CY7C65621-56LTXI USB 2.0 Hub Controller | Infineon
MPN: CY7C65621-56LTXI ✗ Cuối đờiCY7C65621-56LTXI Tóm tắt
A USB hub controller is an interface integrated circuit that coordinates traffic between a USB host and multiple downstream peripherals. Within the hierarchy of USB interface controllers, hub controllers, interface ICs, and semiconductors, it provides device enumeration, downstream-port management, and shared host connectivity. The target part is therefore useful when one USB host connection must fan out to two USB devices without relying on a host-side software hub.
The verified data highlights Full Speed and High Speed USB 2.0 operation, two downstream ports, a 3.3 V supply, and a single-TT bus-powered configuration. The Serial Interface Engine allows the controller to communicate with the USB host, while the QFN exposed-pad package supports compact surface-mount construction and board-level heat spreading. The I-grade ordering code is explicitly identified by the manufacturer for the two-port bus-powered application.
The CY7C65621 family is intended for USB hubs and related interface equipment where deterministic downstream-port control is required. Compared with a four-port hub controller, the two-port architecture can fit installations that need exactly two ports and may simplify enclosure, cable, and power-budget considerations. Firmware, descriptor configuration, downstream transceiver characteristics, and detailed electrical limits should be checked in the manufacturer datasheet before board release.
Typical installations include compact USB hubs, bus-powered accessories, embedded USB expansion equipment, and two-port docking products. The device can sit between a host controller and two downstream connectors, provided the board implements the required USB routing, decoupling, protection, and exposed-pad thermal construction. USB signal integrity is especially important because high-speed edges and connector launches can introduce reflections and loss.
For a new design, use the manufacturer ordering information and datasheet to confirm pin assignments, supported operating modes, crystal or clock requirements, power sequencing, and transceiver layout. Treat the published 3.3 V value as the verified supply figure, but verify every electrical limit and application guideline in the official documentation. This page combines verified distributor facts, official product identification, application guidance, and replacement constraints rather than adding unsupported specifications.
Bộ thay thế dễ dàng lắp đặt cho CY7C65621-56LTXI — 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 CY7C65621-56LTXI (cùng hình factor và footprint) — khác nhau ở Package, Product Type, Temperature Grade, USB Specification.
CY7C65631-56LTXI
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →CY7C65630-56LTXAT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
USB2513B-AEZC
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →USB5532B-5000JZX
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
KSZ9477STXI
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →CY7C65621-56LTXI Thông số kỹ thuật
| Product Type | USB hub controller |
| USB Specification | USB 2.0 |
| USB Speed Support | Full Speed and High Speed |
| Number of Ports | 2 ports |
| Điện áp cung cấp | 3.3 V |
| Serial Interface Engine | Integrated |
| Cấu trúc | Single-TT |
| Application Configuration | Bus powered |
| Temperature Grade | I-grade |
| Hộp | 56-QFN (8 mm x 8 mm) |
| Package Type | QFN |
| Exposed Pad | Yes |
| Kiểu lắp đặt | Surface Mount |
| Manufacturer | Infineon Technologies |
| Host Communication | USB Serial Interface Engine |
Hướng dẫn cấu hình chân CY7C65621-56LTXI qfn
Cấu hình chân cho CY7C65621-56LTXI (qfn 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 CY7C65621-56LTXI.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
CY7C65621-56LTXI phù hợp cho 6 Áp dụngs: Compact Two-Port USB Hub, Bus-Powered USB Expansion Accessory, USB Docking Product, Embedded USB Expansion Board, Industrial USB Interface Module, USB Test and Measurement Front Panel.
Compact Two-Port USB Hub
CY7C65621-56LTXI fits a compact two-port USB hub because the verified manufacturer page identifies a two-port single-TT bus-powered application. Place the controller between the upstream USB host connection and two downstream ports, then implement the required USB trace geometry, connector protection, and exposed-pad thermal connections. The two-port topology avoids adding unnecessary downstream hardware when the enclosure only needs two USB connections. The key design consideration is validating power budget and enumeration behavior across the complete hub board rather than relying on controller specifications alone.
Được đề xuất
Bus-Powered USB Expansion Accessory
The verified Infineon description specifically positions CY7C65621-56LTXI for a two-port single-TT bus-powered application, making it relevant to accessories that obtain power from the USB bus. The controller can manage two downstream connections while communicating with the host through its integrated USB Serial Interface Engine. Designers should calculate upstream and downstream current requirements, ensure the hub complies with the applicable USB power rules, and provide protection against inrush and ESD events. The supplied data does not specify the maximum bus current, so that value must be taken from the official datasheet before release.
