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Infineon Technologies CY7C652148-24LTXIT
- Part No.:
- CY7C652148-24LTXIT
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 24-UFQFN Exposed Pad
- Datasheet:
-
CY7C652148-24LTXIT.pdf
- Description:
- USB Full-Speed Peripherals
- Quantity:
- Payment:
- Shipping:
Inventory:2,419
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Product details
Overview
CY7C652148-24LTXIT from Infineon Technologies (formerly Cypress) is a USB 2.0 Full-Speed (12 Mbps) to SPI single-channel bridge controller with integrated 48-MHz oscillator, 6 GPIOs, and 512-byte configuration flash. It supports SPI master/slave modes (4–16-bit data width), 256-byte TX/RX FIFOs, and USB vendor-class enumeration for custom host application control. Used in medical devices, POS terminals, and industrial test equipment requiring reliable USB-to-legacy-SPI interfacing.
For engineers reviewing the CY7C652148-24LTXIT datasheet, CY7C652148-24LTXIT pinout, CY7C652148-24LTXIT application, or CY7C652148-24LTXIT equivalent, key selection criteria include USB vendor-class compatibility, configurable SPI timing (up to 3 MHz master), bus/self-powered operation (1.71–5.5 V), industrial temperature range (–40 °C to +85 °C), and QFN-24 package footprint.
Technical Context
The device implements a dedicated USB Serial Interface Engine (SIE) compliant with USB 2.0 Full-Speed and Battery Charging Specification v1.2 (peripheral detect only). It uses an internal 48-MHz oscillator for USB timing and includes integrated USB termination resistors and VBUS detection circuitry.
SPI interface is fully configurable via on-chip flash: supports Motorola, TI, and National modes; programmable clock polarity/phase; and selectable master/slave role. GPIOs are software-configurable for digital I/O, interrupt input, or reset assertion, with no firmware development required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Speed | Full-Speed (12 Mbps); enables direct connection to standard USB hosts without external PHY. |
| SPI Data Rate | Up to 3 MHz (master), 1 MHz (slave); supports real-time sensor or memory access over SPI. |
| SPI Data Width | 4 to 16 bits per transfer; accommodates diverse peripheral register maps and data protocols. |
| FIFO Depth | 256 bytes TX + 256 bytes RX; reduces host polling frequency and improves throughput efficiency. |
| Operating Voltage | 1.71 V to 5.5 V; allows direct interface with 1.8 V, 3.3 V, or 5 V logic systems without level shifters. |
| Temperature Range | –40 °C to +85 °C (industrial grade); qualified for deployment in uncontrolled environments like factory floors. |
| 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, wettable flank capable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDD | Digital supply | Core logic voltage (1.71–5.5 V); powers USB SIE, SPI block, and GPIOs. |
| VCCD | I/O supply | Configurable I/O voltage rail; sets SPI/GPIO logic levels independently of VDDD. |
| USBDP / USBDM | USB differential pair | Direct Full-Speed USB interface; integrated 1.5-kΩ pull-up on USBDP for device enumeration. |
| SCLK / MOSI / MISO / SS# | SPI interface signals | Configurable as master or slave; supports all three SPI mode variants (CPOL/CPHA). |
| GPIO[0:5] | General-purpose I/O | Software-configurable as input/output/pull-up/pull-down/interrupt source; no external components needed. |
| nXRES | Active-low reset input | Asynchronous hardware reset; asserts internal logic reset when pulled low. |
| VBUS | USB bus voltage sense | Monitors host-supplied 5 V; enables automatic power mode selection (bus vs. self-powered). |
Key Features
| Feature | Design Value |
|---|---|
| USB Vendor-Class Enumeration | Enables custom host-side driver development without CDC/VCOM restrictions; ideal for proprietary protocol stacks. |
| On-Chip Configuration Flash | 512-byte nonvolatile memory stores VID/PID, SPI mode, GPIO mapping, and BCD settings-no external EEPROM required. |
| Integrated 48-MHz Oscillator | Eliminates external crystal or clock source; reduces BOM count and PCB area while meeting USB timing jitter requirements. |
| Battery Charger Detection (BCD) | Supports USB BC 1.2 peripheral detection only; allows embedded devices to identify charging ports and manage battery charge state. |
| Self-Powered / Bus-Powered Flexibility | Automatic mode detection via VBUS sensing; simplifies power architecture design across portable and fixed installations. |
Applications
| Medical Point-of-Care Monitor | Industrial Test Fixture |
|---|---|
Use Scenario: Portable glucose meter connects to PC via USB for firmware updates and patient data export. IC Role / Device Role / Timing Role: USB-SPI bridge translates host commands into SPI writes to onboard ADC and flash memory. Use Value: Eliminates need for MCU firmware development; leverages Windows/Linux driver support for plug-and-play operation. | Use Scenario: Automated test system reads calibration data from SPI EEPROMs on DUT boards. IC Role / Device Role / Timing Role: Acts as USB-accessible SPI master with precise 3-MHz clock for fast EEPROM readback. Use Value: Enables host PC to directly address multiple SPI peripherals without custom microcontroller firmware. |
| POS Terminal Peripheral Adapter | Gaming Accessory Interface |
