USB4640-HZH-03 - 480Mbps USB 2.0 Hub Controller | Microchip
料号： USB4640-HZH-03 ✓ 量产中USB4640-HZH-03 概述
A USB hub controller is an interface integrated circuit that manages one upstream host connection and multiple downstream USB ports. The USB4640 combines this USB 2.0 hub function with flash media control in one device, reducing the component count in systems that need both USB peripheral expansion and removable flash storage. Its HSIC host interface provides a two-pin high-speed connection rather than relying on a conventional USB physical-layer host port.
Key features include a 480Mbps HSIC 1.0-compliant upstream port, USB 2.0 downstream hub operation, flash media control, and support for I2C, serial, SPI, and USB interfaces. Integrated functions include port power-switch control, port-status monitoring, programmable signal drive, an internal regulator, ESD protection, overcurrent protection, and power-on reset. These functions support a compact implementation where external host logic and USB physical routing remain the primary board-level concerns.
The controller combines an HSIC-to-USB bridge with downstream hub-management logic and flash media interface control. Programmable signal drive provides flexibility for board-level USB routing and signal conditioning, while internal power management and port monitoring reduce the amount of external supervision circuitry. ESD and overcurrent protection address two common risks at exposed USB ports: electrostatic discharge from connected accessories and excessive downstream current.
Typical applications include multifunction printers, set-top boxes, personal computers, GPS equipment, cellular phones, and embedded systems that expose USB storage to a host. The integrated flash reader is particularly useful where a compact device must accept flash media while also presenting one or more USB ports for peripherals such as keyboards, service interfaces, or removable storage.
PCB implementation should follow the USB4640 Hardware Design Checklist, including correct HSIC routing, compliant USB data and power distribution, controlled impedance where required, and the manufacturer-specified input and output capacitance. Firmware revision and configuration must also be checked because the order code includes the internal ROM firmware revision designation.
This page combines the manufacturer specifications, package and interface characteristics, application guidance, design checks, and a same-footprint family comparison. It helps engineers identify whether the USB4640-HZH-03 fits a USB 2.0 hub, flash-reader, printer, set-top-box, or HSIC host design while highlighting the points that must be confirmed before substitution.
直接替换替代料： USB4640-HZH-03 ——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： USB4640-HZH-03 （相同外形与封装尺寸）.
USB4640I-HZH-03
✅ 直接替换联系询价
查看数据手册 →USB4640-HZH-03 规格参数
| Product Type | USB 2.0 hub and flash media controller |
| USB Standard | USB 2.0 |
| Maximum Data Rate | 480 Mbps |
| Upstream Interface | 2-pin HSIC 1.0-compliant interface |
| 电源电压 | 3.3 V |
| Supported Interfaces | I2C, serial, SPI, and USB |
| 封装 | 48-QFN (7 x 7 mm) |
| 安装类型 | Surface Mount |
| Package Material Compliance | Lead-free and RoHS compliant |
| Port Power Switch Control | Supported |
| Port Status Monitoring | Supported |
| Programmable Signal Drive | Supported |
| Internal Regulator | Supported |
| ESD Protection | Supported |
| 过流保护 | Supported |
| Power-On Reset | Supported |
USB4640-HZH-03 lead-free and rohs compliant 引脚配置指南
USB4640-HZH-03（lead-free and rohs compliant 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： USB4640-HZH-03.
请参阅 数据手册 以查看完整引脚配置。
典型应用
USB4640-HZH-03 适用于 6 应用s: Multifunction Printer USB Interface, Set-Top Box Media Hub, Embedded USB Storage Hub, Personal Computer USB Expansion, GPS and Mobile Accessory Interface, Industrial USB Service Interface.
Multifunction Printer USB Interface
The USB4640-HZH-03 fits multifunction printers that need both a high-speed host connection and USB peripheral ports. Its 480Mbps HSIC upstream interface provides a compact two-pin connection to an HSIC-enabled controller, while the USB 2.0 hub function manages downstream device connections. Integrated port-status monitoring and power-switch control help coordinate attached peripherals. In a printer, the same IC can also manage flash media used for firmware, job data, or configuration storage, reducing the need for separate hub and media-controller components. The board must follow the USB4640 Hardware Design Checklist for HSIC routing and exposed USB-port protection.
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Set-Top Box Media Hub
The USB4640-HZH-03 is appropriate for a set-top box that must expose USB 2.0 connectivity while also supporting flash media. The 480Mbps HSIC upstream interface offers a compact link to an HSIC-capable host processor, and the integrated flash controller serves the device's media-access requirements without requiring a separate interface IC. Its internal regulator, power-on reset, port monitoring, ESD protection, and overcurrent protection help consolidate USB infrastructure in a compact consumer-electronics design. Firmware revision must be selected to match the boot media and device configuration expected by the set-top-box software.
