The FT232BM is the 2nd generation of FTDI's popular USB UART device and the FT232BL is a lead free version of it.
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.
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 rate speed range: 300 bps to 230,400 bps
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
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
Data rate speed range: 300 bps to 230,400 bps
Upgrading RS232 legacy peripherals to USB
Cellular and cordless phone USB data transfer cables and
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