FT230XQ-R: USB to UART Interface IC, 3 Mbaud, 512 byte buffers, 3.3V

The FT230XQ-R is an integrated circuit designed to provide a USB to serial UART interface. This single-chip solution handles the entire USB protocol in-chip, requiring no specific firmware programming from the user. It features a USB to asynchronous serial data transfer interface, with data rates ranging from 300 baud to 3 Mbaud, supporting RS422, RS485, and RS232 levels at TTL voltage levels. The device includes a fully integrated 2048 byte multi-time programmable (MTP) memory for storing device descriptors and CBUS I/O configuration, and it does not require an external crystal for clock generation, thanks to its integrated clock generation capabilities.

The FT230XQ-R is equipped with a 512 byte receive buffer and a 512 byte transmit buffer, utilizing buffer smoothing technology to allow for high data throughput. It supports USB Power Configurations for bus-powered, self-powered, and bus-powered with power switching modes. Additionally, the IC features an integrated +3.3V level converter for USB I/O, configurable I/O pin output drive strength, and an integrated power-on-reset circuit. It is compatible with USB 2.0 Full Speed and has an extended operating temperature range of -40 to 85°C. The FT230XQ-R is available in compact Pb-free 16 pin SSOP and 16 pin QFN packages, both RoHS compliant.

Key Specifications and Features

  • USB to asynchronous serial data transfer interface
  • Data transfer rates: 300 baud to 3 Mbaud
  • Integrated 2048 byte MTP memory
  • No external crystal required for clock generation
  • 512 byte receive and transmit buffers
  • USB Power Configurations: bus-powered, self-powered, bus-powered with power switching
  • Integrated +3.3V level converter for USB I/O
  • Configurable I/O pin output drive strength: 4 mA (min) to 16 mA (max)
  • USB 2.0 Full Speed compatible
  • Operating temperature: -40 to 85°C
  • Package options: 16 pin SSOP and 16 pin QFN (both RoHS compliant)

FT230XQ-R Datasheet

FT230XQ-R datasheet (PDF)

FT230XQ-R Substitutes
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Integrated Circuits

General information

USB to UART interface ICs, like the FT230XQ-R, are pivotal in bridging the gap between USB and serial communication protocols. These integrated circuits convert signals between these two widely used interfaces, enabling devices with serial interfaces to connect and communicate with USB-equipped computers and systems. Such ICs are essential in modern electronics where USB has become the standard for data communication, but legacy serial interfaces are still in use.

When selecting a USB to UART interface IC, engineers should consider data transfer rates, buffer sizes, and compatibility with USB standards. The data transfer rate impacts how quickly data can be moved between devices, which is critical for applications requiring high-speed communications. Buffer size determines the amount of data that can be held during transfer processes, affecting throughput and efficiency. Compatibility with current USB standards ensures the IC can interface with contemporary devices and systems.

Additionally, the power configuration options (bus-powered, self-powered, or bus-powered with power switching) offer flexibility in different application scenarios. The presence of integrated memory for device descriptors and configuration data simplifies the setup process, making these ICs user-friendly. The operating temperature range is also an important factor, especially for industrial or outdoor applications where conditions can be extreme.

Overall, USB to UART interface ICs are versatile components that facilitate communication between devices with different interface standards, playing a crucial role in system integration and device interoperability.

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