USB2502-HD - 2-Port USB 2.0 Hub Controller | Microchip
부품 번호: USB2502-HD ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $1.5736 | $1.57 |
| 10 | $1.5736 | $15.74 |
| 100 | $1.5736 | $157.36 |
| 500 | $1.5736 | $786.80 |
| 1,000 | $1.5736 | $1,573.60 |
USB2502-HD 개요
A USB hub controller is an interface semiconductor that expands one host USB connection into multiple downstream ports. It belongs to the USB interface controller hierarchy, alongside transceivers, host controllers, and device controllers. The hub manages enumeration, port power, connect and disconnect events, and transaction routing while allowing multiple USB peripherals to share one upstream host port.
The principal feature of USB2502-HD is support for two downstream-facing ports and USB 2.0 operation. Low-speed, full-speed, and high-speed device support provides compatibility with keyboards, mice, storage devices, printers, and other USB peripherals. The controller can attach to a full-speed host or a higher-speed host, with downstream high-speed operation available when the hub is connected in the required high-speed configuration.
Technically, USB2502-HD integrates the hub-control function into a dedicated interface IC rather than requiring a general-purpose processor. According to the Microchip USB2502 datasheet, the device is fully compliant with the Universal Serial Bus Specification Revision 2.0 dated April 27, 2000, including the cited errata. The available verified data does not state operating voltage, clock frequency, transceiver current, temperature range, pin count, or package dimensions.
Typical uses include USB expansion in embedded systems, industrial control equipment, test instruments, printers, storage enclosures, and computer peripherals. The two-port architecture is useful when one host port must connect to two accessories while retaining support for both legacy and high-speed USB devices. Existing board revisions should be checked against the manufacturer package drawings before layout reuse or substitution.
The most important design consideration is that a hub is only one part of the USB channel design. Upstream and downstream routing, connector placement, power-supply capacity, decoupling, ground continuity, and USB signal-integrity layout can determine whether advertised 480 Mb/s operation is reliable. Use the complete Microchip datasheet and its reference circuit for component values, layout geometry, and validation requirements.
This product page consolidates the verified USB2502-HD commercial information, USB speed capabilities, official datasheet link, and sourcing details. It does not invent unavailable electrical or package specifications, and it distinguishes verified USB behavior from values that still require datasheet confirmation.
드롭인 대체품: USB2502-HD — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: USB2502-HD (동일 폼 팩터 및 풋프린트) — 차이점: USB Specification.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
이 제품에는 사용 가능한 드롭인 대체품이 없습니다.
대체품 요청USB2502-HD 사양
| Product Type | 2-port USB 2.0 hub controller |
| Number of Downstream Ports | 2 ports |
| USB Specification | Universal Serial Bus Specification Revision 2.0 |
| Low-Speed Data Rate | 1.5 Mb/s |
| Full-Speed Data Rate | 12 Mb/s |
| High-Speed Data Rate | 480 Mb/s |
| Full-Speed Host Attachment | Supported |
| Full-/High-Speed Host Attachment | Supported |
| Downstream Low-Speed Device Support | Supported on all enabled downstream ports |
| Downstream Full-Speed Device Support | Supported on all enabled downstream ports |
| Downstream High-Speed Device Support | Supported when operating as a high-speed hub |
| Specification Revision Date | April 27, 2000 |
| Referenced Errata | December 7, 2000 and May 28, 2002 |
| 카테고리 | Integrated Circuits (ICs), Interface Controllers |
USB2502-HD standard 핀 구성 가이드
USB2502-HD(standard 패키지)의 핀 구성입니다. 핀 번호, 기능, 연결 다이어그램은 제조사 데이터시트에 정의되어 있습니다. 정확한 풋프린트와 솔더링 지침은 해당 문서를 참조하십시오.
다음에 대한 상세 핀아웃 데이터 없음: USB2502-HD.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
USB2502-HD 적합 용도: 6 애플리케이션s: Embedded USB Port Expansion, Industrial Control Equipment, USB Storage Dock, Test and Measurement Instrument, USB Peripheral Hub, Embedded Data Acquisition Unit.
Embedded USB Port Expansion
USB2502-HD fits an embedded host that needs one upstream USB connection to serve two downstream peripherals. Its two-port hub architecture removes the need to assign separate host-controller resources to simple accessories, while support for 1.5, 12, and 480 Mb/s device classes preserves compatibility across keyboards, mice, storage, and other devices. The implementation must preserve the datasheet's required routing and layout, and the system must verify that power, enumeration, suspend, and resume behavior satisfy the attached devices.
