CY7C65223D-32LTXI

Overview

The CY7C65223D-32LTXI is a USB-to-dual UART bridge controller manufactured by Infineon Technologies, formerly Cypress Semiconductor. It supports USB 2.0 Full-Speed operation at 12 Mbps and provides two independent UART channels with hardware flow control. The device integrates Battery Charging Detection (BCD) compliant with USB BC 1.2 specifications. It features four general-purpose input/output pins and operates within a supply voltage range of 1.71V to 3.45V across its internal regulators.

Feature Summary

• Integrates dual UART interfaces with hardware flow control for reliable serial communication
• Includes built-in Battery Charging Detection compliant with USB BC 1.2 standards
• Provides four configurable general-purpose input/output pins for system flexibility

Applications

• USB-to-serial conversion in embedded systems
• Battery charging applications requiring BCD support
• Industrial equipment utilizing RS-485 or standard UART links
• Consumer electronics needing USB connectivity for serial data transfer

Procurement Notes

Verify the manufacturer designation as Infineon Technologies, as Cypress Semiconductor was acquired. Confirm the specific suffix indicates the QFN-32 package and industrial temperature range if required. Ensure compatibility with the target system's voltage levels and check for updated documentation from the current manufacturer regarding pinout and electrical characteristics.

Selection Notes

Select this component when dual-channel serial communication over USB is required without external logic. The integrated BCD feature simplifies power management in battery-powered devices. Consider the 12 Mbps full-speed limitation compared to high-speed alternatives. Verify that the QFN-32 package fits the PCB layout constraints and thermal requirements of the design.

Part Context

This part belongs to the EZ-USB FX series of interface controllers designed for bridging USB hosts to peripheral devices. It replaces older discrete solution designs by integrating the USB controller and UART logic into a single chip. The product line focuses on providing robust serial connectivity for legacy systems while leveraging modern USB standards for data exchange and power delivery.

Replacement Considerations

Check for direct cross-reference part numbers from Infineon's current portfolio. Verify if newer revisions offer improved performance or different packaging options. Ensure any substitute maintains the same dual UART functionality and BCD compliance to avoid redesigning the host software or hardware interface.