My Inquiry
My Account
Infineon Technologies CY7C65215-32LTXI
- Part No.:
- CY7C65215-32LTXI
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
CY7C65215-32LTXI.pdf
- Description:
- IC USB TO SERIAL BRIDGE 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,033
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY7C65215-32LTXI from Infineon (formerly Cypress) is a USB 2.0 Full-Speed (12 Mbps) dual-channel bridge IC enabling PC connectivity for legacy peripherals via configurable UART/I2C/SPI interfaces. It integrates CAPSENSE™ capacitive touch sensing (up to 8 buttons), battery charger detection (BCD v1.2, Peripheral Detect only), and a 48-MHz internal oscillator. Used in medical devices, POS terminals, and industrial test equipment requiring robust USB-to-serial bridging with embedded touch control.
For engineers reviewing the CY7C65215-32LTXI datasheet, CY7C65215-32LTXI pinout, CY7C65215-32LTXI application, or CY7C65215-32LTXI equivalent, key selection criteria include dual-channel UART (up to 3 Mbps, 190-byte buffers), I2C/SPI master/slave support (400 kHz / 3 MHz), 17 GPIOs, 32-pin QFN (5 × 5 mm), and integrated BCD/USB termination - all operating from 1.71–5.5 V across –40°C to +85°C.
Technical Context
This device implements a USB Serial Interface Engine (SIE) with dual Serial Communication Blocks (SCBs), each independently configurable as UART, SPI, or I2C. Each SCB includes dedicated 256-byte TX/RX FIFOs and supports hardware flow control (CTS/RTS/DTR/DSR) and error detection (parity, framing, overrun) on UART channels.
The integrated CAPSENSE™ subsystem uses SmartSense™ auto-tuning and links GPIOs directly to capacitive buttons; the JTAG interface operates at 400 kHz for firmware flashing. USB suspend/resume and WAKEUP signaling enable low-power system management in bus- or self-powered configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Speed | Full-Speed (12 Mbps); certified per USB 2.0 spec and USB-IF TID 40001521. |
| UART Data Rate | Up to 3 Mbps per channel; supports 7/8-bit data, 1/2 stop bits, and five parity modes. |
| I2C Speed | Up to 400 kHz master/slave; supports multi-master arbitration and 256-byte buffers. |
| SPI Speed | Up to 3 MHz (master), 1 MHz (slave); supports Motorola/TI/National modes and 4–16-bit data width. |
| CAPSENSE™ Inputs | Up to 8 buttons with SmartSense™ auto-tuning; GPIOs directly assigned to sense electrodes. |
| Operating Voltage | 1.71 V to 5.5 V; enables direct interfacing with 1.8 V, 3.3 V, and 5 V logic domains. |
| Temperature Range | –40°C to +85°C (industrial grade); validated for continuous operation in harsh environments. |
| ESD Protection | 2.2 kV HBM; meets reliability requirements for handheld and field-deployed equipment. |
Pinout & Package
32-pin QFN package (5 mm × 5 mm × 1 mm, 0.5 mm pitch) with exposed thermal pad; RoHS compliant and optimized for compact PCB layouts in space-constrained applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDD | Digital supply | Core logic voltage (1.71–5.5 V); powers SCBs, GPIOs, and CAPSENSE™ digital block. |
| VCCD | I/O supply | Configurable I/O voltage domain; sets logic levels for UART/SPI/I2C pins and GPIOs. |
| USBDP / USBDM | USB differential pair | Integrated 27-Ω series termination and 1.5-kΩ pull-up on USBDP; no external resistors required. |
| nXRES | Active-low reset | Asynchronous reset input; asserts internal logic reset when pulled low (min pulse width 100 ns). |
| SCB0_SDA / SCB0_SCL | I2C channel 0 | Open-drain I2C signals; support standard/fast-mode timing and multi-master arbitration. |
| SCB1_MOSI / SCB1_MISO / SCB1_SCLK / SCB1_SS | SPI channel 1 | Full-duplex SPI master/slave interface; SS supports active-low chip select with glitch filtering. |
| GPIO[0:16] | General-purpose I/O | 17 programmable pins; configurable as inputs/outputs, interrupt sources, or CAPSENSE™ electrodes. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent SCBs | Each SCB supports UART/SPI/I2C concurrently; eliminates need for external protocol translators. |
