CY7C65217-24LTXI - USB 2.0 Serial Bridge | Infineon
Артикул: CY7C65217-24LTXI ✓ АктивенCY7C65217-24LTXI Обзор
A USB serial bridge is a USB interface controller that translates transactions between a USB host and an embedded UART, I2C, or SPI peripheral. It belongs to the hierarchy of USB interface controllers, serial interface controllers, interface integrated circuits, and semiconductors. By integrating protocol conversion and USB connectivity, the controller reduces the component count required to connect a small embedded system, sensor, peripheral, or communications module to a standard USB port.
The main engineering features visible in the verified product information are USB 2.0 support, UART and I2C connectivity, manufacturer-confirmed SPI support, and 3.3 V operation. The Arrow listing additionally describes full-speed USB operation and enumerates 1.8 V, 2.5 V, 3.3 V, and 5 V operating options. The package is a 24-pin QFN with an exposed pad and a stated terminal pitch of 0.5 mm, making it suitable for compact PCB layouts requiring numerous ground and power connections.
The CY7C65217-24LTXI is organized as a mixed-signal interface IC with separate USB and serial-facing functions. Its USB role is to receive standard host traffic and expose the embedded peripheral through a serial protocol. The manufacturer identifies the part as an EZ-USB serial bridge controller, while distributor records classify it as a USB controller or USB interface IC. Firmware and host-side class-driver support should be evaluated during design-in because protocol enumeration, descriptors, and application behavior depend on the selected firmware configuration.
Typical uses include USB-to-UART adapters, configuration interfaces for embedded boards, sensor and instrument connectivity, industrial control modules, and firmware update or manufacturing interfaces. The compact 4 x 4 mm QFN is useful when connector placement and board area are constrained. Compared with discrete USB transceivers, the integrated controller reduces the amount of host-side glue logic required, while compared with a USB-to-serial converter using a larger discrete implementation it supports several serial protocols in one device.
PCB design must account for the exposed pad, power and ground distribution, USB signal routing, and the voltage requirements of the connected serial interface. The 0.5 mm terminal pitch requires careful land-pattern and assembly-process control. Confirm the exact pinout, exposed-pad connection, clock requirements, firmware configuration, and supported serial levels in the manufacturer datasheet before committing a new design to production.
Аналоги без доработки для CY7C65217-24LTXI — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
CY7C65217A-24LTXI
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
CY7C65217-24LTXI Характеристики
| Product Type | USB 2.0 EZ-USB serial bridge controller |
| USB Specification | USB 2.0 |
| Maximum USB Data Rate | 12 Mbps |
| Serial Interface Support | UART, I2C, and SPI |
| Primary Supply Voltage | 3.3 V |
| Listed Operating Voltage Options | 1.8 V, 2.5 V, 3.3 V, and 5 V |
| USB Device Class | Full-speed USB controller |
| Package Type | 24-pin QFN with exposed pad |
| Package Dimensions | 4 x 4 mm |
| Terminal Count | 24 |
| Terminal Pitch | 0.5 mm |
| Maximum Operating Temperature | 85 °C |
| Тип монтажа | Surface mount |
Руководство по цоколевке CY7C65217-24LTXI в корпусе 4 x 4 mm
Цоколевка для CY7C65217-24LTXI (корпус 4 x 4 mm). Нумерация выводов, функции и схемы подключения определены в техническом описании производителя. Обратитесь к нему для точного посадочного места и рекомендаций по пайке.
Нет подробных данных о распиновке для CY7C65217-24LTXI.
Обратитесь к даташиту для полной конфигурации выводов.
Типичное применение
CY7C65217-24LTXI подходит для 6 применениеs: Compact USB-to-UART Adapter, Embedded Configuration Interface, Industrial Sensor Connectivity, Firmware Update and Manufacturing Interface, Instrument and Test Equipment Control, Portable Data Acquisition Module.
Compact USB-to-UART Adapter
CY7C65217-24LTXI fits a compact USB-to-UART adapter because it combines a USB 2.0 controller with UART support in a 24-QFN package measuring 4 x 4 mm. The verified maximum USB data rate is 12 Mbps, while the manufacturer identifies 3.3 V operation as a key attribute. The controller can present an embedded serial port to a USB host without requiring a separate USB-to-UART bridge package. The design must still confirm UART signal levels, supported baud rates, firmware descriptors, and host-driver behavior from the manufacturer datasheet. USB connector protection, cable-length considerations, and the exposed-pad thermal path also remain part of the adapter implementation.
Рекомендуется
Embedded Configuration Interface
The CY7C65217-24LTXI can provide a dedicated embedded configuration and diagnostics channel by connecting a host USB port to a board-level UART or I2C controller. Its 24-QFN package occupies only 4 x 4 mm, leaving board area for the target processor, memory, and power circuitry. Manufacturer information confirms UART and I2C support, while the verified 12 Mbps USB rate provides more host-link bandwidth than the serial function requires for many configuration workloads. Firmware should implement suitable USB descriptors and command handling, while the PCB design should preserve signal integrity between the USB connector and the controller.
