USB2422-CP - Low-Power 2-Port USB 2.0 Hub Controller | Microchip Technology
料号： USB2422-CP ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
USB2422-CP 概述
A USB hub controller is an interface IC within the broader USB interface-controller and semiconductor hierarchy. In an embedded system, the upstream port connects the hub to a host controller, while each downstream port connects external peripherals such as storage, keyboards, communications modules, or service interfaces. USB2422-CP acts as the transaction translator and hub-management element between those connections, helping the host system organize USB traffic across two ports. Its support for Full-Speed and Hi-Speed operation makes it relevant to legacy USB 2.0 embedded designs rather than modern USB 3.x or USB4 systems.
The principal verified feature set includes a 2-port USB 2.0 hub configuration, single transaction translator operation, upstream Hi-Speed and Full-Speed attachment capability, and downstream Low-Speed, Full-Speed, and Hi-Speed support. Microchip describes the device as low power, which is valuable in embedded equipment where USB expansion must not dominate the system power budget. The 24-QFN package provides a compact surface-mount footprint, but its exposed thermal and electrical requirements must be handled according to the manufacturer datasheet.
The controller is positioned between a USB host and downstream USB peripherals. When configured as a Hi-Speed hub, the upstream link and compatible downstream links can use USB 2.0 Hi-Speed operation; when used as a Full-Speed-only hub, the design avoids requiring Hi-Speed operation. Device attachment, removal, enumeration, and power-management behavior must be evaluated against the USB host software and the electrical requirements of the connected peripherals. The verified web data does not provide current unit pricing, stock status, lead time, detailed pin names, or all electrical timing and current limits, so those values are not inferred here.
Typical applications include embedded instrumentation, industrial control panels, compact USB expansion boards, peripheral consolidation, and USB connectivity in systems that already use a USB 2.0 host controller. A hub may be useful when a processor exposes one host port but the enclosure requires two external connections. The design should verify connector protection, power switching, cable length, chassis grounding, and host compatibility. The manufacturer datasheet is the authoritative source for pin assignments, electrical limits, configuration registers, and implementation details.
Use the USB2422-CP when the existing PCB is designed around its 24-QFN footprint and the application needs a compact two-port USB 2.0 hub controller. Confirm package pin compatibility, operating conditions, and USB host requirements before treating any substitute as a drop-in replacement.
This page combines verified manufacturer descriptions, distributor package information, datasheet references, application context, and procurement guidance. It distinguishes documented facts from missing parameters and avoids inventing prices, pin assignments, electrical limits, or replacement parts.
直接替换替代料： USB2422-CP ——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： USB2422-CP （相同外形与封装尺寸） ——差异在于 Number of Downstream Ports, Package, Product Type, RoHS Status.
快速对比工具——选择替代料号进行并排对比：
USB2512B-I/M2
✅ 直接替换✓ 有现货
$2.49 / 个
查看数据手册 →USB2422-CP 规格参数
| Product Type | USB 2.0 hub controller |
| Number of Downstream Ports | 2 ports |
| Transaction Translator Architecture | Single transaction translator |
| Upstream Hi-Speed Support | Supported |
| Upstream Full-Speed Support | Supported |
| Full-Speed-Only Configuration | Supported |
| Downstream Low-Speed Support | Supported |
| Downstream Full-Speed Support | Supported |
| Downstream Hi-Speed Support | Supported when configured as a Hi-Speed hub |
| USB Interface | USB 2.0 |
| 封装 | 24-QFN (4x4 mm) |
| 安装类型 | Surface mount |
| USB Upstream Port Count | 1 upstream connection |
| USB Downstream Port Count | 2 downstream connections |
| RoHS 状态 | unknown |
| REACH Status | unknown |
USB2422-CP 24-qfn (4x4 mm) 引脚配置指南
USB2422-CP（24-qfn (4x4 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： USB2422-CP.
请参阅 数据手册 以查看完整引脚配置。
典型应用
USB2422-CP 适用于 6 应用s: Embedded USB Expansion, Industrial Control Panel Connectivity, USB Perimeter Consolidation, Data Acquisition Accessory Hub, Compact Instrument USB Interface, USB Connectivity in Battery-Powered Products.
Embedded USB Expansion
The USB2422-CP fits embedded systems that need to expand one host connection into two downstream USB ports without adding a full-size host controller. Its upstream link can operate as a Hi-Speed and Full-Speed connection, while downstream devices can use Low-Speed, Full-Speed, or Hi-Speed when the hub is configured for Hi-Speed operation. The compact 24-QFN package helps preserve board area in embedded equipment. The principal design checks are host-controller compatibility, cable routing, connector protection, and compliance with the electrical limits in the Microchip datasheet.
