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The FT2232HL is a USB 2.0 Full Speed (12 Mbps) device with two multi-purpose asynchronous serial channels. It is a part of the FTDI chip line, designed to provide a convenient interface between USB and various serial protocols. It is ideal for applications that require easy USB connections with support for different data protocols. Functions 1. USB to Serial Converter: The FT2232HL can convert USB signals to UART, providing RS232 or RS485 interfacing capabilities. 2. USB Multi-Protocol Synchronous Serial Engine (MPSSE): It supports protocols like I2C, SPI, and JTAG, making it highly adaptable. 3. GPIO Support: It features multiple general-purpose I/O pins that can be controlled and configured for various tasks. 4. Dual Channels: The FT2232HL provides two independent USB UARTs or interfaces that can be used simultaneously. 5. Configurable data format: The chip allows for configuration of data formats, stop bits, and parity options. Applications 1. Embedded Systems Development: Used as a bridge for programming or debugging microcontrollers. 2. Terminal Emulation: Combine USB with serial communication for terminal applications. 3. Data Acquisition Systems: Interface sensors and instruments via USB. 4. Industrial Control: Use in high-speed control and data logging applications. 5. Consumer Electronics: Implement in devices that require USB communication. Alternative Parts 1. FT232RL: Another USB to UART interface with one channel. 2. FT245RL: A USB to parallel interface that supports FIFO protocols. 3. FT2232D: An earlier version with similar functionalities but lacks some features of the FT2232HL. 4. CP2102: A USB to UART Bridge Controller from Silicon Labs as another alternative. Embedded Modules FTDI provides several module variants based on the FT2232HL, such as: 1. FT2232HL Module: A breakout board with the FT2232HL chip for development purposes. 2. FTDI FT232R USB UART modules: Typically includes a small PCB that implements FTDI chips for easy integration into projects. 3. TTL-232R-XXXX: USB to TTL Serial Cables that incorporate FTDI chips for straightforward connection to microcontrollers or other devices. Q&A Q1: What protocols does the FT2232HL support? A1: The FT2232HL supports multiple protocols, including UART, I2C, SPI, and JTAG through its Multi-Protocol Synchronous Serial Engine (MPSSE). Q2: How can the FT2232HL be used for debugging? A2: The FT2232HL can function as an interface to communicate with microcontrollers over UART, making it suitable for programming and debugging embedded systems. Q3: What is the maximum data transfer rate of the FT2232HL? A3: The FT2232HL supports full-speed USB 2.0 with a maximum data transfer rate of 12 Mbps. Q4: Can the FT2232HL be used in conjunction with other USB devices? A4: Yes, as a USB device, the FT2232HL can interact with various USB host controllers and devices, facilitating integration within a broader USB ecosystem. Q5: What are some common applications of the FT2232HL in industry? A5: Common applications include automotive testing equipment, data capture systems in medical devices, and interconnected systems in industrial automation.