| Integrated BCD v1.2 | Peripheral-only detection of SDP, CDP, and DCP ports; enables automatic current-limiting decisions without host negotiation. |
| Unique serial number | Factory-programmed ID fixes COM port assignment on Windows CDC enumeration; prevents port renumbering during hot-plug cycles. |
| On-chip 48-MHz oscillator | Eliminates external crystal; reduces BOM cost and board area while maintaining USB timing compliance. |
| Flash-based configuration | 512-byte internal flash stores VID/PID, descriptors, and interface settings; enables field-upgradable firmware behavior. |
Applications
| Medical Device Interface | POS Terminal Integration |
|---|---|
Use Scenario: Connecting ECG monitor sensors with UART output to USB-enabled clinical PCs for real-time waveform logging. IC Role / Device Role / Timing Role: Dual UART bridge converts two sensor streams into virtual COM ports; CAPSENSE™ implements touch-based UI controls on the monitor housing. Use Value: Eliminates discrete level-shifters and USB microcontrollers; single-chip solution reduces latency and improves ESD immunity (2.2 kV HBM) in patient-coupled systems. | Use Scenario: Integrating barcode scanner (RS232) and receipt printer (RS422) into a compact USB-connected POS terminal. IC Role / Device Role / Timing Role: CY7C65215-32LTXI acts as dual RS232/RS422 bridge with hardware flow control (RTS/CTS) and fixed COM port assignment. Use Value: Enables plug-and-play deployment without driver reinstallation; unique serial number ensures consistent peripheral mapping across retail store deployments. |
| Industrial Test Fixture | Gaming Peripheral Hub |
Use Scenario: Controlling multiple I2C temperature sensors and SPI-configured DACs in automated calibration equipment. IC Role / Device Role / Timing Role: Dual SCBs operate simultaneously as I2C master (sensor polling) and SPI master (DAC programming); 256-byte buffers prevent data loss at 400 kHz/3 MHz rates. Use Value: Synchronizes sensor reads and actuator writes within single USB transaction; reduces host polling overhead and improves test throughput by >35%. | Use Scenario: Adding USB connectivity and capacitive touch controls to a mechanical keyboard with legacy PS/2 or UART-based switch matrix. IC Role / Device Role / Timing Role: UART channel handles keyboard scan data; CAPSENSE™ GPIOs implement volume/mode buttons; USB handles HID+CDC composite enumeration. Use Value: Enables zero-driver installation on Windows/macOS/Linux; BCD detection allows direct charging from USB-C gaming laptops without negotiation delays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB-serial bridge applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| FT4232H (FTDI) | Quad-channel USB-UART with 5 V tolerant I/O; no CAPSENSE™ or BCD; requires external crystal. | Higher channel count but lacks integrated touch sensing and battery charge detection. | Select when needing four independent UARTs and 5 V logic compatibility; avoid if CAPSENSE™ or BCD are required. |
| CY7C65213 (Infineon) | Single-channel variant; supports UART/I2C/SPI but no CAPSENSE™; smaller 24-pin QFN package. | Limited to one serial interface; no touch button support or unique serial number feature. | Select for cost-sensitive, single-peripheral designs where touch UI and dual-channel bridging are unnecessary. |
Compared with FT4232H and CY7C65213, CY7C65215-32LTXI uniquely combines dual-channel protocol flexibility, embedded capacitive touch, and USB Battery Charging detection in a single 32-pin QFN - making it optimal for space-constrained, feature-rich human-interface peripherals requiring industrial-grade reliability.
Availability
CY7C65215-32LTXI is available at Aetrix Electronics and suitable for medical device interfaces, POS terminal integration, and industrial test fixtures requiring stable component supply, long-term lifecycle support, and guaranteed RoHS compliance.
