USB2514I-HZH - USB 2.0 HS 4-Port Hub Controller | Microchip
MPN: USB2514I-HZH ✓ نشطUSB2514I-HZH نظرة عامة
A USB hub controller is an interface integrated circuit within the broader USB interface-controller hierarchy. It manages traffic between an upstream USB host and multiple downstream USB ports, allowing peripheral devices such as keyboards, storage adapters, communications equipment, and human-interface devices to share one host port. A four-port USB 2.0 implementation is especially relevant to embedded systems, industrial control panels, test benches, and compact peripheral systems that require more attachment points than a host controller exposes directly.
The verified product data highlights three defining characteristics: USB 2.0 high-speed operation, four downstream hub ports, and a 48-pin VQFN exposed-pad package. The USB2514I-HZH is also identified as an industrial-temperature-rated part. Microchip describes the related USB251xB family as cost-effective and power-efficient while using MultiTRAK technology to support mixed-speed USB data throughput. These features distinguish it from basic four-port repeater devices by placing port management, signaling, and USB connectivity in one dedicated controller.
The part operates from 3.3 V and supports low-speed, full-speed, and high-speed USB devices, allowing a mixed-speed peripheral set to share the same hub. That mixed-speed capability is useful when a design includes legacy USB devices alongside high-speed peripherals. The exposed-pad package also provides a defined thermal and electrical land pattern that must be connected according to the manufacturer layout guidance rather than treated as an unused pin.
Typical applications include industrial USB expansion, embedded instrumentation, laboratory data-acquisition systems, USB-to-serial equipment, and peripheral hubs for host computers or embedded controllers. In these systems, the hub can consolidate several external functions behind one upstream USB connection while the controller manages enumeration, downstream port behavior, and data traffic. The USB2422-CP-TR and USB2517I-JZX are related USB interface components available through XAIPART for broader design evaluation.
Designers should verify the complete pin assignment, electrical limits, crystal or clock requirements, port-current budget, and exposed-pad connection against the manufacturer datasheet before layout release. The verified distributor information confirms a 48-pin VQFN exposed-pad package and tray packaging, but it does not provide the complete pinout, operating-temperature interval, power dissipation, or recommended external-component values.
This product record combines verified manufacturer and distributor information with an explicit comparison of available same-package alternatives, commercial pricing, and application guidance. Missing technical values are marked rather than guessed, allowing engineers to distinguish confirmed USB2514I-HZH characteristics from details that still require direct datasheet verification.
بدائل مباشرة لـ USB2514I-HZH — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع USB2514I-HZH (نفس عامل الشكل والبصمة) — يختلف في Package, Product Type.
USB2514-HZH
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←USB2513-HZH
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
USB2514B-AEZG
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
USB2514I-HZH المواصفات
| Product Type | USB 2.0 four-port hub controller |
| USB Specification | USB 2.0 |
| Maximum USB Speed | High Speed, 480 Mb/s |
| Supported USB Speeds | Low Speed, Full Speed, High Speed |
| Downstream Port Count | 4 ports |
| جهد التغذية التشغيلي | 3.3 V |
| العلبة | 48-pin VQFN with exposed pad |
| Package Family | VQFN-48 QFN surface-mount family |
| نوع التركيب | Surface Mount |
| Delivery Packaging | Tray |
| Temperature Grade | Industrial temperature rated |
| Controller Technology | MultiTRAK technology |
دليل تكوين أطراف USB2514I-HZH vqfn-48 qfn surface-mount family
تكوين الأطراف لـ USB2514I-HZH (حزمة vqfn-48 qfn surface-mount family). يتم تعريف ترقيم الأطراف والوظائف ومخططات التوصيل في ورقة البيانات الفنية من الشركة المصنعة. راجعها للحصول على البصمة الدقيقة وإرشادات اللحام.
لا تتوفر بيانات مفصلة لمخطط التوصيلات لـ USB2514I-HZH.
راجع ورقة البيانات للحصول على تكوين الأطراف الكامل.
التطبيقات النموذجية
USB2514I-HZH مناسب لـ 6 التطبيقs: Industrial USB Port Expansion, Embedded Test and Measurement Hub, USB-to-Serial Adapter Expansion, Industrial Control Panel, Compact Peripheral Expansion Hub, Networked USB Gateway.
Industrial USB Port Expansion
USB2514I-HZH fits industrial equipment that needs four USB 2.0 attachment points from one upstream host connection. Its verified industrial-temperature rating makes it more appropriate for that environment than an unrated general-purpose controller, while support for low-speed, full-speed, and high-speed devices allows legacy and modern peripherals to coexist. The controller manages the downstream USB hub function and mixed-speed traffic rather than acting as a simple passive splitter. Designers should budget the total downstream load, provide the verified 3.3 V supply, and use the exposed-pad land pattern required by Microchip.
