FT231XS-U

Product Overview

• Category: USB to UART Bridge
• Use: The FT231XS-U is a USB to UART bridge device designed for interfacing between USB and serial UART interfaces. It allows easy communication between a computer and microcontroller or other UART-based devices.
• Characteristics:
  • Compact and lightweight design
  • High-speed USB 2.0 interface
  • Supports multiple baud rates up to 3 Mbps
  • Integrated USB termination resistors
  • Low power consumption
• Package: The FT231XS-U comes in a small surface mount package, making it suitable for space-constrained applications.
• Essence: This product serves as a bridge between USB and UART interfaces, enabling seamless data transfer between a computer and UART-based devices.
• Packaging/Quantity: The FT231XS-U is typically sold in reels containing a specified quantity of devices.

Specifications

• USB Interface: USB 2.0 Full Speed (12 Mbps)
• UART Interface: Up to 3 Mbps baud rate support
• Operating Voltage: 3.3V
• Operating Temperature Range: -40°C to +85°C
• Package Type: QFN-16

Pin Configuration

The FT231XS-U features a 16-pin QFN package with the following pin configuration:

1. VCCIO - IO supply voltage
2. GND - Ground
3. TXD - UART transmit data
4. RXD - UART receive data
5. RTS# - Request to Send control signal
6. CTS# - Clear to Send control signal
7. DTR# - Data Terminal Ready control signal
8. DSR# - Data Set Ready control signal
9. DCD# - Data Carrier Detect control signal
10. RI# - Ring Indicator control signal
11. CBUS0 - Configurable CBUS I/O pin 0
12. CBUS1 - Configurable CBUS I/O pin 1
13. CBUS2 - Configurable CBUS I/O pin 2
14. CBUS3 - Configurable CBUS I/O pin 3
15. CBUS4 - Configurable CBUS I/O pin 4
16. GND - Ground

Functional Features

• USB to UART bridge conversion
• Support for multiple baud rates
• Integrated USB termination resistors for improved signal integrity
• Low power consumption for energy-efficient operation
• Compact and lightweight design for easy integration into various applications

Advantages and Disadvantages

Advantages: - High-speed USB 2.0 interface for fast data transfer - Wide range of supported baud rates - Compact and lightweight design for space-constrained applications - Integrated USB termination resistors simplify circuit design

Disadvantages: - Limited number of configurable CBUS I/O pins - Requires external voltage supply for IO (VCCIO)

Working Principles

The FT231XS-U acts as a bridge between the USB and UART interfaces. It converts USB data packets into UART serial data and vice versa. The device is powered by the USB bus, eliminating the need for an external power supply. It supports various baud rates, allowing flexible communication with UART-based devices.

Application Field Plans

The FT231XS-U finds applications in various fields, including but not limited to: - Microcontroller programming and debugging - Industrial automation - Internet of Things (IoT) devices - Robotics - Embedded systems development

Alternative Models

• FT232RL
• CP2102N
• PL2303HXD
• CH340G
• MAX3232

These alternative models offer similar functionality and can be considered as replacements or alternatives to the FT231XS-U.

In conclusion, the FT231XS-U is a USB to UART bridge device that enables seamless communication between a computer and UART-based devices. Its compact design, high-speed interface, and support for multiple baud rates make it suitable for a wide range of applications in various industries.