The UB232R is the smallest USB to serial development module based on FT232RQ USB to serial UART IC which handles all the USB signalling and protocols. To minimise the size of the module, the UB232R uses a standard USB mini B connector. This module supports RTS/CTS hardware handshaking and is USB powered. The UB232R supports data transfer rates from 300baud to 3Mbaud (RS422, RS485, RS232 and at TTL levels). In addition, two of the configurable CBUS pins of the FT232R are made available on the UB232R connector, allowing the UB232R to provide clock signals to external logic or they can be used to drive signal traffic indicator LEDs. The UB232R requires USB drivers which are used to make the FT232R on the UB232R appear as a virtual COM port. This then allows the user to communicate with the USB interface via a standard PC serial emulation port. Another FTDI USB driver, the D2XX driver, can also be used with application software to directly access the FT232R on the UB232R though a DLL.

• The UB232R is fully compliant with USB 2.0 specification
• Reduced development time
• Rapid integration into existing systems
• Entire USB protocol handled by USB module
• Lower operating (15mA) and USB suspend mode current (70µA)
• Support for USB suspend and resume
• UHCI/OHCI /EHCI host controller compatible
• Supports FT232R FTDIChip-ID with a unique USB serial number
• USB powered, no external power supply needed

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