DS232BL Version 1.8 © Future Technology Devices Intl. Ltd. 2005 Page 1 of 25
FT232BL USB UART ( USB - Serial) I.C.
The FT232BL is the lead free version of the 2
nd
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.
• 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 Lead free RoHS compliant 32-LD LQFP
package.
VIRTUAL COM PORT (VCP) DRIVERS for
- Windows 98 and Windows 98 SE
- Windows 2000 / ME / Server 2003 / XP
- Windows XP 64 Bit
- Windows XP Embedded
- Windows CE 4.2
- MAC OS-8 and OS-9
- MAC OS-X
- Linux 2.40 and greater
D2XX (USB Direct Drivers + DLL S/W Interface)
- Windows 98 and Windows 98 SE
- Windows 2000 / ME / Server 2003 / XP
- Windows XP 64 Bit
- Windows XP Embedded
- Windows CE 4.2
- Linux 2.40 and greater
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
1.0 Features
HARDWARE FEATURES
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