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FT231XS-R-U
SSOP-20 (5.3x7.2mm, 0.65mm pitch)
The FT231XS-R-U is a Ftdi product designed for electronic applications. It features compact design with reliable performance characteristics suitable for various industrial and consumer applications.
Package: SSOP-20
High reliability, wide operating range, compact SSOP-20 package
Industrial control, Consumer electronics, Communication equipment, Automotive electronics
The FT231XS-R-U is a USB to full-handshake UART interface IC from FTDI (Future Technology Devices International), packaged in an SSOP-20 tube format. This single-chip solution converts USB signals to asynchronous serial UART with full modem control and handshaking signals, eliminating the need for USB-specific firmware development. It features integrated 2048-byte MTP memory for device configuration, built-in USB termination resistors, and integrated clock generation requiring no external crystal. The device supports data rates from 300 baud to 3 Mbaud and includes USB battery charger detection. With royalty-free VCP and D2XX drivers across major operating systems, it provides a simple, reliable USB-to-serial solution for embedded and consumer applications.
The FT231X functions as a USB to UART bridge that handles the entire USB protocol on-chip, presenting a standard serial UART interface to the application side. When connected to a USB host, the device enumerates as a USB CDC class device or custom vendor device depending on driver selection. Data from the USB host is received via the USB 2.0 full-speed interface, buffered in the receive FIFO (128 bytes), and transmitted out the UART interface. Conversely, incoming UART data is buffered in the transmit FIFO (256 bytes) and sent back over USB. The integrated MTP memory stores device descriptors and configuration options. The device includes internal 3.3V/1.8V LDO regulators and power-on reset, requiring minimal external components. USB battery charger detection allows peripherals to identify dedicated charging ports for higher-current battery charging.
| Pin | Name | Type | Function |
|---|---|---|---|
| 1-2 | USBDM/USBDP | I/O | USB Data Minus/Plus (D-/D+) |
| 3-4 | VCCIO/VCC | Power | I/O supply / Main supply |
| 5-6 | GND/3V3OUT | Power | Ground / 3.3V regulator output |
| 7 | TXD | Output | UART Transmit Data Output |
| 8 | RXD | Input | UART Receive Data Input |
| 9-10 | RTS#/CTS# | I/O | Request/Clear To Send (hardware flow control) |
| 11-12 | DTR#/DSR# | I/O | Data Terminal/Data Set Ready |
| 13-14 | DCD#/RI# | Input | Data Carrier Detect / Ring Indicator |
| 15-16 | CBUS0-CBUS1 | I/O | Configurable I/O bus pins |
| 17-18 | CBUS2-CBUS3 | I/O | Configurable I/O bus pins |
| 19 | RESET# | Input | Active low reset |
| 20 | TEST | Input | Test pin (tie to GND for normal operation) |
| Manufacturer | Part Number | Package | Notes |
|---|---|---|---|
| FTDI | FT231XQ-R | QFN-20 | Same chip, QFN package |
| FTDI | FT230XS-R | SSOP-16 | Basic UART version (no handshake) |
| FTDI | FT232RL | SSOP-28 | Classic FT232R, larger package |
| Silicon Labs | CP2102 | QFN-28 | Alternative USB-UART bridge |
| WCH | CH340G | SOP-16 | Low-cost Chinese alternative |
Brand:
Package:
In stock:
Cargo cycle: 3~7 Days
The minimum order is 1
Brand:
Package:
In stock:
Cargo cycle: 3~7 Days
The minimum order is 1
Brand:
Package:
In stock:
Cargo cycle: 3~7 Days
The minimum order is 1
Brand:
Package:
In stock:
Cargo cycle: 3~7 Days
The minimum order is 1
Brand:
Package:
In stock:
Cargo cycle: 3~7 Days
The minimum order is 1
Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.
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Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.
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Email: info@ic-vendor.com
Tel / WhatsApp: +86 13760382860
Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.
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