[FTDI Chip]

The FT232B is a USB to serial UART interface with the following advanced features:
• Single Chip USB to Asynchronous Serial Data Transfer
• Full Handshaking & Modem Interface Signals
• UART I/F Supports 7 / 8 Bit Data, 1 / 2 Stop Bits and Odd/Even/Mark/Space/No Parity
• Data rate 300 => 3M Baud (TTL)
• Data rate 300 => 1M Baud (RS232)
• Data rate 300 => 3M Baud (RS422/RS485)
• 384 Byte Receive Buffer / 128 Byte Transmit Buffer for high data throughput
• Adjustable RX buffer timeout
• Fully Assisted Hardware or X-On / X-Off Handshaking In-built support for event characters and line break condition
• Auto Transmit Buffer control for RS485
• Support for USB Suspend / Resume through SLEEP# and RI# pins
• 4.35V to 5.25V single supply operation
• Support for high power USB Bus powered devices through PWREN# pin
• Integrated level converter on UART and control signals for interfacing to 5V and 3.3V logic
• Integrated 3.3V regulator for USB IO
• Integrated Power-On-Reset circuit
• Integrated 6MHz – 48Mhz clock multiplier PLL
• UHCI / OHCI / EHCI host controller compatible
• USB 1.1 and USB 2.0 compatible
• USB VID, PID, Serial Number and Product
• Description strings in external EEPROM
• EEPROM programmable on-board via USB
• Available as a compact lead free RoHS compliant 32-LD LQFP package (FT232BL) or 32-LD QFN package (FT232BQ).

Typical 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 USB data transfer
• USB Industrial Control
• USB MP3 Player Interface
• Set Top Box PC - USB interface
• USB Hardware Modems
• USB Wireless Modems
• USB Bar Code Readers
• USB Smart Card Readers
• USB Instrumentation