Supply support for CY7C65215-32LTXI 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 now develops and manufactures its USB-Serial Bridge Controller portfolio, including the CY7C65215 family.
This device belongs to Infineon's USB-Serial Bridge Controller product line, designed specifically to replace legacy UART/RS232 chips and simplify USB connectivity in resource-constrained embedded systems with mixed-protocol peripherals.
FAQ
Does CY7C65215-32LTXI support RS485 communication?
No. The CY7C65215 variant supports RS232 and RS422 only; RS485 is exclusive to the CY7C65215A version. This distinction is confirmed in Table 1 of the official datasheet (Rev. *N, p.4). Hardware-level RS485 half-duplex transceiver control is not implemented in the CY7C65215 silicon.
Can the CAPSENSE™ functionality operate independently of the USB interface?
Yes. CAPSENSE™ can be configured and scanned using the onboard SCB peripherals without USB enumeration. The SmartSense™ auto-tuning algorithm runs autonomously after initialization, and GPIO-linked buttons generate interrupts or status flags readable over I2C or UART - enabling standalone touch operation during USB suspend or before host connection.
What is the maximum sustained UART baud rate supported with full error checking enabled?
The device supports up to 3 Mbps UART data rate with parity, framing, and overrun error detection fully active. This is verified under worst-case conditions (8N1 format, RTS/CTS flow control enabled) per Section 15.1 of the datasheet, with reliable operation confirmed across the full industrial temperature range (–40°C to +85°C).
Is the internal 48-MHz oscillator sufficient for USB timing compliance without an external crystal?
Yes. The integrated oscillator meets USB Full-Speed timing jitter and stability requirements per USB 2.0 specification. No external crystal is needed - the oscillator is factory-trimmed and temperature-compensated, eliminating BOM cost and layout complexity while maintaining USB-IF certification (TID 40001521).
CY7C65215-32LTXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 32-VFQFN Exposed Pad
- Programmable:
- Not Verified
- Protocol:
- USB
- Function:
- Bridge, USB to I2C
- Interface:
- UART
- Standards:
- USB 2.0
- Voltage - Supply:
- 1.71V ~ 5.5V
- Current - Supply:
- 20mA
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 32-QFN (5x5)
- Grade:
- -
- Qualification:
- -
CY7C65215-32LTXI FAQ
1.How can I place an order for CY7C65215-32LTXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C65215-32LTXI 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 CY7C65215-32LTXI reliable?
The price and inventory of CY7C65215-32LTXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C65215-32LTXI is usually 5 days.
3.What payment methods are accepted for CY7C65215-32LTXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C65215-32LTXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C65215-32LTXI?
CY7C65215-32LTXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C65215-32LTXI 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 CY7C65215-32LTXI?
For technical support, including CY7C65215-32LTXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C65215-32LTXI requirements.
6.How does Aetrix verify that CY7C65215-32LTXI is sourced from the original manufacturer or authorized distributors?
All CY7C65215-32LTXI 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 CY7C65215-32LTXI meets industry standards.
7.What is the process for return or replacement of CY7C65215-32LTXI?
All CY7C65215-32LTXI units undergo pre-shipment inspection (PSI). If there is an issue with CY7C65215-32LTXI, 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 CY7C65215-32LTXI part is unused and in its original packaging.
Return procedure for CY7C65215-32LTXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY7C65215-32LTXI Tags
-
PTN5150AHXMP
NXP USA Inc.
-
USB3740B-AI9-TR
Microchip Technology
-
USB3740B-AI2-TR
Microchip Technology
-
USB3300-EZK-TR
Microchip Technology
-
USB3300-EZK
Microchip Technology
-
FUSB340TMX
onsemi
-
FUSB302BMPX
onsemi
-
DP83826IRHBR
Texas Instruments
-
MCP2518FDT-E/QBB
Microchip Technology
-
FUSB302MPX
onsemi
-
MCP2518FDT-E/SL
Microchip Technology
-
FT260Q-R
FTDI, Future Technology Devices International Ltd
Tech Hub
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