Được đề xuất
USB Docking Product
CY7C65621-56LTXI can serve as the hub-control element in a compact docking product where one upstream USB connection must feed two downstream peripherals. Its verified USB 2.0 Full Speed and High Speed support is appropriate for a product that must negotiate device speed across multiple attached peripherals. The PCB should keep high-speed traces short and controlled, provide connector return paths, and route low-speed and high-speed pairs according to the manufacturer recommendations. Firmware and descriptor configuration must be validated with representative devices before production because the supplied web snippets do not enumerate descriptor limitations.
Được đề xuất
Embedded USB Expansion Board
For an embedded USB expansion board, CY7C65621-56LTXI provides a dedicated way to manage two downstream USB ports instead of requiring the host processor to emulate hub functions. The 56-QFN footprint supports compact surface-mount construction, while the exposed pad can improve heat spreading when the device operates continuously. A production layout should include solid ground distribution, short return paths, controlled impedance routing, and accessible test points. Because the available verified material does not state pin assignments or recommended PCB stack-up details, those items must be taken directly from the manufacturer documentation.
Được đề xuất
Industrial USB Interface Module
CY7C65621-56LTXI may be used in an industrial USB interface module that needs a defined two-port expansion path. The I-grade ordering designation is verified by the manufacturer page, although the supplied data does not state the temperature range, so industrial environmental requirements must be checked in the official ordering information. A robust module should include ESD protection, input-power filtering, connector shielding, and a controlled reference or clock implementation specified by the device documentation. The controller should be validated alongside cables, loads, and downstream devices because system-level USB behavior can differ from lab conditions.
Được đề xuất
USB Test and Measurement Front Panel
CY7C65621-56LTXI can be considered for a test or measurement front panel that exposes two USB service or peripheral ports. The two-port arrangement simplifies panel wiring compared with a larger hub, while Full Speed and High Speed operation supports both legacy and higher-speed USB devices. Keep USB differential routing away from noisy analog or switching sections, provide solid return planes, and validate connector launches with appropriate measurements. The verified data does not identify the controller's detailed electrical thresholds or jitter limits, so signal-integrity sign-off must rely on the official datasheet and application guidance.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho CY7C65621-56LTXI — 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 | CY7C65631-56LTXI | CY7C65630-56LTXAT | USB2513B-AEZC | USB5532B-5000JZX | KSZ9477STXI |
|---|---|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 56-QFN (8 mm x 8 mm) | 56-QFN (8 mm x 8 mm) | 56-QFN (8 mm x 8 mm) | 56-QFN (8 mm x 8 mm) | 56-QFN (8 mm x 8 mm) | 56-QFN (8 mm x 8 mm) |
Bảo phân biệt quan trọng
- Verified two-port single-TT bus-powered positioning (vsCY7C65630-56LTXAT)
- USB 2.0 Full Speed and High Speed support (vsUSB2513B-AEZC)
- Integrated host Serial Interface Engine (vsUSB5532B-5000JZX)
Ghi chú thiết kế
Treat the 56-QFN exposed pad as both a soldering and thermal feature. Follow the manufacturer land pattern, use a reflow profile suitable for the package, and provide thermal vias only where the PCB stack-up and datasheet guidance allow them. Confirm pad dimensions, mask opening, paste pattern, and assembly tolerances with the official package drawing before releasing artwork.
Route USB differential pairs as controlled-impedance nets over a continuous reference plane, with the manufacturer-recommended pair geometry and length matching. Keep connector launches, protection devices, and branch points physically controlled; excessive stubs and aggressive right-angle routing can degrade USB 2.0 High Speed behavior. Validate the final board with the intended cables and downstream devices.
The verified application description identifies a 3.3 V, bus-powered two-port hub. The designer must verify upstream current limits, downstream inrush behavior, regulator headroom, and protection-device drop from the official electrical documentation. Do not infer the maximum USB current from the 3.3 V label; the available data does not provide that limit.
Do not select a same-package candidate as a drop-in replacement solely because it uses a 56-QFN outline. The supplied cross-reference results identify CY7C65631-56LTXI and CY7C65630-56LTXAT but do not prove identical pin assignments, firmware, port count, electrical limits, or USB behavior. Compare the official datasheets and validate enumeration before substitution.
Thông tin tuân thủ
The verified excerpts identify the manufacturer, USB function, package, voltage, application configuration, and I-grade designation, but do not provide RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements.
