CY7C65210A-24LTXI USB 2.0 Controller | Infineon
MPN： CY7C65210A-24LTXI ✓ 啟用中CY7C65210A-24LTXI 概覽
A USB controller is an interface integrated circuit that manages communication between a USB host and an embedded target device. Within the broader hierarchy of interface ICs, this device combines USB device control, GPIO expansion, I2C, and UART-style serial connectivity. The manufacturer identifies CY7C65210A-24LTXI as an EZ-USB Billboard controller, a device family commonly used for programmable USB-to-serial and USB-to-peripheral bridges.
The headline capabilities include USB 2.0 operation, 11 GPIOs, I2C communication up to 400 kHz, and a 48 MHz clock. According to the Infineon product listing, the controller supports GPIO, I2C, serial and UART interface functions. These features make it suitable for compact USB peripheral equipment, configuration interfaces, human-interface accessories, and embedded control heads that need to enumerate reliably as a USB device.
The 24-QFN (4 x 4 mm) package supports dense PCB layouts while reducing lead-related inductance compared with larger through-hole packages. Its compact land pattern requires careful PCB layout to preserve USB signal integrity, provide adequate power and ground connections, and route the I2C and serial signals away from high-current edges. The manufacturer package designation identifies a 24-pin QFN device; consult the ordering information and datasheet for the exact exposed-pad and terminal details.
Typical applications include USB-to-serial adapters, programmable control panels, configuration bridges, embedded service interfaces, and Type-C peripheral designs where a low-speed or full-speed USB interface is sufficient. When designing around this controller, match the target device class, USB enumeration requirements, GPIO levels, and serial protocol before finalizing the PCB.
This page summarizes the manufacturer product information, distributor identifiers, package details, and verified interface characteristics. It also organizes application guidance, engineering cautions, and drop-in substitution information so that design decisions can be reviewed against the exact ordering code and footprint.
直接替換替代品，適用於 CY7C65210A-24LTXI — 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： CY7C65210A-24LTXI （相同外形與佔位） — 差異在於 Package, Serial Interface.
CY7C65210-24LTXI
✅ 直接替換聯絡詢價
查看資料表 →CY7C65210A-24LTXI 規格
| Product Type | USB 2.0 Billboard controller |
| USB Specification | USB 2.0 full-speed |
| Number of GPIOs | 11 GPIO |
| I2C Maximum Clock Frequency | 400 kHz |
| Internal Clock Frequency | 48 MHz |
| Serial Interface | Serial and UART interface |
| I2C Interface | I2C interface |
| GPIO Interface | 11 GPIO |
| 封裝 | 24-QFN (4 x 4 mm) |
| Number of Package Pins | 24 pins |
| 安裝類型 | Surface mount |
| Product Family | EZ-USB serial bridge controller |
| Target Interface | USB 2.0 device |
CY7C65210A-24LTXI 24 pins 腳位配置指南
CY7C65210A-24LTXI（24 pins 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： CY7C65210A-24LTXI.
請參閱 資料表 以查看完整腳位配置。
典型應用
CY7C65210A-24LTXI 適用於 6 應用s: USB-to-Serial Configuration Bridge, Programmable Control Panel, Embedded USB Service Interface, USB Accessory and Dongle, Type-C Peripheral Interface, Industrial Sensor-to-USB Gateway.
USB-to-Serial Configuration Bridge
The CY7C65210A-24LTXI fits a USB-to-serial configuration bridge because its USB 2.0 full-speed controller is combined with serial and UART interface functions in a compact 24-QFN package. The 11 GPIOs can supervise peripheral enables, status indicators, mode-selection signals, or service inputs without requiring a separate GPIO expander. The 48 MHz clock provides the controller timing stated in the manufacturer specification. A practical implementation should place the USB traces as a short, impedance-controlled branch near the connector, isolate the serial lines from switching edges, and verify that the selected UART levels match the target equipment. The controller is appropriate when a full-speed USB link and compact firmware-controlled bridging are sufficient rather than a high-speed host interface.
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Programmable Control Panel
A programmable control panel can use the CY7C65210A-24LTXI to combine a USB device connection with local status and command handling. The 11 GPIOs are useful for LEDs, relay-control requests, mode buttons, panel interlocks, and host-to-target commands, while the I2C interface can connect configuration or sensor devices operating up to 400 kHz. Its 24-QFN (4 x 4 mm) body helps preserve panel space for connectors and mechanical features. Designers should assign GPIO levels and directions from the exact pin table, provide suitable logic translation where required, and keep the USB differential pair away from panel switching nodes. Firmware should also debounce external inputs and define safe states when the USB host is disconnected or the controller is reset.
