USB2642T-I/ML - USB 2.0 Hub and Card Controller | Microchip
MPN: USB2642T-I/ML ✓ فعالUSB2642T-I/ML نمای کلی
A USB hub controller is an interface IC that expands one upstream USB connection into multiple downstream ports while managing USB traffic and attached-device power. A flash media card controller adds read/write access to removable flash storage through supported media interfaces. Combined, the USB2642 belongs to the broader USB interface controller hierarchy, where USB bus interfacing, port expansion, and storage-device connectivity are consolidated into one controller.
The principal feature is integration: two USB 2.0 downstream ports and flash-media reader/writer functionality share one device rather than requiring separate hub and card-reader controllers. The manufacturer datasheet identifies USB 2.0 high-speed operation, support for eMMC, and sustained flash transfer rates exceeding 35 MB/s. The available part also lists I2C, SPI, and USB interfaces, providing configuration and connectivity options for embedded host systems.
The USB2642 architecture is intended to place a USB host interface, downstream-port control, flash-media access, and supporting digital interfaces in one surface-mount IC. Its 48-QFN package provides a compact 7 mm × 7 mm footprint, but the exposed thermal pad requires careful PCB layout and adequate copper for heat dissipation. The -I ordering designation identifies the industrial -40°C to +85°C operating range shown in the comparison data.
Typical uses include multifunction printers, set-top boxes, digital media systems, industrial HMI panels, and compact embedded USB systems that need both peripheral expansion and flash-card access. In such systems, the controller can connect storage media to an existing USB host while presenting two downstream USB ports for peripherals, reducing component count relative to separate controllers.
The primary design consideration is power and signal integrity. Layout must preserve USB differential-pair routing, provide the decoupling and exposed-pad thermal structure required by the datasheet, and account for downstream-port current requirements. Designers should also verify card-format support, host-driver compatibility, firmware configuration, and connector protection before committing the USB2642T-I/ML to a new design.
This page consolidates verified distributor pricing, package and interface details, manufacturer documentation, and a practical assessment of the limited directly verifiable drop-in alternatives. It also distinguishes confirmed USB2642 family variants from broader functional equivalents that cannot be represented as pin-compatible replacements without additional board-level verification.
جایگزین‌های drop-in برای USB2642T-I/ML — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای USB2642T-I/ML (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, RoHS Status, Product Type, Flash Media Interface.
USB2642T/ML
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←USB2642-I/ML
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←USB2642/ML
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←USB2642T-I/ML مشخصات
| Product Type | USB 2.0 high-speed hub and flash media card controller |
| USB Standard | USB 2.0 compliant |
| USB Operating Speed | Low-speed, full-speed, and high-speed |
| Downstream USB Port Count | 2 ports |
| Maximum Flash Media Transfer Rate | Over 35 MB/s sustained |
| Supported Flash Media | eMMC and other manufacturer-supported flash media formats |
| نوع رابط | Controller Interface |
| Peripheral Interfaces | I2C, SPI, and USB |
| ولتاژ تغذیه | 3.3 V |
| محدوده دمای کاری | -40°C to +85°C |
| بسته‌بندی | 48-QFN, 7 mm × 7 mm |
| Package Pin Count | 48 pins |
| Exposed Pad | Yes |
| نوع نصب | Surface Mount |
| وضعیت RoHS | Compliant |
| Device Classification | CMOS specialized interface controller |
| Lead-Free Status | Yes |
راهنمای پیکربندی پین USB2642T-I/ML 48 pins
پیکربندی پین برای USB2642T-I/ML (پکیج 48 pins). شماره‌گذاری پایه‌ها، عملکردها و نمودارهای اتصال در دیتاشیت سازنده تعریف شده است. برای footprint دقیق و دستورالعمل‌های لحیم‌کاری به آن مراجعه کنید.
داده پین‌آوت تفصیلی موجود نیست برای USB2642T-I/ML.
به دیتاشیت برای پیکربندی کامل پین‌ها.
کاربردهای معمول
USB2642T-I/ML مناسب است برای 6 کاربردs: Industrial Human-Machine Interface, Multifunction Printer and Media Hub, Set-Top Box Media Connectivity, Digital Media and Storage Adapter, Embedded USB Data Acquisition System, Secure Network Appliance with USB Administration.
Industrial Human-Machine Interface
The USB2642T-I/ML fits an industrial HMI that needs both peripheral connectivity and removable or embedded storage. Its two USB 2.0 downstream ports can support keyboards, scanners, or service interfaces, while the flash-media controller provides access to eMMC with sustained transfer rates exceeding 35 MB/s. The verified -40°C to +85°C range aligns with temperature-controlled factory equipment. Designers should reserve exposed-pad copper, maintain short USB routing, and verify Windows or Linux host-driver compatibility before production.
پیشنهادی
Multifunction Printer and Media Hub
A multifunction printer can use the USB2642T-I/ML to combine USB device connectivity with flash-media handling in one 48-QFN controller. The two downstream USB 2.0 ports provide expansion for status displays, scanners, or card-reader accessories, while supported flash formats can be accessed by the host. The controller’s sustained flash rate above 35 MB/s supports responsive document and media transfers. Layout work should preserve impedance-controlled USB traces, follow the exposed-pad thermal pattern, and include appropriate connector protection.
