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Future Technology Devices International Ltd.
保健酒配方UB232R
USB Mini-B FT232R Evaluation Module
冯代存Datasheet
Document Reference No.: FT_000055
信道估计Version 1.12
Issue Date: 2010-12-07
1 Introduction
The UB232R is the smallest USB – serial development module in the FTDI product range. To minimise the size of the module, the UB232R uses a standard USB mini-B connector. It is ideal for new
development purposes as well as a platform for adding a USB interface to existing product designs.
The UB232R is based on the FTDI FT232RQ USB to Serial UART IC which handles all the USB signalling and protocols. The FT232R datasheet, DS_FT232R , is available at www.ftdichip , The UB232R supports RTS/CTS hardware handshaking and is USB powered. The module supports data
transfer rates from 300 baud to 3 Mbaud (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 is supplied with two 1x4 turned pin board headers with a standard 0.1” pitch. This aids rapid prototyping and development. All components used, including the FT232R are Pb-free (RoHS compliant).
The UB232R requires USB drivers, available free from www.ftdichip , which are used to make the FT232R on the UB232R appear as a virtual COM port (VCP). This then allows the user to communicate with the USB interface via a standard PC serial emulation port (TTY). 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. This is illustrated in the Figure 1.1
Software application access to USB via D2XX
Serial UART signals
Serial UART signals
Figure 1.1 Using the UB232R
Drivers for the UB232R are available free from www.ftdichip .
1.1USB Compliant
The UB232R is fully compliant with USB 2.0 specification
Table of Contents
1Introduction (1)
1.1USB Compliant (2)
2Typical Applications (4)
2.1Driver Support (4)
2.2Features (4)
3Electrical Details (5)
4Mechanical details (6)
5Schematic Diagram (7)
6Contact Information (8)
Appendix A – FT232R EEPROM Configuration (10)
Appendix B – Revision History (11)
Document Reference No.: FT_000055
UB232R USB Mini-B FT232R Evaluation Module Datasheet Version 1.12
Clearance No.: FTDI# 43 2Typical Applications
Rapid USB integration into existing electronic systems.
Prototyping platform for USB interface on new systems.
USB Instrumentation integration.
PCB real estate sensitive designs integrating smallest FTDI USB module available.
2.1Driver Support
mrowRoyalty-Free VIRTUAL COM PORT (VCP) DRIVERS for:
Windows 7 32, 64-bit
Windows Vista
Windows XP 64-bit
Windows XP Embedded
Windows 98, 98SE, ME, 2000, Server 2003,
XP and Server 2008
Windows CE.NET 4.2 , 5.0 and 6.0
MAC OS 8 / 9, OS-X台卡制作
Linux 2.4 and greater
. Royalty-Free D2XX Direct Drivers (USB Drivers + DLL S/W Interface):
Windows 7 32, 64-bit
Windows Vista
Windows XP 64-bit
Windows XP Embedded.
Windows 98, 98SE, ME, 2000, Server 2003,
XP and Server 2008
Windows CE.NET 4.2, 5.0 and 6.0
Linux 2.4 and greater
The drivers listed above are all available to download for free from www.ftdichip. Various 3rd Party Drivers are also available for various other operating systems – see www.ftdichip for details.
2.2Features
The UB232R has the following feature:
Reduced development time.
Rapid integration into existing systems.
USB powered – no external power supply needed.
Based on FT232RQ device.
Entire USB protocol handled by USB module. Small USB Type B connector to minimise PCB real estate usage.
Data transfer rates from 300 baud to 3 Mbaud at TTL levels Lower Operating (15mA) and USB suspend mode current (70µA).
Supports FT232R FTDIChip-ID™ with a unique USB serial number.
Support for USB suspend and resume.
UHCI / OHCI / EHCI host controller compatible. USB 2.0 Full Speed compatible.
-40°C to +85°C operating temperature range.
Document Reference No.: FT_000055
UB232R USB Mini-B FT232R Evaluation Module Datasheet Version 1.12
Clearance No.: FTDI# 43
3 Electrical Details
The electrical details and connections to the UB232R module are shown in Figure 3.1, Table 3.1 and Table
Figure 3.1 UB232R Electrical Connections (Top View)
The signal output level on connectors J1 and J2 are controlled by the voltage supplied to the VCCIO
pin 4 on the FT232R. The VCCIO is selected between the +5V (VCC from USB) or the output of the FT232R Low Drop Out (LDO) +3.3V regulator. The VCCIO selection is done by fitting a link on connector J3. The selection is shown in Table 3.2.
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