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Embedded USB Service Interface
The CY7C65210A-24LTXI is appropriate for an embedded USB service interface because it enumerates as a USB 2.0 Billboard controller and adds GPIO and serial connectivity for a compact service header. A host computer can use this interface to read device status, issue configuration commands, or update settings through a common USB port rather than a dedicated connector. The 48 MHz controller clock supports local protocol handling, while I2C up to 400 kHz can link the bridge to an onboard configuration device. Implement the intended USB class and descriptor set in firmware, protect service access appropriately, and validate suspend, resume, and host-removal behavior. A common-ground or isolated serial arrangement should be selected according to the electrical environment of the serviced equipment.
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USB Accessory and Dongle
For a USB accessory or dongle, the CY7C65210A-24LTXI offers a compact way to combine USB 2.0 full-speed communication with local serial and GPIO functions. Its 11 GPIOs can drive status LEDs, identify an accessory, monitor a pushbutton, or interface with a low-power sensor. The I2C port supports devices operating up to 400 kHz, enabling shared access to configuration EEPROMs or small sensors. The 24-QFN footprint conserves board area in enclosure-constrained designs, although careful decoupling and exposed-pad treatment remain necessary. Designers should minimize the distance between the controller and its clock and bypass networks, maintain USB impedance continuity, and account for the voltage domains of every attached peripheral before finalizing the schematic.
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Type-C Peripheral Interface
The CY7C65210A-24LTXI can support a Type-C peripheral interface where the product requires USB 2.0 full-speed rather than a higher data rate. Its Billboard-controller function provides a USB device connection, while serial, I2C, and GPIO resources allow the same controller to supervise accessory behavior. The 11 GPIOs may monitor cable-related control signals or local enable functions, and the I2C interface can operate up to 400 kHz for configuration devices. The Type-C connector and power negotiation requirements must be evaluated independently from the USB data controller. PCB implementation should preserve the required USB trace geometry, provide proper device capacitance where needed, and separate connector transients from sensitive serial and clock paths.
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Industrial Sensor-to-USB Gateway
The CY7C65210A-24LTXI can serve as the USB-facing element of an industrial sensor-to-USB gateway. The controller accepts USB 2.0 full-speed commands from a host, exchanges data with local sensors through I2C at up to 400 kHz, and uses serial or UART links for compatible industrial peripherals. Its 11 GPIOs can monitor alarms, enable sensor power, read selectors, or drive status indicators. The 24-QFN package is useful where the gateway board must remain compact, but industrial implementations must add appropriate protection, isolation, and grounding beyond the controller itself. Verify every power and logic voltage against the datasheet, use galvanic isolation where required, and make firmware detect communication faults without driving connected equipment into an unsafe state.
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推薦產品摘要
工程參考資料，適用於 CY7C65210A-24LTXI — 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 | CY7C65210-24LTXI |
|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies |
| Package | 24-QFN (4 x 4 mm) | 24-QFN (4 x 4 mm) - same package |
| Product Type | USB 2.0 Billboard controller | USB 2.0 Billboard controller |
| USB Speed | USB 2.0 full-speed | USB 2.0 full-speed |
| Interface Set | GPIO, I2C, serial and UART | USB 2.0 and I2C highlighted in listing |
主要差異化特點
- Integrated control and communication resources (對比CY7C65210-24LTXI)
- Compact four-wire interface integration (對比CY7C65210-24LTXI)
- I2C bandwidth for local peripherals (對比CY7C65210-24LTXI)
設計說明
Route the USB differential pair as a controlled-impedance pair with minimal stubs and length imbalance, and connect it directly to the controller's USB pins through the shortest practical path. Keep the pair on a continuous reference plane and away from switching regulators, relay drivers, and other high-edge-rate nets. Place required protection close to the connector and confirm that its capacitance does not compromise USB signal integrity.
Follow the manufacturer's recommended power, ground, clock, and bypass layout for the 24-QFN device. Place decoupling components adjacent to their designated pins and provide a low-impedance connection to the required ground reference. Do not assume that the exposed pad is identical across all related ordering codes; verify its electrical assignment and thermal requirements in the package drawing before manufacturing the board.
Treat CY7C65210A-24LTXI and CY7C65210-24LTXI as distinct orderable devices even though both appear in the same 24-QFN family. The A-version listing identifies 11 GPIOs and serial/UART functions, so a substitution that omits or multiplexes those resources may fail silently at board level. Compare the complete pin-description tables, USB descriptors, clock arrangement, and application interface before approving a replacement.
For I2C connections operating up to 400 kHz, verify pull-up voltage, resistance, bus capacitance, and rise-time limits rather than selecting resistors by frequency alone. Keep the bus short where possible and route it away from USB and switching-current paths. If the same bus includes slow pull-up networks or several capacitive devices, evaluate the worst-case rise time and bus contention behavior during controller reset.
合規資訊
The verified product and distributor listings do not state the required compliance status. Confirm RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals declarations for the exact ordering code with Infineon before production release.