CY7C65631-56LTXCT - 4-Port USB 2.0 Hub | Infineon
MPN: CY7C65631-56LTXCT ✓ Hoạt độngCY7C65631-56LTXCT Tóm tắt
A USB hub controller is a system-on-chip that manages traffic between one upstream USB connection and multiple downstream USB ports. It belongs to the USB interface controller hierarchy, which combines USB transaction handling, port control, clock generation, and device interfacing in a single semiconductor. The HX2LP family is specifically oriented toward compact, low-power USB hub designs where board area and standby energy use are important design constraints.
The CY7C65631-56LTXCT provides four downstream hub ports and integrated upstream and downstream termination resistors. It also includes integrated port-status indicator control, an external 24 MHz crystal interface with an integrated PLL, and in-system EEPROM programming. These functions reduce the amount of external support circuitry and simplify firmware configuration in production equipment.
The controller uses a single-TT architecture in which downstream traffic is managed through a shared transaction translator. This architecture can simplify hub implementation and reduce external USB connectivity requirements. The 56-pin QFN package also provides a compact surface-mount footprint suitable for equipment panels, docking stations, desktop peripherals, and embedded USB distribution systems.
Typical uses include powered USB hubs, multi-port charging and data-distribution panels, kiosk systems, test fixtures, and USB expansion boards. Designers should account for the 0°C to 70°C temperature range when planning enclosure temperature, connector current requirements, cable losses, and thermal conditions around the QFN device.
PCB implementation requires close attention to USB differential-pair routing, crystal placement, termination-network integrity, and decoupling. Short matched traces and a compact ground return help preserve signal quality, while stable local supply bypassing reduces the chance of controller or downstream-port instability during hot-plug activity.
This product page consolidates the controller's electrical limits, package information, application fit, verified drop-in alternative, and design considerations into an engineering-focused reference. It supports component selection while directing detailed pin assignment and production-programming decisions to the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho CY7C65631-56LTXCT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với CY7C65631-56LTXCT (cùng hình factor và footprint) — khác nhau ở Package Type, Product Family, EEPROM Support, Package Dimensions, Operating Temperature.
CY7C65630-56LTXC
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Xem tài liệu →CY7C65631-56LTXCT Thông số kỹ thuật
| Device Type | USB 2.0 hub controller |
| Product Family | EZ-USB HX2LP Lite |
| Number of Downstream Ports | 4 ports |
| Hub Architecture | Single-TT |
| Điện áp cung cấp | 3.3 V |
| Nhiệt độ hoạt động | 0°C to 70°C |
| Package Type | QFN-56 |
| Package Dimensions | 8 mm × 8 mm |
| Package Height | 0.90 mm |
| Kiểu lắp đặt | Surface mount |
| Số lượng chân | 56 pins |
| Upstream Termination | Integrated resistor |
| Downstream Termination | Integrated resistor |
| Port Status Indicator Control | Integrated |
| Crystal Frequency | 24 MHz external crystal |
| Clock Architecture | External crystal with integrated PLL |
| Device Configuration | In-system EEPROM programming |
| USB Version | USB 2.0 |
Hướng dẫn cấu hình chân CY7C65631-56LTXCT 0.90 mm
Cấu hình chân cho CY7C65631-56LTXCT (0.90 mm gói). Số thứ tự chân, chức năng và sơ đồ kết nối được xác định trong tài liệu thông số kỹ thuật của nhà sản xuất. Tham khảo nó để biết footprint và hướng dẫn hàn chính xác.
Không có dữ liệu chân cụ thể sẵn có cho CY7C65631-56LTXCT.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
CY7C65631-56LTXCT phù hợp cho 3 Áp dụngs: Hệ thống tích hợp, Máy thiết bị IoT, Điều khiển công nghiệp.
Hệ thống tích hợp
Xử lý trung tâm trong các ứng dụng tích hợp sử dụng CY7C65631-56LTXCT.
Máy thiết bị IoT
Máy thiết bị kết nối thông minh được cung cấp bởi CY7C65631-56LTXCT.
Điều khiển công nghiệp
Hệ thống tự động hóa và điều khiển sử dụng CY7C65631-56LTXCT.
Dữ liệu tham khảo kỹ thuật cho CY7C65631-56LTXCT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | CY7C65630-56LTXC |
|---|---|---|
| Package | QFN-56 (8 mm × 8 mm) | QFN-56 (8 mm × 8 mm) |
| Brand | Infineon Technologies | Infineon Technologies |
| Device Type | USB 2.0 hub controller | USB 2.0 hub controller |
| Supply Voltage | 3.3 V | 3.3 V |
| USB Version | USB 2.0 | USB 2.0 |
Bảo phân biệt quan trọng
- Four-port single-TT integration (vsCY7C65630-56LTXC)
- Integrated USB support functions (vsCY7C65630-56LTXC)
- Production programming support (vsCY7C65630-56LTXC)
Ghi chú thiết kế
Route each USB 2.0 differential pair as a tightly coupled, impedance-controlled pair with a continuous ground reference. Avoid plane splits beneath the pairs, minimize stubs to connectors and test points, and keep the upstream and downstream routes away from clocks and switching-power nodes. Differential-pair geometry and spacing must be calculated from the board stack-up rather than copied from a generic layout.
Place the 24 MHz crystal, its load components, and the associated ground path directly beside the controller clock pins. Keep the crystal loop compact and isolate it from USB differential pairs and high-current port-power routing. Follow the manufacturer reference layout for crystal placement, grounding, and decoupling because oscillator stability and USB clock-jitter margin depend on those details.
Provide local 3.3 V decoupling at the controller's supply pins and separate the hub's downstream port-power distribution from sensitive logic paths. Confirm the hub's self-powered or bus-powered operating mode, downstream current budget, and protection strategy against the datasheet. Adequate supply headroom prevents voltage droop during simultaneous device connections and hot-plug events.
Do not treat a shared QFN package as proof of drop-in interchangeability. Compare every pin, supply sequence, clock requirement, termination implementation, EEPROM interface, port-power behavior, and programming procedure between the original and candidate device. Any connector, enclosure, or firmware change must be validated with USB compliance and enumeration tests before production release.
Thông tin tuân thủ
The manufacturer product information identifies the I-grade ordering option but does not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements.