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Infineon Technologies CY7C65217A-24LTXIT
- Part No.:
- CY7C65217A-24LTXIT
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 24-UFQFN Exposed Pad
- Datasheet:
-
CY7C65217A-24LTXIT.pdf
- Description:
- USB FULL-SPEED PERIPHERALS
- Quantity:
- Payment:
- Shipping:
Inventory:2,094
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Product details
Overview
CY7C65217A-24LTXIT from Infineon is a USB 2.0 Full-speed (12 Mbps) Billboard controller IC for USB Type-C Alternate Mode devices, featuring dual-channel UART/I2C interfaces, 9 GPIOs, integrated 48-MHz oscillator, and 2560-byte configurable flash memory. It supports bus- or self-powered operation across 1.71–5.5 V and operates from –40°C to 105°C for automotive-grade applications.
For engineers reviewing the CY7C65217A-24LTXIT datasheet, CY7C65217A-24LTXIT pinout, CY7C65217A-24LTXIT application, or CY7C65217A-24LTXIT equivalent, key selection criteria include dual serial interface flexibility, native Windows 10 Billboard Device Class support, suspend/wakeup signaling, and QFN-24 package compatibility with USB Type-C dongle and docking station designs.
Technical Context
The CY7C65217A implements a USB Serial Interface Engine (SIE) compliant with USB 2.0 Full-speed specification and Billboard Device Class v1.21, enabling enumeration as a standard USB device that reports Alternate Mode failures via standardized descriptors. Its dual SCB blocks support independent UART (up to 115.2 kbps, 7/8-bit, parity/framing error detection) and I2C (400 kHz master) operation simultaneously.
Internal resources include a 48-MHz oscillator for USB timing, a 32-kHz oscillator for low-power suspend/resume control, and dedicated GPIOs configured for wakeup, suspend indication, and debug I/O. Power management supports bus-powered mode with VBUS sensing (3.15–5.25 V), core supply (VDDD: 1.71–5.5 V), and separate analog/digital ground domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Speed | Full-speed at 12 Mbps - meets USB 2.0 compliance for Billboard descriptor reporting without external PHY. |
| Serial Interfaces | Dual SCB: one UART (RX/TX, 115.2 kbps max) + one I2C (SCL/SDA, 400 kHz master) - enables concurrent host communication and peripheral configuration. |
| GPIO Count | 9 programmable GPIOs - includes dedicated SUSPEND output and WAKEUP input for system-level power coordination. |
| Flash Memory | 2560 bytes of on-chip flash - stores Billboard descriptors, vendor strings, and interface configuration persistently without external EEPROM. |
| Operating Voltage | VDDD = 1.71–5.5 V - supports direct connection to USB VBUS or regulated 1.8/3.3/5 V rails in compact Type-C accessories. |
| Temperature Range | –40°C to +105°C - qualified for automotive cabin and industrial docking environments requiring extended thermal stability. |
| ESD Protection | 2.2 kV HBM - protects USB data lines and GPIOs against handling and system-level electrostatic discharge events. |
Pinout & Package
Package: 24-lead QFN (4.0 mm × 4.0 mm, 0.5-mm pitch, 0.55-mm height), RoHS-compliant, wettable flank capable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| USBDP / USBDM | USB 2.0 differential data pair | Integrated 1.5-kΩ pull-up on USBDP and on-chip 27-Ω termination resistors - eliminates external USB impedance-matching components. |
| VDDD | Core and interface supply | Accepts 1.71–5.5 V - powers internal logic, SCBs, and GPIOs; requires local 1 µF decoupling. |
| VBUS | USB bus voltage sense | Monitors 3.15–5.25 V - enables bus-powered operation and VBUS presence detection for automatic power mode selection. |
| nXRES | Active-low reset input | Asynchronous chip reset - can be left unconnected with internal pull-up or driven externally for synchronized initialization. |
| SUSPEND | Output indicator | Asserted during USB suspend state - configurable active-HIGH/LOW via flash settings; used to gate downstream power rails. |
| WAKEUP | Input trigger | Edge-sensitive input - wakes device from suspend on configured polarity; supports system-initiated resume without host polling. |
| SCB0_1 / SCB0_2 | I2C interface (SCL/SDA) | Primary I2C master port - connects to display EDID, sensor, or configuration EEPROM at up to 400 kHz. |
| SCB1_0 / SCB1_1 | UART interface (RXD/TXD) | Asynchronous serial channel - interfaces with microcontrollers or legacy peripherals using standard TTL-level UART framing. |
