CY7C652148-24LTXIT

Controllers Overview

The CY7C652148-24LTXIT is a USB-SPI single-channel bridge controller from Infineon Technologies. It features a Full-Speed (12 Mbps) USB 2.0 interface compliant with Battery Charging Specification Rev. 1.2, supporting Peripheral Detect. The device integrates a configurable SPI interface operating up to 3 MHz in master mode and 1 MHz in slave mode, with data widths from 4 to 16 bits. It includes 256-byte transmit and receive buffers, six GPIOs, and 512 bytes of flash memory for configuration storage. Operating voltage ranges from 1.71 V to 5.5 V, with an industrial temperature range of –40 °C to +85 °C. The component is housed in a 24-pin QFN package.

Controllers Feature Summary

• Integrates a USB 2.0 Full-Speed transceiver with built-in termination resistors and BCD support for peripheral detection.
• Provides a single-channel SPI interface supporting Motorola, TI, and National Microwire protocols with configurable data widths.
• Includes internal 48-MHz and 32-kHz oscillators, eliminating the need for external clock components.
• Features 512-byte flash memory for storing VID, PID, descriptors, and system configuration parameters.

Controllers Applications

• Medical and healthcare devices requiring USB connectivity
• Point-of-Sale (POS) terminals
• Test and measurement systems
• Gaming systems and set-top box PC-USB interfaces
• Industrial and networking equipment

Controllers Procurement Notes

Verify the specific ordering suffix 'T' indicates tape and reel packaging when sourcing. Confirm that the industrial temperature grade (-40 °C to +85 °C) matches the application environment requirements. Ensure the host system supports the required Windows, Mac OS-X, or Linux drivers provided by Infineon for proper enumeration and communication.

Controllers Selection Notes

Select this component when a single-channel SPI bridge is required without UART or I2C functionality. Compare against the CY7C65214D if dual-channel capability is needed. Verify that the 24-pin QFN package fits the PCB layout constraints. Ensure the design accommodates the 512-byte flash limit for configuration data storage needs.

Controllers Part Context

This part belongs to the Cypress Semiconductor USB Serial Bridge Controller family, now integrated into Infineon's portfolio. It serves as a cost-effective solution for enabling USB connectivity in legacy peripherals with serial interfaces. The device simplifies design by integrating necessary clocks and regulators, reducing external component count compared to discrete solutions.

Controllers Replacement Considerations

CY7C652148-24LTXI is the tray-packaged equivalent of this part number. For dual-channel requirements, consider the CY7C65214D series. Single-channel alternatives with different interface capabilities include the CY7C65213 (UART) or CY7C65211 (SPI/I2C/UART).

Controllers FAQ

What charging port types does the CY7C652148 support?

It supports Standard Downstream Port (SDP), Charging Downstream Port (CDP), and Dedicated Charging Port (DCP) detection according to USB Battery Charging Specification Rev. 1.2.

Can the SPI interface operate in both master and slave modes?

Yes, the device supports both SPI Master and SPI Slave modes, which can be configured using the provided configuration utility.

How is the device reset?

The device can be reset via the active-low nXRES pin or through a reliable power-on reset mechanism.