Рекомендуется
Industrial Sensor Connectivity
CY7C65217-24LTXI is suitable for a USB-connected industrial sensor interface when the sensor or controller uses UART, I2C, or SPI. The manufacturer explicitly identifies all three serial protocols, allowing the USB bridge to unify host connectivity across different embedded peripherals. Its 3.3 V operation and maximum operating temperature of 85 °C make it a starting point for industrial equipment, although the complete system still needs appropriate power, isolation, environmental, and EMC design. The 0.5 mm QFN terminal pitch requires assembly-capable land geometry and careful exposed-pad thermal management.
Рекомендуется
Firmware Update and Manufacturing Interface
The CY7C65217-24LTXI can act as a firmware update bridge in a production fixture or embedded product by translating USB host commands to the target board's UART, I2C, or SPI programming interface. The 12 Mbps USB data rate supports rapid command exchange, and the compact 4 x 4 mm footprint is useful where space is constrained. A robust implementation should include device descriptors, timeout handling, write-progress reporting, and target-side protection against malformed commands. Production-test software must also validate the controller and firmware image against the intended board revision.
Рекомендуется
Instrument and Test Equipment Control
CY7C65217-24LTXI can provide a standardized USB control connection for laboratory and industrial test equipment that retains an embedded UART, I2C, or SPI command interface. The full-speed USB 2.0 controller and 12 Mbps maximum data rate are suitable for configuration traffic and status exchange, while the small QFN package helps meet instrument front-panel space constraints. Engineers should separate analog measurement paths from digital USB routing, validate grounding between host and target, and use the manufacturer timing data to establish dependable command latency.
Рекомендуется
Portable Data Acquisition Module
The CY7C65217-24LTXI supports a portable data-acquisition module by providing a direct USB host connection to an embedded sensor controller through UART, I2C, or SPI. Its 3.3 V operating supply and compact 24-QFN footprint are advantageous in battery-powered instruments where board area and energy use are constrained. Because the verified data does not specify quiescent current, sleep behavior, or USB bus-powered current, engineers must verify those parameters before finalizing a bus-powered design. Firmware should also manage sampling timing so host enumeration and command traffic do not corrupt time-critical measurements.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для CY7C65217-24LTXI — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | CY7C65217A-24LTXI |
|---|---|---|
| Package | 24-QFN (4 x 4 mm) | 24-QFN (4 x 4 mm) |
| Brand | Infineon Technologies | Infineon Technologies |
| USB Specification | USB 2.0 | USB 2.0 |
| Serial Interfaces | UART, I2C, and SPI | GPIO, I2C, Serial, and UART |
| GPIO Support | Not identified in the verified target listing | GPIO identified in the verified distributor listing |
Ключевые отличия
- Original ordering code for designs qualified without the A revision's GPIO feature (против CY7C65217A-24LTXI)
- Manufacturer-confirmed support for three embedded serial protocols (против CY7C65217A-24LTXI)
- Compact 24-QFN implementation with an exposed thermal pad (против CY7C65217A-24LTXI)
Заметки по проектированию
Use the exact manufacturer land pattern for the 24-QFN package and connect the exposed pad to the intended ground or power plane. The verified package has a 0.5 mm terminal pitch, so inspect the footprint after PCB library import, including pad length, solder-mask expansion, and paste-aperture ratios. Keep USB differential routing away from switching nodes and respect the manufacturer's USB trace geometry because this bridge can operate at up to 12 Mbps.
Separate the controller's supply routing from noisy analog and power-converter outputs, and provide local bypass capacitance at the pins identified in the manufacturer datasheet. The supplied data identifies 3.3 V operation but does not provide current consumption or capacitor recommendations, so those values must be obtained from the datasheet rather than inferred. Validate USB bus-powered current limits if the module derives power from VBUS, and account for inrush during enumeration and firmware startup.
Route the USB D+ and D+ pair as a controlled-impedance differential pair over a continuous reference plane, with minimal stubs and no unnecessary test pads. Place connector protection, series impedance-control components, and the controller according to the manufacturer's reference layout. Although the device is a full-speed USB 2.0 controller rated up to 12 Mbps in the verified data, EMI margin can still be limited by long exposed cable stubs or incorrectly formed connector launches.
Do not assume that CY7C65217A-24LTXI is interchangeable solely because its family name and 24-QFN package match. The verified listing identifies additional GPIO functionality for the A revision, so confirm every pin, power requirement, USB descriptor, firmware image, and exposed-pad connection. Also verify the selected UART, I2C, or SPI voltage levels and direction because the supplied snippets do not provide the complete electrical pin table.
Информация о соответствии
The supplied verified product excerpts do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is marked not applicable because this USB interface controller is not presented as an automotive-qualified device.