추천
Industrial Control Equipment
USB2502-HD can provide two isolated downstream USB channels in industrial-control products where service technicians need to connect configuration, data-logging, or diagnostic accessories. A full-speed host attachment supports legacy devices, while a high-speed configuration enables peripherals capable of 480 Mb/s operation. Industrial implementation must also account for surge, ESD, grounding, power-loss behavior, and enclosure isolation; those protections are system requirements and are not specified by the verified product data.
추천
USB Storage Dock
USB2502-HD is applicable to a two-device storage dock because it supports high-speed peripherals up to 480 Mb/s while retaining full-speed compatibility. Each downstream port must still have an independent path to the appropriate storage bridge or device controller, and the enclosure must provide suitable connectors, cable routing, and bus-power capability. Actual transfer speed also depends on the storage devices, bridge performance, host scheduling, command queuing, and operating system behavior.
추천
Test and Measurement Instrument
USB2502-HD can expand a test instrument that must accept both high-speed storage and low-speed service peripherals through two downstream USB ports. High-speed support permits storage transfers at rates up to 480 Mb/s, while low-speed support accommodates basic control accessories. Measurement accuracy is not improved by the hub itself, so designers should separate USB data from sensitive analog and high-impedance circuitry and verify ground and return-current paths to prevent hub activity from disturbing measurements.
추천
USB Peripheral Hub
USB2502-HD is suited to compact peripheral hubs where two external USB connections share one upstream host port. The controller supports low-speed, full-speed, and high-speed enabled ports, allowing one product to serve both conventional input devices and faster storage or external interfaces. Mechanical design must keep each port's signal path controlled and provide compliant power. The verified data does not establish downstream port-current limits, so designers must use the complete datasheet and connector power budget before finalizing the hub supply.
추천
Embedded Data Acquisition Unit
USB2502-HD can serve as the USB expansion stage in a portable data-acquisition unit that connects measurement accessories to one embedded host. High-speed downstream operation supports compatible storage or data sources, while full-speed and low-speed support broadens peripheral compatibility. The hub should be placed according to the manufacturer's routing guidance, with attention to analog ground partitioning and connector return paths. Keeping USB routing away from sensitive sensor inputs helps prevent data-link activity from coupling into measurements.
추천
추천 제품 요약
엔지니어링 참조 데이터: USB2502-HD — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 |
|---|---|
| Brand | Microchip Technology |
| Product Type | 2-port USB 2.0 hub controller |
| Number of Downstream Ports | 2 ports |
| Low-Speed Data Rate | 1.5 Mb/s |
| Full-Speed Data Rate | 12 Mb/s |
| High-Speed Data Rate | 480 Mb/s |
| Upstream Host Attachment | Full-speed or full-/high-speed host |
| USB Compliance | Universal Serial Bus Specification Revision 2.0 |
| Verified Starting Price | $1.5736 as of 2026-10-22 |
주요 차별점
- Verified two-port USB 2.0 hub architecture (vs USB2513B-AEZC)
- Broad downstream speed support (vs PI3USB102GZLEX)
- Full-speed host compatibility (vs Generic USB hub alternatives)
설계 노트
Use the complete Microchip USB2502 datasheet and reference layout rather than reconstructing differential USB routing from general guidance. Preserve the specified upstream and downstream trace geometry, layer transitions, connector locations, reference plane continuity, and device placement. Because the verified search data does not supply trace-length or impedance values, those numbers must be obtained from the official documentation before PCB release.
Design the downstream power path from the actual attached-device budget rather than assuming every port can receive maximum bus current simultaneously. Confirm the controller's exact supply range, port-current behavior, capacitor values, and sequencing requirements in the datasheet. Estimated: if two devices together demand 500 mA, the upstream source and distribution network must support at least that load plus controller and conversion losses; this is an engineering check, not a manufacturer rating.
Do not treat a USB hub controller as a USB-to-serial bridge, host controller, or standalone powered USB hub. The part is specifically a two-port USB 2.0 hub controller. Many apparent replacements differ in package, pinout, clock requirements, power architecture, or port count, and a broad functional match does not establish drop-in compatibility. Verify every pin and the package drawing before schematic capture or PCB substitution.
USB 2.0 high-speed signals require continuous reference planes and controlled differential routing; discontinuities can create reflections that impair enumeration or intermittent peripheral operation. Keep connector and routing transitions consistent with the manufacturer guidance, maintain low-impedance ground returns, and place required support components close to their associated pins. Validate the completed board with rise-time, impedance, and compliance testing appropriate to the product's USB classification.
규정 준수 정보
The supplied verified web results do not contain exact-ordering-code compliance statements. Obtain current material-declaration records from Microchip or the authorized distributor before making a regulatory claim.