推荐
Embedded USB Storage Hub
The USB4640-HZH-03 suits embedded storage appliances that connect removable USB media and other peripherals to an HSIC-enabled host. Its two-pin HSIC upstream interface supports USB 2.0 operation at 480Mbps while reducing host-side connector routing requirements. Downstream port power-switch control, status monitoring, and overcurrent protection support safe management of connected storage devices, while programmable signal drive provides control for board-level USB routing. The flash media function can provide a separate local media path in systems that support both USB peripherals and locally attached flash storage.
推荐
Personal Computer USB Expansion
The USB4640-HZH-03 can support compact personal-computer or accessory designs that require an HSIC-enabled host interface, downstream USB 2.0 ports, and flash media access. The 480Mbps upstream rate matches USB 2.0 high-speed operation, while the integrated hub and flash controller reduce board area and component count. Its overcurrent-protection and port-status functions are useful when downstream devices can request substantial bus current. The host processor must provide the HSIC side and compatible firmware, and the PCB designer should follow the manufacturer's checklist for trace geometry, power delivery, and USB connector routing.
推荐
GPS and Mobile Accessory Interface
The USB4640-HZH-03 is suitable for GPS equipment and mobile accessories that need a compact USB interface with media-card functionality. The 3.3 V controller combines an HSIC upstream port with USB 2.0 hub management and flash media control, allowing a host processor to share external USB resources while accessing local flash media. Programmable signal drive, internal regulation, ESD protection, and overcurrent protection support a practical embedded implementation. Product designers should verify the supported media formats, firmware revision, connector arrangement, and power budget before assigning USB4640 functions in a battery-powered or vehicle-mounted system.
推荐
Industrial USB Service Interface
The USB4640-HZH-03 can serve as the USB service and data interface of a compact industrial controller. A 480Mbps HSIC upstream connection supports host-to-controller communication, while downstream USB 2.0 ports permit service tools, removable media, or field-upgrade devices to connect. Integrated ESD protection, overcurrent handling, port monitoring, and power-switch control are important when service connectors are accessible during installation or maintenance. Because industrial temperature qualification is not stated in the available documentation, the selected order code must be checked against the system's environmental requirements before deployment.
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推荐产品汇总
工程参考数据： USB4640-HZH-03 ——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 | USB4640I-HZH-03 |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Package | 48-QFN (7 x 7 mm) | 48-QFN (7 x 7 mm), same package |
| Product Type | USB 2.0 hub and flash media controller | USB 2.0 hub and flash media controller |
| Maximum Data Rate | 480 Mbps | 480 Mbps |
| Upstream Interface | 2-pin HSIC 1.0-compliant | HSIC high-speed interface |
| Supply Voltage | 3.3 V | 3.3 V |
| Supported Interfaces | I2C, serial, SPI, and USB | I2C, serial, SPI, and USB |
| Integrated Protection | ESD protection and overcurrent protection | ESD protection and overcurrent protection |
| Firmware Revision Code | 03 | 03 |
关键差异点
- Combines HSIC hub control with flash media control （对比 USB4640I-HZH-03)
- Two-pin HSIC upstream connection （对比 USB4640I-HZH-03)
- Integrated USB port infrastructure （对比 USB4640I-HZH-03)
设计说明
Implement the upstream HSIC connection as a controlled-impedance, short, tightly coupled pair and follow the USB4640 Hardware Design Checklist for device placement and trace geometry. Keep the HSIC route away from switching supplies, high-current LED drivers, and antenna keep-out regions. Confirm trace widths, spacing, reference plane continuity, and connector or test-point locations against the checklist rather than deriving them from generic USB routing guidance.
Design the 3.3 V supply path for both the controller and all enabled downstream port loads, including the current required by attached devices and the USB4640 itself. Use the overcurrent-protection and port power-switch functions only within their rated operating limits. Place local high-frequency decoupling at the supply pins according to the manufacturer layout guidance and keep the path from external power sources to USB ports short, wide, and physically separated from sensitive HSIC traces.
Do not substitute the USB4640-HZH-03-TR order code for USB4640-HZH-03 without confirming the physical packing format. The suffix can identify tape-and-reel ordering rather than a different functional device. Conversely, USB4640I-HZH-03 has the same documented package but must be checked for firmware, device revision, temperature grade, and supported media behavior before being treated as a drop-in replacement.
合规信息
The Microchip USB4640/USB4640i datasheet identifies the 48-pin QFN HZH package as lead-free and RoHS compliant. No specific REACH, AEC-Q100, halogen-free, or conflict-minerals statement is identified for this order code.