| GPIO_1–GPIO_9 | General-purpose I/O | Configurable digital inputs/outputs - includes GPIO_1 as dedicated wakeup source; all support tristate and pull-up/down control via flash. |
Key Features
| Feature | Design Value |
|---|---|
| Native Billboard Device Class v1.21 | Enumerates without custom driver on Windows 10+ - reduces firmware development effort and ensures plug-and-play USB Type-C Alternate Mode failure reporting. |
| Dual independent serial interfaces | Simultaneous UART and I2C operation - enables concurrent host command parsing (UART) and peripheral register access (I2C) in multi-function docks. |
| Configurable 2560-byte flash | Persists Billboard descriptors, vendor IDs, and interface settings across power cycles - eliminates need for external nonvolatile memory and associated layout area. |
| Integrated 48-MHz oscillator | Meets USB timing accuracy requirements without external crystal - simplifies BOM and PCB layout while maintaining ±0.25% frequency tolerance for Full-speed compliance. |
| Automotive temperature grade | Rated for –40°C to +105°C operation - validated for under-hood and infotainment docking use cases where ambient thermal stress exceeds commercial limits. |
Applications
| Dongles | Docking Stations |
|---|---|
Use Scenario: USB-C to HDMI/DisplayPort adapter with embedded firmware for mode negotiation and error logging. IC Role / Device Role / Timing Role: Billboard controller handles USB enumeration, reports Alternate Mode handshake failures, and stores vendor-specific descriptors in flash. Use Value: Eliminates need for external microcontroller by integrating USB SIE, flash, and dual serial interfaces - reduces component count and board space in sub-20 mm² dongles. | Use Scenario: Multi-port USB-C dock supporting video, Ethernet, and USB peripherals with real-time status feedback. IC Role / Device Role / Timing Role: Central Billboard agent communicates with host OS via USB, while UART relays commands to MCU and I2C reads EDID from connected monitors. Use Value: Dual SCB channels enable parallel communication paths - accelerates descriptor updates and peripheral configuration without CPU intervention. |
| Monitors | Automotive Infotainment Docks |
Use Scenario: USB-C monitor with built-in hub functionality and dynamic power delivery negotiation. IC Role / Device Role / Timing Role: Reports DisplayPort Alt Mode entry/exit status and cable-related errors to host OS using standardized Billboard descriptors. Use Value: Native Windows 10 support ensures immediate visibility of connection issues - improves end-user troubleshooting without OEM driver installation. | Use Scenario: In-vehicle USB-C docking module for smartphone mirroring, charging, and accessory control in harsh thermal environments. IC Role / Device Role / Timing Role: Manages USB enumeration, monitors VBUS for hot-plug detection, and signals suspend/resume states to vehicle power management unit via GPIO. Use Value: –40°C to +105°C rating and integrated oscillators ensure reliable operation across automotive thermal cycles - avoids external timing component drift or failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB Billboard controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C65217-24LTXIT | Lacks suspend/wakeup support; no flash reconfiguration capability; identical pinout and UART/I2C interface. | Targeted for cost-sensitive, fixed-configuration dongles where runtime descriptor updates are unnecessary. | Select when flash programmability and automotive temperature range are not required - lower unit cost and simplified qualification. |
| USB2514B-AEZG | USB 2.0 hub controller with integrated Billboard functionality; supports up to 4 downstream ports; no UART/I2C; 32-pin QFN. | Used in multi-port hubs requiring simultaneous Billboard reporting and port expansion - not suitable for single-interface accessory designs. | Choose only when expanding USB topology is required alongside Billboard reporting - adds hub logic but removes serial interface flexibility. |
Compared with CY7C65217-24LTXIT, the CY7C65217A offers field-updatable descriptors and extended temperature operation; versus USB2514B-AEZG, it trades hub functionality for dual serial interfaces and smaller footprint - making it optimal for compact, intelligent Type-C accessories needing peripheral coordination.
