آی سی رابط USB-UART FT232RL
آی سی رابط USB-UART FT232RL یک رابط USB به UART است که تمامی ملزومات برای تامین این ارتباط را در خود مجتمع کرده و با کمترین میزان قطعات جانبی این ارتباط را فراهم می‌کند. ولتاژ کاری این قطعه 3.3 تا 5.25 ولت بوده و جریان مصرفی و پهنای باند اشغالی آن بسیار پایین است.
کاربردها
- مبدل USB به RS232/RS422/RS485
- افزودن درگاه USB به بردهای میکروکنترلری
ویژگی‌های محصول
با توجه به اهمیت مطالب فنی از ترجمه صرف نظر شده است.
- Single chip USB to asynchronous serial data transfer interface.
- Entire USB protocol handled on the chip. No USB specific firmware programming required.
- Fully integrated 1024 bit EEPROM storing device descriptors and CBUS I/O configuration.
- Fully integrated USB termination resistors.
- Fully integrated clock generation with no external crystal required plus optional clock output selection enabling a glue-less interface to external MCU or FPGA.
- Data transfer rates from 300 baud to 3 Mbaud (RS422, RS485, RS232) at TTL levels.
- 128 byte receive buffer and 256 byte transmit buffer utilising buffer smoothing technology to allow for high data throughput.
- FTDI’s royalty-free Virtual Com Port (VCP) and Direct (D2XX) drivers eliminate the requirement for USB driver development in most cases.
- Unique USB FTDIChip-ID™ feature.
- Configurable CBUS I/O pins.
- Transmit and receive LED drive signals.
- UART interface support for 7 or 8 data bits, 1 or 2 stop bits and odd / even / mark / space / no parity FIFO receives and transmits buffers for high data throughput.
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- Synchronous and asynchronous bit bang interface options with RD# and WR# strobes.
- Device supplied pre-programmed with unique USB serial number.
- Supports bus powered, self-powered and highpower bus powered USB configurations.
- Integrated +3.3V level converter for USB I/O.
- Integrated level converter on UART and CBUS for interfacing to between +1.8V and +5V logic.
- True 5V/3.3V/2.8V/1.8V CMOS drive output and TTL input.
- Configurable I/O pin output drive strength.
- Integrated power-on-reset circuit.
- Fully integrated AVCC supply filtering – no external filtering required.
- UART signal inversion option.
- +3.3V (using external oscillator) to +5.25V (internal oscillator) Single Supply Operation.
- Low operating and USB suspend current.
- Low USB bandwidth consumption.
- UHCI/OHCI/EHCI host controller compatible.
- USB 2.0 Full Speed compatible.
- -40°C to 85°C extended operating temperature range.
- Available in compact Pb-free 28 Pin SSOP and QFN-32 packages (both RoHS compliant).
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mojtaba –
آی سی رابط USB-UART FT232RL
ولتاژ کاری این قطعه ۳.۳ تا ۵.۲۵ ولت بوده و جریان مصرفی و پهنای باند اشغالی آن بسیار پایین است.