-media users benefit from sustained transfer rates exceeding 35 MB/s, which is useful for moving photographs, service logs, or configuration files, while the two downstream ports can support a control interface and accessories. Consolidating these functions into one controller helps reduce board area compared with separate hub and media-reader ICs. The implementation should reserve suitable connector placement, card-detection mechanics, media-format support, and USB power budgets in the mechanical and electrical design. Firmware configuration should be validated for the card formats and user experience required by the finished device.
推荐
Embedded Flash-Access System
The USB2641I-HZH-02 is suitable for embedded systems that require removable flash media as a local storage or update medium while retaining two USB 2.0 expansion ports. The integrated reader/writer path can support deployment files, logs, or configuration transfer without requiring a separate host-side card reader. Because the device combines USB expansion and media access, it is useful in compact controllers, service panels, and edge-computing products with limited connector space. Engineers should confirm supported flash media, card detection, write-protection behavior, and filesystem expectations in the system firmware. USB signal integrity and media connector grounding remain important when enclosure cables, adapter boards, or long peripheral runs are involved.
推荐
USB Expansion Panel
The USB2641I-HZH-02 can serve as the core controller in an industrial USB expansion panel that turns one upstream host connection into two downstream ports and adds flash-media access. This architecture is useful for service consoles, test systems, and production equipment where operators need to attach several peripherals and exchange removable media. The two-port Hi-Speed hub reduces host-controller demand, while the integrated media interface eliminates a separate controller footprint. For a panel design, include port overcurrent protection, controlled bus power, robust connector retention, and clear enclosure access to the media slot. Validate enumeration and hot-plug behavior across the supported peripheral set and ensure the final PCB respects the manufacturer’s USB routing guidance.
推荐
Self-Service Terminal
Self-service terminals can use the USB2641I-HZH-02 to combine card-based user data transfer with external USB peripherals. The flash-media interface supports rapid exchange of logs, credentials, configuration files, or media content, while two downstream USB 2.0 ports permit attachment of a printer, authentication device, or service adapter. Sustained media rates exceeding 35 MB/s help reduce transaction time when compatible cards are used. Because public-facing terminals may experience temperature variation and frequent insertion cycles, the specific component grade, connector mechanics, and media endurance strategy should be validated for the installation environment. Use the manufacturer pin and layout guidance to maintain signal integrity around the USB and media interfaces.
推荐
推荐产品汇总
工程参考数据： USB2641I-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-CAG | USB2641-HZH-02 |
|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-QFN (7x7) | 48-QFN (7x7) | 48-QFN (7x7) |
| Product Function | Flash media controller and 2-port USB 2.0 hub | Flash media controller and 2-port USB 2.0 hub | Flash media controller and 2-port USB 2.0 hub |
| USB Version | USB 2.0 Hi-Speed | USB 2.0 Hi-Speed | USB 2.0 Hi-Speed |
| Hub Port Count | 2 downstream ports | 2 downstream ports | 2 downstream ports |
| Average Sustained Transfer Rate | Greater than 35 MB/s | Greater than 35 MB/s | Greater than 35 MB/s |
| Temperature Designation | Industrial temperature | Industrial temperature order family | Industrial-temperature suffix not shown |
| Pin Count | 48 pins | 48 pins | 48 pins |
关键差异点
- Combines flash-media access with a two-port USB hub （对比 USB2640-HZH-02)
- Documented functional-equivalent order code （对比 USB2641I-HZH-02-CAG)
- Industrial-temperature order designation （对比 USB2641-HZH-02)
- Two-port Hi-Speed expansion from one upstream host connection （对比 USB2640-HZH-02)
设计说明
Route USB 2.0 differential pairs as impedance-controlled, tightly coupled traces with minimal stubs, vias, and right-angle transitions. Keep the controller, connector, protection components, and bypass capacitors positioned to support the return path and minimize loop area. Follow the USB2640i/USB2641i data-sheet layout reference because the integrated hub and flash-media interfaces require careful treatment of both USB signal and power-distribution paths.
Plan upstream and downstream USB power distribution independently, including the protection and switching components required by the final port loads. Place local high-frequency bypass capacitance close to the controller’s supply pins and preserve low-resistance connections between the exposed pad, ground plane, and supply-return structure. Review the manufacturer’s reference design for recommended capacitor values, power sequencing, and downstream-port power management before finalizing the rail network.
Do not treat USB2641I-HZH-02 and USB2641-HZH-02 as unconditional equivalents merely because both provide the same hub and flash-media functions. The former carries an industrial-temperature designation, while the latter does not show the “I” in its order code. Likewise, verify the media formats, firmware revision, package suffix, and pin assignments for USB2641I-HZH-02-CAG before using it as a production substitute.
Validate USB enumeration, full-speed and Hi-Speed operation, flash-card insertion, and simultaneous hub traffic in the final system. Media connectors, card cages, cables, and long downstream traces can introduce discontinuities that are not apparent from the controller specifications alone. Use the manufacturer’s reference design and data-sheet layout guidance as the baseline, then verify eye behavior, impedance, radiated emissions, and stability in the completed enclosure.
合规信息
The manufacturer USB2640i/USB2641i order-information document identifies the HZH package as lead-free and RoHS compliant. No other compliance claims were established for this exact order code.