Availability
CY7C65217A-24LTXIT is available at Aetrix Electronics and suitable for USB Type-C dongles, docking stations, monitors, and automotive infotainment docks requiring stable component supply, automotive-grade reliability, and native Billboard Device Class support.
Supply support for CY7C65217A-24LTXIT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies is a German semiconductor manufacturer specializing in power management, sensing, connectivity, and security solutions for automotive, industrial, and consumer markets.
The CY7C6521x family is designed specifically for USB Type-C Billboard functionality in compact accessories - integrating USB SIE, flash, oscillators, and dual serial interfaces to replace discrete microcontroller-based implementations.
FAQ
Does CY7C65217A-24LTXIT require an external crystal?
No. The device integrates a factory-trimmed 48-MHz oscillator meeting USB Full-speed timing accuracy requirements (±0.25%). No external crystal or clock source is needed, reducing BOM cost and PCB area. The internal oscillator is enabled by default and cannot be disabled.
How is Billboard descriptor content programmed into the device?
Descriptors are written to the 2560-byte flash memory using Infineon's USB-Serial Configuration Utility (USBUARTConfig) over USB. The utility supports vendor ID, product ID, device class, and custom string descriptors. Flash programming requires no additional hardware beyond a standard USB connection.
Can the UART and I2C interfaces operate simultaneously?
Yes. The CY7C65217A contains two independent Serial Communication Blocks (SCBs): SCB0 configured as I2C master and SCB1 as UART. Both operate concurrently without resource contention, enabling simultaneous communication with an I2C EEPROM and a host MCU over UART in docking applications.
What is the function of the SUSPEND and WAKEUP pins?
SUSPEND is an output that asserts during USB suspend state (configurable active-HIGH/LOW); WAKEUP is an input that triggers resume from suspend on edge detection. These pins enable coordinated power gating of downstream circuitry and system-level wake event handling without host polling - critical for energy-efficient Type-C accessories.
CY7C65217A-24LTXIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 24-UFQFN Exposed Pad
- Programmable:
- Not Verified
- Protocol:
- USB
- Function:
- Controller
- Interface:
- GPIO, I2C, Serial, UART
- Standards:
- USB 2.0
- Voltage - Supply:
- 1.71V, 3.15V, 4.35V ~ 1.89V, 3.45V, 3.63V
- Current - Supply:
- 20mA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Supplier Device Package:
- 24-QFN (4x4)
- Grade:
- -
- Qualification:
- -
CY7C65217A-24LTXIT FAQ
1.How can I place an order for CY7C65217A-24LTXIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C65217A-24LTXIT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CY7C65217A-24LTXIT reliable?
The price and inventory of CY7C65217A-24LTXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C65217A-24LTXIT is usually 5 days.
3.What payment methods are accepted for CY7C65217A-24LTXIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C65217A-24LTXIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C65217A-24LTXIT?
CY7C65217A-24LTXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C65217A-24LTXIT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CY7C65217A-24LTXIT?
For technical support, including CY7C65217A-24LTXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C65217A-24LTXIT requirements.
6.How does Aetrix verify that CY7C65217A-24LTXIT is sourced from the original manufacturer or authorized distributors?
All CY7C65217A-24LTXIT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY7C65217A-24LTXIT meets industry standards.
7.What is the process for return or replacement of CY7C65217A-24LTXIT?
All CY7C65217A-24LTXIT units undergo pre-shipment inspection (PSI). If there is an issue with CY7C65217A-24LTXIT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CY7C65217A-24LTXIT part is unused and in its original packaging.
Return procedure for CY7C65217A-24LTXIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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