CY7C65219-40LQXIT

Controllers Overview

The CY7C65219-40LQXI is a USB Billboard controller designed for managing USB dock and monitor solutions. It features a 32-bit, 48-MHz Arm Cortex-M0 processor with 128-KB flash and 8-KB SRAM. The device supports signed and unsigned firmware download to programmable dock components via USB. It includes a hardware crypto engine for authentication, four reconfigurable serial communication blocks (I2C, SPI, UART), and system-level ESD protection on DPLUS and DMINUS pins. Operating voltage ranges from 2.7 V to 5.5 V, with GPIO support down to 1.71 V. It is housed in a 40-pin QFN package and supports an industrial temperature range of –40 °C to +85 °C.

Controllers Feature Summary

• USB Billboard device class v1.21 support with full-speed USB 2.0 capability
• Hardware crypto block enabling authentication for signed and unsigned firmware updates
• Integrated oscillator eliminating the need for external clock sources
• System-level ESD protection meeting IEC61000-4-2 level 4C standards

Controllers Applications

• USB dock management
• Monitor control systems
• Programmable dock component coordination

Controllers Procurement Notes

Verify the exact ordering suffix LQXI corresponds to the 40-QFN package and industrial temperature grade. Confirm that Infineon continues to support existing part numbers as stated in the continuity documentation. Ensure compatibility with EZ-PD Dock configuration tools for firmware generation.

Controllers Selection Notes

Select this component when a dedicated USB Billboard controller is required for dock topology management. The integrated crypto engine simplifies secure firmware update implementations. Verify that the 48-MHz CPU performance and peripheral count meet the specific docking station's processing and interface requirements.

Controllers Part Context

This device belongs to the Cypress Semiconductor product line, now part of Infineon Technologies. It is specifically engineered for dock and monitor applications requiring robust USB management capabilities. The integration of MCU and USB controller functions reduces overall system complexity compared to discrete solutions.

Controllers Replacement Considerations

No public confirmed substitute part numbers are available in the provided datasheet. Consult official Infineon resources for potential cross-references or newer revisions within the same family.

Controllers FAQ

How does the CY7C65219 handle firmware updates?

It supports both signed and unsigned firmware updates over USB. Signed updates use RSA-2048/SHA-256 for authentication, while unsigned updates verify SHA-256 hashes.

What is the maximum operating frequency of the CPU?

The Arm Cortex-M0 processor operates at a maximum frequency of 48 MHz.

Does the device require an external clock?

No, the CY7C65219 includes an integrated oscillator, eliminating the need for external clock components.