موصى به
Embedded Test and Measurement Hub
USB2514I-HZH can provide a convenient four-port connection point for laboratory instruments, data-acquisition modules, and service equipment connected to one embedded host. USB 2.0 high-speed support accommodates data-intensive peripherals, while low-speed and full-speed support remains useful for legacy control devices. Its mixed-speed capability, identified through Microchip’s USB251xB family information and MultiTRAK technology, simplifies a multi-device test bench without requiring separate host ports. The exact enumeration behavior, power limits, and external clock requirements must still be taken from the manufacturer documentation before implementation.
موصى به
USB-to-Serial Adapter Expansion
USB2514I-HZH is suitable for industrial adapters that expose several USB-to-serial functions to a host computer. The four downstream ports support a mix of control, communications, and data-acquisition peripherals, while the 3.3 V operating supply integrates cleanly with contemporary embedded hardware. The hub controller’s role is to arbitrate USB traffic and downstream device connections, allowing one upstream cable to reach several serial adapters. Engineers must verify the aggregate downstream current budget, thermal performance of the exposed pad, and enumeration compatibility with the selected USB-to-serial devices before finalizing the board.
موصى به
Industrial Control Panel
USB2514I-HZH can serve a compact control panel requiring multiple USB peripherals behind a single host interface. The four-port arrangement accommodates keyboards, pointing devices, service interfaces, and data adapters without consuming every host USB port. Its verified industrial-temperature classification is relevant to factory equipment, and support for all three USB 2.0 speed classes allows operational and legacy peripherals to share the hub. The controller should be paired with careful downstream power budgeting, short high-quality USB routing, and an exposed-pad layout that follows the manufacturer’s thermal and grounding recommendations.
موصى به
Compact Peripheral Expansion Hub
USB2514I-HZH fits compact external accessories that need to present several USB connections through one host port. The device provides USB 2.0 high-speed operation, four downstream ports, and a 48-pin VQFN exposed-pad package suitable for high-density surface-mount assemblies. Mixed-speed support makes the design adaptable to storage, communications, input, and legacy peripherals without requiring four independent host resources. Product developers should confirm enclosure heat dissipation, connector-current limits, host compatibility, and cable routing, because the verified data does not provide the controller’s complete operating-temperature interval or maximum downstream-current specification.
موصى به
Networked USB Gateway
USB2514I-HZH can serve as the USB-facing side of a gateway that exposes serial, communications, or storage peripherals to a network processor. Four downstream ports provide room for several device classes, and USB 2.0 high-speed support benefits data-heavy gateways while low-speed and full-speed support covers control devices. The confirmed 3.3 V supply and VQFN exposed-pad package support compact mixed-signal layouts, but the hub controller still requires independent power-path design for downstream loads. Verify protocol conversion requirements, host or OTG integration, grounding, and firmware enumeration behavior in the official documentation.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ USB2514I-HZH — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | USB2514-HZH | USB2513-HZH | USB2514B-AEZG |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-pin VQFN with exposed pad | 48-pin VQFN family package | 48-pin QFN package | 48-pin QFN exposed-pad package |
| Product Type | USB 2.0 hub controller | USB 2.0 hub controller | USB 2.0 hub controller | USB 2.0 high-speed hub controller |
| Maximum USB Speed | High Speed | High Speed | High Speed | High Speed |
أبرز الفروقات
- Four-port hub configuration (مقابلUSB2513-HZH)
- Industrial-temperature identification (مقابلUSB2514-HZH)
- Same-family USB 2.0 high-speed support (مقابلUSB2514B-AEZG)
ملاحظات التصميم
Budget the 3.3 V rail and downstream USB loads separately. The verified sources confirm a 3.3 V operating supply but do not provide the maximum aggregate downstream current or controller dissipation, so do not assign upstream switch or connector current limits from general USB assumptions alone. Confirm the current budget, protection method, inrush behavior, and capacitor requirements in Microchip’s official documentation before selecting the board power supply.
Treat the VQFN exposed pad as an electrical and thermal connection, not as an optional mechanical feature. Follow the manufacturer land pattern, pin-one orientation, pad dimensions, solder-mask policy, and paste recommendation. Place USB routing and supporting components away from the exposed-pad region while preserving the required thermal copper, and verify the exact package drawing for USB2514I-HZH rather than relying only on a family comparison page.
Keep USB differential routing short, symmetric, and referenced to a continuous ground plane. Match upstream and downstream pair geometry, minimize stubs and test pads, and route connector protection close to the corresponding physical ports. Because the verified search snippets do not include the complete pin table or recommended layout values, validate signal names, impedance targets, isolation spacing, and crystal or clock placement against the official USB251xB family datasheet.
Do not assume that related USB251xB MPNs are register-identical merely because their package family matches. Microchip’s family document states that device IDs and other register defaults may differ. For USB2514-HZH, USB2513-HZH, or USB2514B-AEZG substitutions, check firmware support, port count, clock configuration, power behavior, pin names, exposed-pad connection, and any USB-IF compliance-by-similarity requirements.
معلومات الامتثال
The retrieved manufacturer and distributor snippets do not explicitly confirm the target part's RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than being inferred from the broader product family.
