CY7C65219-40LQXIT USB Billboard Controller | Infineon
MPN： CY7C65219-40LQXIT ✓ 啟用中CY7C65219-40LQXIT 概覽
A dock-management controller is a specialized USB interface controller used to identify a connected USB dock or monitor and exchange implementation-specific information with a host. In the broader electronics hierarchy, it belongs to the USB controller family, connects to embedded processors and system interfaces, and operates as part of a USB device-management subsystem. The Billboard class provides a standardized mechanism through which a USB device can report descriptive capabilities to the host rather than relying only on a manufacturer-specific protocol.
The CY7C65219-40LQXIT combines a USB 2.0 controller with an Arm Cortex-M0 processor and embedded memory in one package. Its 128KB Flash memory supports firmware storage, while 8KB of SRAM provides working memory for protocol handling and control logic. The available I2C, SPI, and UART interfaces allow the controller to communicate with display panels, bridge devices, sensors, configuration components, and other dock-management peripherals. ESD protection is identified for the device family in manufacturer product information.
This integration reduces the component count required to build a USB-enabled dock-management subsystem. A dedicated microcontroller and separate USB interface IC are not required for the core Billboard function, although external circuitry may still be necessary for display interfaces, power sequencing, high-speed data paths, voltage-level translation, and connector-specific protections. The USB full-speed implementation is appropriate for configuration and control traffic rather than high-bandwidth video or storage transfers.
Typical uses include USB-C docking stations, monitor hubs, universal docking platforms, display-control boards, peripheral-management controllers, and embedded USB accessories. The controller is particularly relevant when a host must identify dock capabilities using the USB Billboard device class. It can also coordinate low-speed sideband communication with I2C, SPI, or UART peripherals while the product’s primary high-speed interfaces are handled separately.
Designers should assign USB, power, clock, reset, programming, and exposed peripheral interfaces according to the manufacturer pin-description table and application schematic. USB routing requires careful control-impedance implementation, short return paths, and placement of decoupling close to the device. External ESD and surge protection should be selected for the connector environment rather than assumed to cover every exposed interface.
This page consolidates the exact device identity, interface capabilities, package information, sourcing links, drop-in assessment, and application guidance into one engineering reference. It also separates verified device facts from parameters that require confirmation with the manufacturer datasheet, helping designers evaluate the controller without relying on unrelated USB interface listings.
直接替換替代品，適用於 CY7C65219-40LQXIT — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： CY7C65219-40LQXIT （相同外形與佔位） — 差異在於 ESD Protection, Embedded Flash Memory.
CY7C65219-40LQXI
✅ 直接替換聯絡詢價
查看資料表 →CY7C65219-40LQXIT 規格
| Device Type | USB Billboard dock management controller |
| USB Specification | USB 2.0 |
| USB Speed | Full speed |
| USB Device Class | USB Billboard device class v1.21 |
| Processor Core | Arm Cortex-M0 |
| Embedded Flash Memory | 128KB |
| SRAM | 8KB |
| Serial Interfaces | I2C, SPI, UART |
| 封裝 | 40-QFN (6 x 6 mm) |
| 安裝類型 | Surface mount |
| ESD Protection | Present on the device family |
CY7C65219-40LQXIT 40-qfn (6 x 6 mm) 腳位配置指南
CY7C65219-40LQXIT（40-qfn (6 x 6 mm) 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： CY7C65219-40LQXIT.
請參閱 資料表 以查看完整腳位配置。
典型應用
CY7C65219-40LQXIT 適用於 6 應用s: USB-C Dock Management Controller, Monitor Dock and Hub Control, Universal Docking Platform, USB Peripheral Configuration Controller, Embedded USB Accessory and Hub, Industrial USB Control Panel.
USB-C Dock Management Controller
The CY7C65219-40LQXIT fits the control plane of a USB-C dock because it combines a USB 2.0 full-speed Billboard interface with an Arm Cortex-M0 processor, 128KB Flash, and 8KB of SRAM. Firmware can respond to host enumeration, identify dock capabilities, and coordinate attached functions without a separate microcontroller for the core management task. I2C, SPI, and UART provide links to configuration devices or downstream controllers. High-speed display or storage paths should remain separate because this part is specified for full-speed management traffic.
推薦
Monitor Dock and Hub Control
The CY7C65219-40LQXIT is suited to monitor docks that must report identity and capabilities over the USB Billboard class. Its Cortex-M0 core, 128KB embedded Flash, and 8KB SRAM support dedicated dock-management firmware, while I2C and SPI can connect panel configuration controllers, sensors, or bridge devices. UART can provide a simple auxiliary control channel. The design should keep USB full-speed routing short and controlled, and it must use the manufacturer pin table for all 40-QFN assignments.
