FT232BQ [FTDI]

FT232B – USB UART ICs

For Legacy Designs only!~ For new designs please consider the R Family of X Family range. Fresh Date codes are NOT guaranteed.

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

FT232R version recommended for new designs

The FT232B is the 2nd generation of FTDI’s popular USB UART device and the FT232BL is a lead free version of the FT232BM. The FT232BQ provides the same functionality as the 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.

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