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Infineon Technologies CY7C65216-24LTXI
- Part No.:
- CY7C65216-24LTXI
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 24-UFQFN Exposed Pad
- Datasheet:
-
CY7C65216-24LTXI.pdf
- Description:
- USB FULL-SPEED PERIPHERALS
- Quantity:
- Payment:
- Shipping:
Inventory:2,359
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Product details
Overview
CY7C65216-24LTXI 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 with 256-byte TX/RX FIFOs and 8 GPIOs. It integrates a 48-MHz oscillator, USB termination resistors, and battery charger detection (BCD v1.2 Peripheral Detect), enabling legacy I²C peripherals to connect directly to USB hosts in medical devices and POS terminals.
For engineers reviewing the CY7C65216-24LTXI datasheet, CY7C65216-24LTXI pinout, CY7C65216-24LTXI application, or CY7C65216-24LTXI equivalent, key selection criteria include I²C master/slave configurability, 400 kHz max clock rate, 1.71–5.5 V operating voltage, industrial temperature range (–40 °C to +85 °C), and vendor-class USB protocol support without firmware changes.
Technical Context
The device implements a hardware-based USB Serial Interface Engine (SIE) compliant with USB 2.0 Full-Speed and Battery Charging Specification v1.2 (Peripheral Detect only). It uses a fixed 48-MHz internal oscillator for USB timing and supports both bus-powered and self-powered configurations via VBUS/VDDD routing.
I²C communication is handled by a dedicated serial block with configurable master/slave mode, multi-master arbitration, and automatic ACK/NACK generation. The 512-byte flash stores VID/PID, descriptors, I²C settings, GPIO mapping, and BCD configuration - all modifiable via Windows-based utility without reprogramming firmware.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Speed | Full-Speed at 12 Mbps - enables direct connection to standard USB host controllers without external PHY. |
| I²C Clock Rate | Up to 400 kHz - supports fast-mode I²C peripherals including sensors, EEPROMs, and PMICs. |
| FIFO Depth | 256 bytes TX + 256 bytes RX - reduces host polling frequency and improves burst data throughput. |
| GPIO Count | 8 pins - configurable as inputs/outputs with interrupt capability for status signaling or control handshaking. |
| Operating Voltage | 1.71 V to 5.5 V - allows direct interfacing with 1.8 V, 3.3 V, and 5 V I²C buses without level shifters. |
| Temperature Range | –40 °C to +85 °C - qualified for industrial and medical environments where ambient stability is critical. |
| ESD Rating | 2.2 kV HBM - provides robustness against handling-induced transients during assembly and field operation. |
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 and GPIOs; decoupling required near pin. |
| VBUS | USB bus voltage sense | Monitors USB host presence; enables auto-configuration between bus/self-powered modes. |
| USBDP / USBDM | USB differential pair | Direct Full-Speed USB interface with integrated 1.5 kΩ pull-up on USBDP for device enumeration. |
| SCL / SDA | I²C clock/data | Open-drain outputs compatible with standard I²C bus voltages; internal weak pull-ups disabled by default. |
| GPIO[0:7] | General-purpose I/O | Configurable digital I/O with programmable drive strength and interrupt-on-change capability. |
| nXRES | Active-low reset | Asynchronous reset input; asserts internal logic reset when pulled low, independent of USB state. |
Key Features
| Feature | Design Value |
|---|---|
| USB Vendor Device Class | Enables custom host application control via Cypress USB API instead of CDC driver dependency. |
| Configurable I²C Role | Runtime-selectable master or slave mode - eliminates need for separate master-only or slave-only bridge ICs. |
| On-chip 48-MHz Oscillator | Removes external crystal requirement, reducing BOM count and PCB area while meeting USB timing tolerance. |
| 512-byte Flash Memory | Persists VID/PID, descriptors, GPIO mappings, and I²C settings across power cycles - no external EEPROM needed. |
| Battery Charger Detection | Identifies USB charging ports per BC v1.2 spec - enables intelligent power management in portable medical and POS devices. |
Applications
| Medical Health Monitoring | Point-of-Sale Terminal |
|---|---|
Use Scenario: Connecting I²C-based temperature, ECG, or SpO₂ sensors to a USB-enabled tablet or PC for real-time diagnostics. IC Role / Device Role: USB-to-I²C protocol translator acting as transparent bridge between host OS and sensor peripherals. Use Value: Eliminates need for microcontroller firmware development; supports plug-and-play integration using vendor-class drivers and Cypress API. | Use Scenario: Adding USB connectivity to legacy I²C barcode scanners or magnetic stripe readers in retail checkout systems. IC Role / Device Role: I²C slave interface that presents as a USB vendor device, enabling direct host command/response over bulk transfers. Use Value: Reduces system latency vs. UART bridges; supports deterministic I²C timing up to 400 kHz for high-throughput scanner data capture. |
| Industrial Sensor Hub | Test & Measurement Fixture |
