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Infineon Technologies CY7C65216-24LTXIT
- Part No.:
- CY7C65216-24LTXIT
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 24-UFQFN Exposed Pad
- Datasheet:
-
CY7C65216-24LTXIT.pdf
- Description:
- USB Full-Speed Peripherals
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
CY7C65216-24LTXIT from Infineon Technologies (formerly Cypress) is a USB 2.0 Full-Speed (12 Mbps) to I²C single-channel bridge controller configured by default as an I²C slave, featuring 256-byte TX/RX FIFOs, 8 GPIOs, and integrated 48-MHz oscillator. It enables legacy I²C peripherals to interface with USB hosts in medical devices, POS terminals, and test equipment.
For engineers reviewing the CY7C65216-24LTXIT datasheet, CY7C65216-24LTXIT pinout, CY7C65216-24LTXIT application, or CY7C65216-24LTXIT equivalent, key selection criteria include I²C master/slave configurability, USB vendor-class driver support across Windows/Linux/macOS, battery charger detection (BCD v1.2), and 1.71–5.5 V operating voltage range.
Technical Context
The device implements a USB Serial Interface Engine (SIE) compliant with USB 2.0 Full-Speed and Battery Charging Specification Rev. 1.2 (peripheral detect only). It integrates USB termination resistors and supports CDC, PHDC, and vendor-class USB device enumeration.
I²C interface operates up to 400 kHz with multi-master support and configurable master/slave mode. Internal 512-byte flash stores VID/PID, descriptors, I²C timing, GPIO mapping, and BCD settings-configured via Windows utility without firmware development.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Speed | Full-Speed at 12 Mbps - enables direct connection to standard USB 2.0 host ports without external PHY. |
| I²C Data Rate | Up to 400 kHz - supports standard/fast-mode I²C peripherals including sensors and EEPROMs. |
| FIFO Depth | 256 bytes TX + 256 bytes RX - reduces host polling frequency and improves burst transfer efficiency. |
| GPIO Count | 8 programmable pins - usable for status signaling, reset control, or I²C bus arbitration logic. |
| Operating Voltage | 1.71 V to 5.5 V - allows direct interfacing with 1.8 V, 3.3 V, and 5 V I²C systems without level shifters. |
| Temperature Range | -40 °C to +85 °C (industrial grade) - suitable for embedded industrial and medical environments. |
| ESD Protection | 2.2 kV HBM - meets IEC 61000-4-2 Level 2 for robustness in handheld and field-deployed equipment. |
Pinout & Package
Package: 24-pin QFN (4.0 mm × 4.0 mm, 0.5 mm pitch, 0.55 mm height), RoHS-compliant, exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDD | Digital supply | 1.71–5.5 V core power for USB/I²C logic; decoupling required near pin. |
| VCCD | I/O supply | Configurable I/O voltage rail; sets logic levels for GPIO and I²C pins. |
| USBDP / USBDM | USB differential pair | Full-Speed USB data lines with integrated 1.5 kΩ pull-up on USBDP for device enumeration. |
| SCL / SDA | I²C bus signals | Open-drain outputs compatible with standard I²C pull-ups; support multi-master arbitration. |
| nXRES | Active-low reset | Asynchronous hardware reset input; holds device in reset until released. |
| VBUS | USB bus voltage sense | Monitors host VBUS presence for self-/bus-powered configuration detection. |
| GPIO[7:0] | General-purpose I/O | Configurable as inputs/outputs with internal pull-up/down; usable for handshaking or status indication. |
Key Features
| Feature | Design Value |
|---|---|
| USB Vendor Class Support | Enables custom host application control via Cypress USB library-no OS driver signing or INF editing required. |
| On-chip 48-MHz Oscillator | Eliminates external crystal, reducing BOM count and PCB area while maintaining USB timing compliance. |
| 512-byte Flash Configuration Store | Persists VID/PID, I²C address, GPIO mapping, and BCD settings across power cycles-no external EEPROM needed. |
| Battery Charger Detection (BCD) | Detects USB wall chargers per BC 1.2 spec (peripheral detect only), enabling smart power management in portable devices. |
| USB Suspend Mode | Reduces current draw to <100 µA during USB suspend-critical for battery-operated I²C sensor hubs. |
Applications
| Medical Sensor Hub | POS Peripheral Bridge |
|---|---|
Use Scenario: Integrating temperature, ECG, and SpO₂ sensors with I²C interfaces into a USB-connected patient monitor. IC Role / Device Role / Timing Role: USB-to-I²C protocol translator handling time-critical sensor reads and command responses under host polling. Use Value: Eliminates microcontroller firmware development; leverages existing Windows/Linux CDC/Vendor drivers for plug-and-play deployment. | Use Scenario: Connecting legacy I²C-based barcode scanners or magnetic stripe readers to modern USB-based POS terminals. IC Role / Device Role / Timing Role: Transparent bridge converting USB host commands to I²C register writes and sensor data reads. Use Value: Enables drop-in replacement of aging RS232/parallel interfaces without modifying host software or peripheral hardware. |
| Industrial Test Fixture | Gaming Accessory Controller |
