CY7C65219-40LQXI - USB Billboard Controller | Infineon
Teilenummer: CY7C65219-40LQXI ✓ AktivCY7C65219-40LQXI Übersicht
A USB Billboard controller is a specialized USB interface controller used to identify attached accessories and exchange device information with a host. In the power-management hierarchy, the CY7C65219 belongs to the broader family of interface ICs and microcontrollers: its integrated Cortex-M0 core executes firmware that manages USB enumeration, dock interfaces, and peripheral connectivity. The USB Billboard interface is particularly useful in universal docks and monitor ecosystems where accessory detection must occur before a more complete display or data path is established.
The controller combines a USB 2.0 full-speed interface with I2C, SPI, and UART connectivity. Its Cortex-M0 processing core and 128 KB Flash provide space for configuration and control firmware, while 8 KB of SRAM supports runtime buffering and protocol handling. ESD protection strengthens the USB-facing implementation, although the complete system still requires suitable board-level protection and compliant connector routing.
The CY7C65219 supports operating voltage options identified in the verified product information as 1.8 V, 2.5 V, 3.3 V, and 5 V. This flexibility allows the controller to sit between USB host logic and lower-voltage dock peripherals. The 40-QFN 6 x 6 mm package supports compact surface-mount layouts, but the exposed construction requires thermal and assembly planning based on the manufacturer land pattern and reflow guidance.
Typical uses include USB-C and legacy USB docking stations, monitor hubs, display adapters, cable-management devices, and peripheral identification systems. I2C is suitable for status and configuration peripherals, SPI can support higher-bandwidth local devices, and UART provides a straightforward host interface for firmware updates or diagnostics. Firmware should implement the required Billboard descriptors and device-class behavior before production deployment.
Designers should follow the manufacturer datasheet for the 40-QFN pinout, exposed-pad connection, USB data-routing geometry, decoupling, and programming setup. USB differential pairs require controlled impedance and minimized discontinuity. Firmware compatibility, voltage selection, ESD behavior, and accessory descriptors should also be verified against the final dock architecture rather than inferred solely from the package outline.
This page consolidates verified manufacturer and distributor information, application guidance, design considerations, and availability context. It also explicitly identifies electrical details that require confirmation from the manufacturer datasheet instead of presenting unverified specifications as fact.
Drop-in-Alternativen für CY7C65219-40LQXI – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Für dieses Produkt sind keine Drop-in-Alternativen verfügbar.
Alternativen anfordernCY7C65219-40LQXI Technische Daten
| Product Type | USB Billboard dock management controller |
| USB Specification | USB 2.0 |
| USB Operating Speed | Full-speed |
| USB Device Class | USB Billboard device class v1.21 |
| Processor Core | Arm Cortex-M0 |
| Embedded Flash Memory | 128 KB |
| Static RAM | 8 KB |
| Serial Interfaces | I2C, SPI, UART |
| ESD Protection | Yes |
| Operating Voltage Options | 1.8 V, 2.5 V, 3.3 V, 5 V |
| Package Type | 40-QFN |
| Package Dimensions | 6 mm x 6 mm |
| Pin-Anzahl | 40 pins |
| Montageart | Surface mount |
| Shipping Package | Tray |
CY7C65219-40LQXI tray Pinbelegungsleitfaden
Pinbelegung für CY7C65219-40LQXI (tray-Gehäuse). Pin-Nummerierung, Funktionen und Anschlussdiagramme sind im Herstellerdatenblatt definiert. Entnehmen Sie diesem den genauen Footprint und Lötrichtlinien.
Keine detaillierten Pinbelegungsdaten verfügbar für CY7C65219-40LQXI.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
CY7C65219-40LQXI ist geeignet für 6 Anwendungs: USB-C Docking Stations, Monitor Hubs, Display Adapters and Dongles, USB Peripheral Identification, Industrial USB Interface Modules, Cable and Accessory Management.
USB-C Docking Stations
The CY7C65219-40LQXI fits a docking station that must identify attached accessories before enabling the full downstream data path. Its USB 2.0 full-speed Billboard interface provides a standardized discovery mechanism, while the Arm Cortex-M0 core, 128 KB Flash, and 8 KB SRAM support accessory descriptors, dock policy, and status handling. The I2C, SPI, and UART interfaces can connect local hub, display, or configuration devices. The principal trade-off is that the 40-QFN 6 x 6 mm package requires careful USB routing and exposed-pad assembly, so a smaller USB interface controller may be preferable where footprint is the overriding constraint.
Monitor Hubs
A monitor hub can use the CY7C65219-40LQXI to detect connected display or input accessories through USB Billboard v1.21 before enabling downstream video and data paths. The controller's 128 KB of embedded Flash accommodates configuration data and application firmware, while 8 KB of SRAM supports runtime state and protocol buffers. I2C is useful for display or hub configuration peripherals, and SPI can serve compatible local devices. Compared with a general-purpose USB controller, this part offers a focused dock-management role; however, the system must implement compatible Billboard descriptors and validate the selected voltage domain against the accessory ecosystem.
