The FT232BM is the 2nd generation of FTDI’s popular USB UART I.C. This device not only adds extra functionality to its FT8U232AM predecessor and reduces external component count, but also maintains a high degree of pin compatibility with the original, making it easy to upgrade or cost reduce existing designs as well as increasing the potential for using the device in new application areas.

FEATUREs
HARDWARE FEATURES
• Single Chip USB <->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
• 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
• USB Bulk or Isochronous data transfer modes
• 4.35V to 5.25V single supply operation
• 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
• Compact 32-LD LQFP package

APPLICATION AREAS
- USB <-> RS232 Converters
- USB <-> RS422 / RS485 Converters
- Upgrading RS232 Legacy Peripherals to USB
- Cellular and Cordless Phone USB data transfer cables and interfaces
- Interfacing MCU based designs to USB
- USB Audio and Low Bandwidth Video data transfer
- PDA <-> USB data transfer
- USB Smart Card Readers
- Set Top Box (S.T.B.) PC - USB interface
- USB Hardware Modems
- USB Wireless Modems
- USB Instrumentation
- USB Bar Code Readers