Use Scenario: Controlling I²C-configurable power supplies, DMMs, and signal generators in automated test benches. IC Role / Device Role / Timing Role: USB-controlled I²C master coordinating multi-device calibration sequences with precise timing via host-scheduled transfers. Use Value: Provides deterministic latency and error-checked communication-critical for repeatability in production test environments. | Use Scenario: Adding USB connectivity to I²C-based haptic feedback actuators, LED arrays, or motion sensors in gaming controllers. IC Role / Device Role / Timing Role: Low-latency I²C slave managing real-time peripheral state updates synchronized to USB IN/OUT endpoints. Use Value: Supports sub-10 ms round-trip latency between host game engine and peripheral actuation-verified on Windows 10 with vendor driver. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB-to-I²C bridge applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C65211A-24LTXI | Supports USB-UART/SPI/I²C; 10 GPIOs; default I²C slave; same 24-QFN package. | Broader protocol flexibility but higher cost; requires same configuration utility. | Select when future UART/SPI expansion is anticipated without board redesign. |
| FTDI FT201Q-REEL | USB-to-I²C only; no BCD; 256-byte buffers; 16-pin QFN; no flash config storage. | Limited to fixed VID/PID; requires external EEPROM for customization; no GPIOs. | Choose for cost-sensitive, static-configuration applications where BCD and GPIO are unnecessary. |
Compared with CY7C65216-24LTXIT, CY7C65211A offers protocol extensibility at higher unit cost, while FT201Q sacrifices configurability and system integration for lower BOM cost and simpler layout.
Availability
CY7C65216-24LTXIT is available at Aetrix Electronics and suitable for medical sensor hubs, industrial test fixtures, and POS peripheral bridges requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for CY7C65216-24LTXIT 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 acquired Cypress Semiconductor in 2020 and maintains its USB-Serial bridge portfolio with full technical and supply chain continuity.
The CY7C65216 belongs to the USB-Serial Bridge Controller family, designed specifically to eliminate firmware development for connecting legacy serial peripherals-including I²C, SPI, and UART devices-to modern USB hosts.
FAQ
Does CY7C65216-24LTXIT require custom firmware development?
No. The device is pre-programmed with USB and I²C protocol stacks. All configuration-including VID/PID, I²C addressing, GPIO mapping, and battery charger detection-is performed using Cypress's Windows-based configuration utility. No firmware coding, compilation, or flashing is required for standard operation.
Can CY7C65216-24LTXIT operate as an I²C master?
Yes. Although configured as an I²C slave by default, the device can be reconfigured via its 512-byte flash memory to operate as an I²C master supporting up to 400 kHz. This enables it to initiate transactions with I²C slaves such as sensors or EEPROMs without host intervention.
What USB device classes does CY7C65216-24LTXIT support?
It supports USB Communication Device Class (CDC) for virtual COM port emulation, Personal Healthcare Device Class (PHDC) for medical data streaming, and vendor-specific class for custom host applications using Cypress's USB API-enabling broad OS compatibility without driver signing.
Is external clocking required for USB or I²C operation?
No. The device integrates a precision 48-MHz oscillator for USB timing compliance and derives I²C clocking internally. No external crystal, resonator, or clock source is needed-reducing bill-of-materials and simplifying PCB layout.
CY7C65216-24LTXIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 24-UFQFN Exposed Pad
- Programmable:
- Not Verified
- Protocol:
- USB
- Function:
- Bridge
- Interface:
- GPIO, I2C
- Standards:
- USB 2.0
- Voltage - Supply:
- 1.71V ~ 1.89V, 2V ~ 3.45V, 3.15V ~ 5.25V, 4.35V ~ 5.5V
- Current - Supply:
- 20mA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Supplier Device Package:
- 24-QFN (4x4)
- Grade:
- -
- Qualification:
- -
CY7C65216-24LTXIT FAQ
1.How can I place an order for CY7C65216-24LTXIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C65216-24LTXIT 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 CY7C65216-24LTXIT reliable?
The price and inventory of CY7C65216-24LTXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C65216-24LTXIT is usually 5 days.
3.What payment methods are accepted for CY7C65216-24LTXIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C65216-24LTXIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C65216-24LTXIT?
CY7C65216-24LTXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C65216-24LTXIT 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 CY7C65216-24LTXIT?
For technical support, including CY7C65216-24LTXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C65216-24LTXIT requirements.
6.How does Aetrix verify that CY7C65216-24LTXIT is sourced from the original manufacturer or authorized distributors?
All CY7C65216-24LTXIT 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 CY7C65216-24LTXIT meets industry standards.
7.What is the process for return or replacement of CY7C65216-24LTXIT?
All CY7C65216-24LTXIT units undergo pre-shipment inspection (PSI). If there is an issue with CY7C65216-24LTXIT, 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 CY7C65216-24LTXIT part is unused and in its original packaging.
Return procedure for CY7C65216-24LTXIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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