پیشنهادی
Set-Top Box Media Connectivity
The USB2642T-I/ML is suitable for a set-top box that must expose USB peripherals while supporting local flash storage. Two USB 2.0 downstream ports can serve external controllers, storage adapters, or service peripherals, and the integrated flash interface supports eMMC with sustained rates above 35 MB/s. Integrating both functions can reduce board area compared with separate controllers. The design must confirm media-format support, operating-system drivers, USB current limits, and heat removal from the QFN exposed pad.
پیشنهادی
Digital Media and Storage Adapter
USB2642T-I/ML can implement a compact dual-purpose media adapter by exposing two USB 2.0 ports and connecting supported flash media to a USB host. The flash-media interface sustains transfer rates above 35 MB/s, while the hub function supports external peripherals on one controller. Its 7 mm × 7 mm QFN package helps limit board area. Engineers should verify every required flash format and file system, validate host compatibility, and provide ESD protection at externally accessible connectors.
پیشنهادی
Embedded USB Data Acquisition System
The USB2642T-I/ML can support embedded data-acquisition equipment that stores files locally while accepting USB-connected instruments or service interfaces. Two downstream USB 2.0 ports permit simultaneous peripheral use, and the integrated flash interface supports eMMC storage with sustained transfer rates above 35 MB/s. The industrial -40°C to +85°C range suits controlled industrial environments. Design validation should include USB signal-integrity review, grounding and surge protection, media endurance planning, and thermal verification at maximum data traffic.
پیشنهادی
Secure Network Appliance with USB Administration
USB2642T-I/ML can add local storage and administrative connectivity to a compact network appliance. The two downstream USB 2.0 ports may support recovery media, security keys, or service peripherals, while eMMC access provides a local operating-system or configuration volume at rates exceeding 35 MB/s. Its industrial temperature range supports use in protected indoor or industrial-edge equipment. The implementation should protect USB ports from physical abuse, isolate noisy supplies, follow high-speed routing rules, and validate security policies for removable media.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای USB2642T-I/ML — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | USB2642T/ML | USB2642-I/ML | USB2642/ML |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-QFN (7x7) | 48-QFN (7x7) | 48-QFN (7x7) | 48-QFN (7x7) |
| Product Type | USB 2.0 hub and flash media card controller combination | USB 2.0 hub and flash media card controller combination | USB 2.0 flash media controller with high-speed USB hub | USB 2.0 flash media controller with high-speed USB hub |
| USB Standard | USB 2.0 compliant | USB 2.0 compliant | USB 2.0 compliant | USB 2.0 compliant |
| Downstream USB Ports | 2 ports | 2 ports | 2 ports | 2 ports |
| Maximum Sustained Flash Transfer Rate | Over 35 MB/s | Over 35 MB/s | Over 35 MB/s | Over 35 MB/s |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Ordering Designation Difference | T-I industrial ordering | T ordering differs from T-I; 0°C confirmed range difference | I ordering differs from T-I; 0°C confirmed range difference | No grade suffix differs from T-I; 0°C confirmed range difference |
تفاوت‌های کلیدی
- Hub and flash-media functions are integrated in one controller (در مقابلUSB2642T/ML)
- Verified industrial temperature coverage (در مقابلUSB2642/ML)
- Compact high-speed interface integration (در مقابلUSB2642-I/ML)
یادداشت‌های طراحی
Route each USB high-speed differential pair as a controlled-impedance pair over a continuous reference plane, minimize stubs and vias, and follow the USB 2.0 layout guidance in the Microchip datasheet. Place decoupling capacitors close to the associated supply pins and keep the USB PHY and flash-media routing away from noisy switching nodes. Because the USB2642T-I/ML supports high-speed operation, discontinuities or incorrect return-path geometry can degrade enumeration reliability even when the schematic is correct.
Use the exposed thermal pad as specified in the manufacturer package drawing and connect it to the appropriate ground plane with a full, low-impedance thermal-via array. Avoid placing the controller beside a high-temperature converter without a thermal-design margin. Validate the final board under maximum flash-media traffic and downstream-port loading, since sustained controller and USB power activity can create a temperature rise not represented by a no-load calculation.
Separate or carefully decouple the analog, digital, and USB-related supply paths as directed by the manufacturer datasheet. Verify downstream-port current budgets, inrush behavior, capacitor tolerances, and the regulator’s operating range under worst-case bus loading. Do not assume that two advertised USB ports can supply their maximum permitted current simultaneously; the design must follow the controller’s specified power-distribution and port-current requirements.
Do not approve an apparent USB2642 family substitute solely from the ordering suffix. Compare the complete 48-pin signal map, exposed-pad geometry, operating-temperature grade, supported flash formats, host-driver requirements, and firmware configuration. The USB4604 series appears in the verified search data as a functional equivalent, but it was not established as pin-to-pin compatible with the USB2642T-I/ML and therefore must not be treated as a drop-in replacement.
اطلاعات انطباق
The supplied comparison data identifies the USB2642 family as RoHS compliant and lead-free. No verified REACH, halogen-free, conflict-minerals, or automotive-qualification statement was provided.