Use Scenario: Aggregating multiple I²C environmental sensors (humidity, pressure, gas) into a single USB-connected node for factory floor monitoring. IC Role / Device Role: Configurable I²C master polling sensors and buffering data in 256-byte FIFO before USB transmission. Use Value: Enables synchronized multi-sensor reads without host CPU intervention; 8 GPIOs support trigger/control signals for calibration sequences. | Use Scenario: Interfacing programmable I²C DACs, ADCs, or calibration EEPROMs to a USB-controlled test bench PC. IC Role / Device Role: USB-configurable I²C master initiating precise register writes and reads under host script control. Use Value: Provides deterministic I²C timing and error recovery (NACK retry) - critical for repeatable calibration accuracy and traceability. |
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 | 10 GPIOs, supports USB-UART/I²C/SPI; default I²C slave; same 24-QFN package. | Broader protocol flexibility but higher pin count required for UART/SPI use cases. | Select when future expansion to UART or SPI interfaces is anticipated without board redesign. |
| FTDI FT201Q-TR | QFN-24, USB-to-I²C only, no GPIOs, no BCD, no flash config storage; requires external EEPROM for VID/PID. | Limited configurability; lacks battery charge detection and runtime I²C role switching. | Choose for cost-sensitive, fixed-function deployments where BCD and GPIO are unnecessary. |
Compared with CY7C65216-24LTXI, CY7C65211A offers protocol versatility at the cost of increased complexity, while FT201Q trades configurability and integrated features for lower unit cost and simpler qualification - making CY7C65216 optimal for balanced I²C bridge deployments requiring industrial temp range and BCD support.
Availability
CY7C65216-24LTXI is available at Aetrix Electronics and suitable for medical health monitoring, point-of-sale terminals, and industrial sensor hubs requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for CY7C65216-24LTXI 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 global semiconductor leader headquartered in Munich, Germany, specializing in power systems, automotive MCUs, and connectivity solutions with strong emphasis on reliability and industrial-grade qualification.
CY7C65216 belongs to the USB-Serial Bridge Controller product line, designed specifically to simplify USB connectivity for legacy I²C, SPI, and UART peripherals without firmware development or host driver customization.
FAQ
Does CY7C65216-24LTXI require external crystal or oscillator?
No. The device integrates a precision 48-MHz oscillator meeting USB Full-Speed timing requirements, eliminating the need for external crystals, capacitors, or clock generators. This reduces bill-of-materials cost and PCB layout complexity while maintaining USB compliance across temperature and voltage ranges.
Can CY7C65216-24LTXI operate as I²C master and slave in the same design?
No - it supports either master or slave mode per configuration, but not simultaneously. Mode selection is stored in flash memory and persists across power cycles. Switching requires reconfiguration via the Windows utility; runtime dynamic switching is not supported.
What USB driver models does CY7C65216-24LTXI support on Windows?
It supports both Virtual COM Port (VCP) via CDC driver and vendor-class access via Cypress USB Serial Library (USBSER). Windows 7 through 10 (32/64-bit) are fully supported; no additional INF signing is required for standard deployment due to Microsoft WHQL certification.
Is CY7C65216-24LTXI compatible with Linux kernel versions prior to 2.6.35?
No. Official Linux support begins at kernel version 2.6.35, which introduced the cypress_m8 driver module. Earlier kernels lack native driver support and require custom backported modules or userspace libusb-based solutions, increasing validation effort and reducing out-of-box usability.
CY7C65216-24LTXI 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, 3.15V ~ 3.45V, 4.35V ~ 5.25V, 2V ~ 5.5V
- Current - Supply:
- 20mA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Supplier Device Package:
- 24-QFN (4x4)
- Grade:
- -
- Qualification:
- -
CY7C65216-24LTXI FAQ
1.How can I place an order for CY7C65216-24LTXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C65216-24LTXI 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 CY7C65216-24LTXI reliable?
The price and inventory of CY7C65216-24LTXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C65216-24LTXI is usually 5 days.
3.What payment methods are accepted for CY7C65216-24LTXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C65216-24LTXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C65216-24LTXI?
CY7C65216-24LTXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C65216-24LTXI 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 CY7C65216-24LTXI?
For technical support, including CY7C65216-24LTXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C65216-24LTXI requirements.
6.How does Aetrix verify that CY7C65216-24LTXI is sourced from the original manufacturer or authorized distributors?
All CY7C65216-24LTXI 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 CY7C65216-24LTXI meets industry standards.
7.What is the process for return or replacement of CY7C65216-24LTXI?
All CY7C65216-24LTXI units undergo pre-shipment inspection (PSI). If there is an issue with CY7C65216-24LTXI, 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 CY7C65216-24LTXI part is unused and in its original packaging.
Return procedure for CY7C65216-24LTXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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