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Industrial Control Panel Connectivity
USB2422-CP is applicable when an industrial control panel needs a compact two-port USB hub for service interfaces, data acquisition accessories, or configuration peripherals. The hub keeps the embedded system focused on one upstream USB route while providing two external connectors. Low-Speed and Full-Speed devices are supported, and Hi-Speed downstream operation is available when the hub is configured accordingly. Industrial qualification still requires checking the operating-temperature range, ESD strategy, power budget, grounding, and enclosure cable requirements, none of which are fully specified in the verified snippets.
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USB Perimeter Consolidation
The USB2422-CP can consolidate two downstream peripheral connections into a compact embedded hub implementation. This is useful in instruments and appliances where a processor has limited USB host ports but users need multiple service or data peripherals. The controller supports Low-Speed, Full-Speed, and conditionally Hi-Speed downstream devices, allowing a design to mix device classes where host software and electrical limits permit. Designers should validate enumeration behavior, cable length, connector shield termination, and power-enable sequencing in the final system.
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Data Acquisition Accessory Hub
For data-acquisition equipment, USB2422-CP can provide two downstream access paths for measurement modules, calibration interfaces, or maintenance adapters. A Hi-Speed-capable upstream configuration can support higher-bandwidth devices when both ends of the link meet the relevant requirements, while Full-Speed-only operation remains available for lower-speed peripherals. The device does not replace the acquisition engine or signal conditioning; it provides USB connectivity and hub translation. Power budget, bus-powered-device limits, ESD protection, and host software support must be verified in the manufacturer documentation.
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Compact Instrument USB Interface
USB2422-CP is suitable for compact test and measurement instruments that need to expose two USB connections from a constrained embedded board. One upstream connection links to the instrument host, while the two downstream ports serve peripherals such as configuration adapters, memory devices, or service interfaces. The 24-QFN (4x4 mm) package supports compact placement, but exposed-pad layout and thermal design must follow the datasheet. USB 2.0 speed compatibility should be checked against every peripheral and host, and no substitute should be selected solely on port count.
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USB Connectivity in Battery-Powered Products
The low-power USB2422-CP can serve battery-powered or portable embedded products that need controlled USB expansion without implementing a larger hub subsystem. Its documented low-power positioning is valuable when USB activity must coexist with limited energy budgets, although exact current consumption and standby behavior were not supplied in the verified data. Battery products should therefore measure the complete USB subsystem power budget, including PHY loading, regulator losses, pull resistors, and downstream-device behavior. Connector and cable ESD protection should be selected separately from the hub controller.
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推荐产品汇总
工程参考数据： USB2422-CP ——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 |
|---|---|---|
| Brand | Microchip Technology | Microchip Technology |
| Package | 24-QFN (4x4 mm) | 24-QFN (4x4 mm) - supplied comparison data does not independently confirm footprint |
| USB Interface | USB 2.0 | USB 2.0 |
| Downstream Ports | 2 | 2 |
| Transaction Translator | Single transaction translator | Multiple transaction translator, or MultiTRAK |
关键差异点
- Single-translator architecture （对比 USB2512B)
- Documented upstream mode selection （对比 USB2512B)
- Compact package for embedded designs （对比 USB2512B)
设计说明
Route the USB upstream and downstream differential pairs as controlled-impedance USB traces, following the Microchip datasheet and the connector and cable implementation guidelines available for the design. Keep the hub controller and USB connector placement short where practical, maintain continuous reference planes, and avoid splitting the return path beneath the differential pair. Because the verified data does not provide the complete pinout or recommended PCB stack-up, do not infer pad assignments or trace dimensions from the package name alone.
Verify the complete USB power budget before enabling downstream ports, including the hub controller, regulators, pull networks, cable losses, and attached devices. The verified material describes USB2422-CP as low power but does not state operating current, standby current, or downstream current limits. Check those values in the official datasheet, then select protection and switching components that account for inrush, short-circuit behavior, and the USB host's available power.
Do not treat USB2422-CP as a USB 3.x, USB4, or USB-C controller based only on the physical connector used in the end product. The verified controller is a USB 2.0 hub controller, and downstream Hi-Speed operation is conditional on the proper hub configuration. Also avoid selecting a generic two-port USB IC as a substitute: USB2512B has a different multiple-translator architecture, and the supplied data does not prove pin compatibility.
合规信息
The supplied verified web data does not include RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements for USB2422-CP. Compliance must be confirmed from the current manufacturer product documentation or distributor declarations.
