CY7C65219-40LQXIT
CY7C65219-40LQXIT USB Billboard Controller | Infineon
The Infineon Technologies CY7C65219-40LQXIT is a USB Billboard dock-management controller with an Arm Cortex-M0 processor, 128KB of embedded Flash memory, and 8KB of SRAM in a 40-QFN package measuring 6 x 6 mm. It provides USB full-speed connectivity for dock and monitor solutions, supports USB Billboard device class v1.21, and includes I2C, SPI, and UART interfaces for connecting peripheral hardware. The integrated USB controller manages device identification and configuration, while the embedded microcontroller enables dock-specific control functions.
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.
Angebot
Kontakt