Display Adapters and Dongles
The CY7C65219-40LQXI can serve as the control element in a compact display adapter or docking dongle that announces its capabilities to a host. USB full-speed operation is sufficient for configuration and Billboard-class discovery rather than high-bandwidth video transport, allowing local display or interface devices to remain connected through I2C, SPI, or UART. Its Cortex-M0 core and 128 KB Flash provide enough control logic for accessory enumeration and configuration. Design engineers should verify whether the 40-QFN footprint and its four advertised voltage options match the adapter's power architecture and connector requirements.
USB Peripheral Identification
For a USB peripheral that needs to expose identity and capability information, the CY7C65219-40LQXI implements the USB Billboard device class v1.21 and provides local serial connectivity for configuration. The integrated 128 KB Flash stores firmware and descriptor data, while the 8 KB SRAM handles active protocol and control tasks. ESD protection adds useful robustness around the USB-facing interface, but board-level routing, grounding, and connector protection remain essential. This application is best suited to accessories where automatic host-side discovery adds more value than a minimal bus-powered pass-through implementation.
Industrial USB Interface Modules
Industrial interface modules can use the CY7C65219-40LQXI to combine USB enumeration with embedded accessory management and local peripheral control. Its I2C, SPI, and UART interfaces reduce the number of discrete bridge functions, and the Cortex-M0 core can implement device policies, logging, or configuration update logic. The supported 1.8 V, 2.5 V, 3.3 V, and 5 V options are useful when the module bridges different logic levels, subject to the detailed requirements in the datasheet. For harsh environments, engineers must separately confirm temperature, EMC, and regulatory performance for the assembled module.
Cable and Accessory Management
The CY7C65219-40LQXI is applicable to intelligent cable hubs and accessory-management products that need to announce connected features over USB. The Billboard interface lets the host discover capabilities, while the embedded processor executes device-specific policies without requiring a separate application processor. I2C and UART provide low-cost connections to status LEDs, buttons, or configuration registers, and SPI can support higher-throughput local peripherals. Integration should account for the controller's package area, thermal requirements, USB impedance, and firmware update strategy; the verified information does not establish industrial temperature or automotive qualification.
Technische Referenzdaten für CY7C65219-40LQXI – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt |
|---|---|
| Package | 40-QFN, 6 mm x 6 mm |
| Brand | Infineon Technologies |
| Product Type | USB Billboard dock management controller |
| USB Specification | USB 2.0 |
| USB Speed | Full-speed |
| USB Device Class | Billboard v1.21 |
| Processor Core | Arm Cortex-M0 |
| Embedded Flash | 128 KB |
| Static RAM | 8 KB |
| Serial Interfaces | I2C, SPI, UART |
| ESD Protection | Yes |
| Operating Voltage Options | 1.8 V, 2.5 V, 3.3 V, 5 V |
Wichtigste Unterscheidungsmerkmale
- Purpose-built USB Billboard management (vs. CY7C65211-24LTXIT)
- Integrated dock-management processing (vs. CY7C65630-56LTXI)
- Compact multifunction interface integration (vs. CY7C65211-24LTXIT)
Designhinweise
Route the USB D+ and D- pair as a controlled-impedance differential pair using the geometry specified by the manufacturer datasheet and PCB-stackup guidance. Keep the pair tightly matched, minimize stubs and layer changes, and place required USB termination and protection close to the connector. Confirm the exposed-pad connection and thermal-via pattern from the 40-QFN land pattern before fabrication.
Map the selected 1.8 V, 2.5 V, 3.3 V, or 5 V operating condition to the actual USB and accessory power domains before schematic release. Follow the datasheet's recommended input and output capacitors, local decoupling, and power-up requirements. Place bypass components close to their associated supply pins and account for voltage-dependent bulk capacitance, tolerance, and effective DC-bias derating.
Do not treat the target's generic USB interface description as sufficient evidence that another controller is interchangeable. A drop-in candidate must have the same 40-QFN footprint and pin assignments, exposed-pad behavior, compatible supply voltages, equivalent USB Billboard implementation, and a workable programming and firmware path. The cross-reference search did not verify those requirements for the alternate parts it surfaced.
Validate the Billboard descriptors, class behavior, accessory identity, and host compatibility in the final system rather than relying only on generic controller benchmarks. USB full-speed operation is suitable for management traffic, not high-bandwidth video or storage paths. If the product must identify accessories before a downstream interface becomes active, include the necessary power, mux, and firmware sequencing in the system architecture.
Compliance-Informationen
The supplied comparison search mentions RoHS and REACH attributes but does not provide their verified status. AEC-Q100 is not applicable because this is a general-purpose dock-management controller, and no automotive qualification was established.