推薦
Universal Docking Platform
A universal docking platform can use the CY7C65219-40LQXIT to standardize host-facing identification while its embedded processor manages product-specific behavior. The USB 2.0 full-speed interface implements Billboard v1.21 communication, and the available I2C, SPI, and UART interfaces reduce the need for separate glue logic when talking to downstream peripherals. Because the device manages configuration rather than high-speed media transport, designers should pair it with dedicated pathways for display, networking, and storage traffic when those functions are required.
推薦
USB Peripheral Configuration Controller
The CY7C65219-40LQXIT can act as a dedicated configuration controller in an accessory that needs firmware-defined behavior after USB enumeration. Its 128KB Flash provides room for protocol and product-specific logic, while 8KB SRAM supports runtime state and serial communication. I2C is useful for small sensors and configuration memories, SPI for faster peripheral controllers, and UART for diagnostic or boot-time communication. This role remains separate from a USB data bridge because the embedded processor handles management rather than bulk payload transfer.
推薦
Embedded USB Accessory and Hub
The CY7C65219-40LQXIT can add standardized device identification to an embedded accessory or auxiliary hub section. The Billboard interface communicates with the host, and the Cortex-M0-based architecture allows firmware to coordinate the accessory’s operating mode. Auxiliary I2C, SPI, or UART links can connect the controller to local sensors, panel controllers, or configuration registers. Connector-level ESD and surge protection must be designed separately, and USB routing must preserve controlled impedance and short return paths.
推薦
Industrial USB Control Panel
The CY7C65219-40LQXIT is applicable to an industrial control panel requiring a host-visible USB identity plus local device management. Firmware can implement Billboard identification and coordinate status or configuration functions through I2C, SPI, or UART. Its integrated 128KB Flash and 8KB SRAM provide a defined firmware platform without requiring a separate general-purpose processor for the management function. For industrial deployment, validate the exact operating-temperature grade, electrical limits, isolation strategy, and protection requirements before production release.
推薦
推薦產品摘要
工程參考資料，適用於 CY7C65219-40LQXIT — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | CY7C65219-40LQXI |
|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies |
| Package | 40-QFN (6 x 6 mm) | 40-QFN (6 x 6 mm) |
| Device Type | USB Billboard dock management controller | USB Billboard dock management controller |
| Processor Core | Arm Cortex-M0 | Arm Cortex-M0 |
| Embedded Flash Memory | 128KB | 128KB |
| SRAM | 8KB | 8KB |
| USB Configuration | USB 2.0 full speed | USB 2.0 full speed |
| Auxiliary Interfaces | I2C, SPI, UART | I2C, SPI, UART |
| Billboard Class | v1.21 | v1.21 |
主要差異化特點
- Integrated management processor and memory (對比CY7C65211-24LTXIT)
- Purpose-built USB Billboard support (對比CY7C68013A-56LTXC)
- Multiple embedded sideband interfaces (對比CY7C65219-40LQXI)
設計說明
Use the manufacturer package drawing and land pattern for the 40-QFN, including its exposed thermal or electrical pad as defined by the datasheet. Place input and internal decoupling capacitors close to their assigned pins, provide a continuous ground reference beneath the device, and route USB D+ and D- as a controlled-impedance pair with minimal stubs. Avoid placing test pads or other high-capacitance structures directly on the differential pair.
Decouple each required supply rail near the controller and keep power-distribution branches independent from noisy USB or display-converter paths. Confirm the exact input-voltage range, absolute maximum ratings, operating-temperature grade, and exposed-pad connection from the manufacturer datasheet before selecting regulators. If the exposed pad is electrically connected, follow the recommended plane and via pattern rather than assuming it is only a thermal surface.
Do not substitute the CY7C65211-24LTXIT or CY7C68013A-56LTXC solely because they are related USB controllers; their package counts and footprints differ from the 40-QFN target. Likewise, confirm the final ordering character of CY7C65219-40LQXI against the Infineon ordering table. Validate Billboard firmware, programming, reset, clock, and exposed auxiliary interfaces as a complete system rather than checking only the USB D+ and D- pins.
Keep the USB connector, protection devices, controller, and required support components in a predictable signal path. Provide low-impedance return connections beneath the USB pair, avoid routing the pair across split planes, and place ESD protection close to the connector. The Billboard interface carries management traffic rather than high-speed media, but correct signal integrity still improves enumeration reliability and reduces susceptibility to external interference.
Treat the USB full-speed interface as a differential high-speed signal even though its intended bandwidth is lower than high-speed USB. Use a geometry consistent with the board’s calculated impedance, minimize via count, avoid stubs, and maintain consistent reference planes. Confirm whether the device requires an external PHY, transceiver, or series termination from the manufacturer application schematic before finalizing the USB front end.
合規資訊
The manufacturer product page and distributor listings do not provide explicit compliance values in the referenced excerpts. Automotive qualification is not applicable to this general-purpose USB controller ordering code.