Use Scenario: Legacy magnetic stripe reader interfaces to modern USB-based POS software via adapter board. IC Role / Device Role / Timing Role: USB vendor device presenting custom HID-like interface; SPI handles raw track data capture. Use Value: Maintains legacy hardware investment while enabling OS-agnostic host communication via libusb. | Use Scenario: RGB lighting controller on gaming keyboard uses SPI to drive LED driver ICs. IC Role / Device Role / Timing Role: USB-SPI bridge receives lighting pattern commands from PC and forwards via SPI at 1 MHz slave rate. Use Value: Decouples lighting control logic from host CPU; enables real-time visual effects without USB latency bottlenecks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB-to-SPI bridge applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C65211A-24LTXI | 10 GPIOs, supports USB-UART/I2C/SPI; larger flash (1 kB); same QFN-24 package. | Required when multi-protocol flexibility (e.g., UART debug + SPI control) or additional GPIOs are needed. | Select CY7C65211A if future expansion to UART or I2C is anticipated; otherwise CY7C652148 offers lower cost and simpler configuration. |
| FTDI FT232H | USB 2.0 High-Speed (480 Mbps); supports MPSSE for JTAG/SPI/I2C; no native SPI slave mode; requires external level shifters for 1.8 V I/O. | Suitable for high-bandwidth debugging or FPGA programming, but over-specified and more complex for basic SPI bridging. | Choose FT232H only when High-Speed USB or JTAG boundary scan is required; CY7C652148 delivers better integration for dedicated SPI bridging. |
Compared with CY7C65211A-24LTXI and FT232H, CY7C652148-24LTXIT provides optimal balance of SPI-specific performance, minimal external components, and industrial-grade reliability-making it the preferred choice for cost-sensitive, single-protocol USB-SPI applications.
Availability
CY7C652148-24LTXIT is available at Aetrix Electronics and suitable for medical point-of-care monitors, industrial test fixtures, and POS terminal adapters requiring stable component supply and long-term lifecycle support.
Supply support for CY7C652148-24LTXIT 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 global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive, industrial, and connectivity solutions.
CY7C652148 belongs to the USB-Serial Bridge Controller product line, designed specifically to simplify USB connectivity for legacy serial peripherals-eliminating firmware development while delivering robust, production-ready USB interface capability.
FAQ
Does CY7C652148-24LTXIT require external crystal or clock source?
No. The device integrates a precision 48-MHz oscillator that meets USB Full-Speed timing requirements. This eliminates the need for an external crystal, reducing bill-of-materials count, PCB footprint, and layout complexity. The oscillator is factory-trimmed and does not require user calibration or external loading capacitors.
Can CY7C652148-24LTXIT operate as both SPI master and slave?
Yes. The SPI interface is fully configurable via the on-chip flash memory to operate in either master or slave mode. Configuration is performed using Cypress's USB-Serial Configuration Utility-no firmware coding or reprogramming is required. Mode selection persists across power cycles.
What USB device classes does CY7C652148-24LTXIT support?
CY7C652148-24LTXIT supports USB vendor-class enumeration by default, allowing custom host applications to communicate directly via libusb. It does not natively support CDC (VCOM) or PHDC classes-those require different parts like CY7C65213A. Vendor-class mode ensures full control over data packet structure and protocol semantics.
Is CY7C652148-24LTXIT compatible with Linux kernel versions prior to 2.6.35?
No. Official Linux driver support begins at kernel version 2.6.35. Earlier kernels lack the necessary USB-serial infrastructure and vendor-class handling. For legacy systems, users must implement custom userspace drivers using libusb, or upgrade the kernel to ensure full functionality including automatic device enumeration and permission handling.
CY7C652148-24LTXIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 24-UFQFN Exposed Pad
- Programmable:
- Not Verified
- Protocol:
- USB
- Function:
- Bridge
- Interface:
- GPIO, SPI
- 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:
- -
CY7C652148-24LTXIT FAQ
1.How can I place an order for CY7C652148-24LTXIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C652148-24LTXIT 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 CY7C652148-24LTXIT reliable?
The price and inventory of CY7C652148-24LTXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C652148-24LTXIT is usually 5 days.
3.What payment methods are accepted for CY7C652148-24LTXIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C652148-24LTXIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C652148-24LTXIT?
CY7C652148-24LTXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C652148-24LTXIT 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 CY7C652148-24LTXIT?
For technical support, including CY7C652148-24LTXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C652148-24LTXIT requirements.
6.How does Aetrix verify that CY7C652148-24LTXIT is sourced from the original manufacturer or authorized distributors?
All CY7C652148-24LTXIT 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 CY7C652148-24LTXIT meets industry standards.
7.What is the process for return or replacement of CY7C652148-24LTXIT?
All CY7C652148-24LTXIT units undergo pre-shipment inspection (PSI). If there is an issue with CY7C652148-24LTXIT, 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 CY7C652148-24LTXIT part is unused and in its original packaging.
Return procedure for CY7C652148-24LTXIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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