USB2641I-HZH-02 - 2-Port USB 2.0 Hub Controller | Microchip
MPN： USB2641I-HZH-02 ✓ 啟用中USB2641I-HZH-02 概覽
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.
直接替換替代品，適用於 USB2641I-HZH-02 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： USB2641I-HZH-02 （相同外形與佔位） — 差異在於 Flash Media Interface, Mounting Type, Product Type.
USB2641I-HZH-02-CAG
✅ 直接替換📋 參考替代品（不在目錄中）
USB2641-HZH-02
✅ 直接替換聯絡詢價
查看資料表 →USB2641I-HZH-02 規格
| 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 |
| 封裝 | 48-QFN, 7 x 7 mm |
| 腳位數 | 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 狀態 | RoHS compliant |
| Lead-Free Status | Lead-free package |
| Firmware Revision Code | 02 |
| 安裝類型 | 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 腳位配置指南
USB2641I-HZH-02（48-pin qfn, lead-free 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： USB2641I-HZH-02.
請參閱 資料表 以查看完整腳位配置。
典型應用
USB2641I-HZH-02 適用於 6 應用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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
推薦產品摘要
工程參考資料，適用於 USB2641I-HZH-02 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | 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 |
主要差異化特點
- Combines flash-media access with a two-port USB hub (對比USB2640-HZH-02)
- Documented functional-equivalent order code (對比USB2641I-HZH-02-CAG)
- Industrial-temperature order designation (對比USB2641-HZH-02)
- Two-port Hi-Speed expansion from one upstream host connection (對比USB2640-HZH-02)
設計說明
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.
合規資訊
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.
