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  FT232BM - USB UART ICs

This product has now been discontinued, please see FT232BL for a drop-in replacement.

The FT232BM is the 2nd generation of FTDI's popular USB UART device
and the FT232BL is a lead free version of it The FT232BQ provides the same functionality as the FT232BM and FT232BL in a QFN-32 lead free package.

 

This device not only adds extra functionality to its predecessor (FT8U232AM) 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 this device in new application areas.

 

 

  Product Information

 

  Key Hardware Features
  • Single chip USB <=> asynchronous serial data transfer
  • Full handshaking & modem interface signals
  • UART interface supports 7/8 data bits, 1/2 stop bits and Odd/Even/Mark/Space/No Parity
  • Data transfer rate of 300 Baud => 3M Baud (TTL)
  • Data transfer rate of 300 Baud => 1M Baud (RS232)
  • Data transfer rate of 300 Baud => 3M Baud (RS422/RS485)
  • 384 Byte Rx buffer/128 Byte Tx buffer for high data throughput
  • Adjustable Rx buffer timeout
  • Fully assisted hardware or X-On/X-Off handshaking
  • Built-in 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 or QFN-32 package
  • Available as a Lead-free device (FT232BL and FT232BQ) compliant to EU directive 2002/95/EG RoHS

 

 

  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

 

 



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