FTDI Chip FT232RN USB UART ICs

FTDI Chip FT232RN USB UART ICs offer a USB to serial UART and bit-bang/GPIO modes with optional clock generator output. The FT232RN provides asynchronous and synchronous bit-bang interface modes. USB to serial designs incorporating the FT232RN has been further simplified by fully integrating the external EEPROM, clock circuit, and USB resistors.

The FTDI Chip FT232RN USB UART ICs is a “3-in-1” chip for some application areas, adding two new functions compared with its predecessors. The internally generated clock (6MHz, 12MHz, 24MHz, and 48MHz) can be separated from the FT232RN and used to drive a microcontroller or external logic.

The FT232RN is housed in Pb-free (RoHS compliant) compact 28-pin SSOP (FT232RNL) and 32-pin QFN (FT232RNQ) packages.

Features

Single chip USB to asynchronous serial data transfer interface
Entire USB protocol is handled on the chip, no USB-specific firmware programming is 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 300baud to 3 Mbaud (RS422, RS485, RS232) at TTL levels
128bytes receive buffer, and 256bytes transmit buffer utilizing 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
Synchronous and asynchronous bit bang interface options with RD# and WR# strobes

FIFO receives and transmits buffers for high data throughput
Device supplied pre-programmed with a unique USB serial number
Supports bus-powered, self-powered and high power bus powered USB configurations
Integrated +3.3V level converter for USB I/O
Integrated level converter on UART and CBUS for interfacing 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 to +5.25V 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)

Applications

USB to RS232/RS422/RS485 converters
Upgrading legacy peripherals to USB
Cellular and cordless phone USB data transfer cables and interfaces
Interfacing MCU/PLD/FPGA-based designs to USB
USB Audio and low bandwidth video data transfer
PDA to the USB data transfer
USB Smart card readers
USB Instrumentation

USB Industrial control
USB MP3 Player interface
USB FLASH card reader and writers
Set-top box PC – USB interface
USB Digital camera interface
USB Hardware modems
USB Wireless modems
USB Bar code readers
USB Software and hardware encryption dongles

FTDI Chip FT232RN USB UART ICs

Features

Applications

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