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microUSB Programming Adaptor
µUSB-PA5
USB to UART Serial Bridge
Document Date: 19
th
November 2012
Document Revision: 1.0
DATASHEET
4D SYSTEMS
TURNING TECHNOLOGY INTO ART
microUSB - μUSB-PA5
Contents
1. Description ............................................................................................................................. 3
2. Module Compatibility ............................................................................................................. 3
3. Features ................................................................................................................................. 3
4. Pin Configuration and Summary .............................................................................................. 4
5. Typical Applications ................................................................................................................ 5
6. Mechanical Dimensions .......................................................................................................... 6
7. Ordering Information .............................................................................................................. 7
8. Legal Notice ............................................................................................................................ 7
9. Contact Information ............................................................................................................... 7
4D SYSTEMS μUSB-PA5
© 2012 4D SYSTEMS Page 3 of 7 www.4dsystems.com.au
microUSB - μUSB-PA5
1. Description
The microUSB Programming Adaptor (μUSB-PA5)
is a USB to RS-232 bridge converter which is
simple, cost effective, very small and easy to use.
It uses a mini-B type USB connector to connect to
your PC and is based on the FTDI FT232RQ USB to
Serial Bridge IC from FTDI Chip.
It provides the user with multi baud rate serial
data up to 3M baud rate, and access to additional
signals such as flow control in a convenient 10 pin
2.54mm (0.1”) pitch Dual-In-Line package.
The main 5 pin interface is a standard 2.54mm
(0.1”) pitch female header, designed to connect
directly to a majority of the 4D Systems modules.
The μUSB-PA5 is ideal for prototype or production.
RX and TX signals are both 3.3V and 5V tolerant.
2. Module Compatibility
The μUSB-PA5 was designed in 2012 to be the
programming adaptor of choice going forward for
new products. While a large range of 4D Systems
modules are compatible with this programming
adaptor, some are not, for mechanical reasons.
The following is a small list is of known modules
that are not compatible with the μUSB-PA5.
• uLCD-28PT
• uLCD-32PT
Please use the 4D Programming cable instead.
3. Features
• USB 2.0 compliant Full Speed 12Mbps
maximum speed, Suspend supported.
• Hardware or Xon/Xoff handshaking supported,
300bps to 3Mbps.
• UART supports 7 or 8 data bits, 1-2 Stop bits,
odd/even/mark/space and no parity
• Power on reset circuit
• Virtual COM port drivers allow operation with
existing COM port PC applications
• Supports Windows 98 and above, MAC (OSX-8
and above) and Linux (2.4 kernel and above)
• USB powered
• -40 to +85 degrees Celsius temp range
• Small size, 33.7mm x 17.3mm
• Traffic/Operation LED indicates board status
• Additional flow control and features available
for the user to solder, using standard 2.54mm
(0.1”) pitch through holes along each side of the
PCB.
• RoHS Compliant
4D SYSTEMS μUSB-PA5
© 2012 4D SYSTEMS Page 4 of 7 www.4dsystems.com.au
microUSB - μUSB-PA5
4. Pin Configuration and Summary
microUSB (μUSB-PA5) additional Pin Outs
Symbol
Description
RTS
Ready to Send Output (active low)
DTR Data Terminal Ready Output (active low)
RESET
This pin provides a LOW level RESET pulse of several hundred micro seconds when
the DTR signal is toggled.
TX Serial Data Transmit output. This connects to the host Rx (Serial Receive) input.
RX Serial Data Receive input. This connects to the host Tx (Serial Transmit) output.
CTS Clear to Send Input (active low)
SUSP USB Suspend State (active low)
TXDEN Transmit Data Enable, for enabling external circuits such as RS485 (active high)
GND Ground
+5V +5V Power from USB (up to 500mA). Power supply to external circuits
4D SYSTEMS μUSB-PA5
© 2012 4D SYSTEMS Page 5 of 7 www.4dsystems.com.au
microUSB - μUSB-PA5
5. Typical Applications
The microUSB (μUSB-PA5) is designed to accommodate many applications. Its small size and convenient form
factor are perfect for adding micro USB functionality to embedded applications.
The microUSB makes an easy USB-Serial interface, so you can easily create USB to RS-232 converters, USB to
RS-422/RS-485 converters, upgrade legacy RS232 devices, make PDA and cellphone USB interface cables,
barcode readers, POS terminals, etc.
In any application, make sure the TX and RX lines from the μUSB are crossed over to the attached peripheral.
That is, the TX from the μUSB connects to the RX of the target and the RX from the μUSB connects to the TX of
the target device.
Note: the TX and RX signal levels are between 0 Volts and 3.3 Volts, however are 5.0V tolerant.
The microUSB is designed to have a compact footprint, and be compatible with prototyping such as plugging it
directly into a breadboard when male 2.54mm (0.1”) headers are soldered to the row of 5 pins, along each
side.
For assistance with latest driver downloads, go to www.ftdichip.com/Drivers/VCP.htm or visit the μUSB-PA5
product page of the 4D Systems website, www.4dsystems.com.au
4D SYSTEMS μUSB-PA5
© 2012 4D SYSTEMS Page 6 of 7 www.4dsystems.com.au
microUSB - μUSB-PA5
6. Mechanical Dimensions
4D SYSTEMS μUSB-PA5
© 2012 4D SYSTEMS Page 7 of 7 www.4dsystems.com.au
microUSB - μUSB-PA5
7. Ordering Information
ORDERING INFORMATION
Order Code: μUSB-PA5
Package: 90mm x 130mm
Packaging: Bubble wrapped in antistatic bag
8. Legal Notice
Proprietary Information
The information contained in this document is the property of 4D Systems Pty. Ltd. and may be the subject of
patents pending or granted, and must not be copied or disclosed without prior written permission.
4D Systems endeavours to ensure that the information in this document is correct and fairly stated but does
not accept liability for any error or omission. The development of 4D Systems products and services is
continuous and published information may not be up to date. It is important to check the current position with
4D Systems. 4D Systems reserves the right to modify, update or makes changes to Specifications or written
material without prior notice at any time.
All trademarks belong to their respective owners and are recognised and acknowledged.
Disclaimer of Warranties & Limitation of Liability
4D Systems makes no warranty, either expressed or implied with respect to any product, and specifically
disclaims all other warranties, including, without limitation, warranties for merchantability, non-infringement
and fitness for any particular purpose.
Information contained in this publication regarding device applications and the like is provided only for your
convenience and may be superseded by updates. It is your responsibility to ensure that your application meets
with your specifications.
In no event shall 4D Systems be liable to the buyer or to any third party for any indirect, incidental, special,
consequential, punitive or exemplary damages (including without limitation lost profits, lost savings, or loss of
business opportunity) arising out of or relating to any product or service provided or to be provided by 4D
Systems, or the use or inability to use the same, even if 4D Systems has been advised of the possibility of such
damages.
4D Systems products are not fault tolerant nor designed, manufactured or intended for use or resale as on line
control equipment in hazardous environments requiring fail – safe performance, such as in the operation of
nuclear facilities, aircraft navigation or communication systems, air traffic control, direct life support machines
or weapons systems in which the failure of the product could lead directly to death, personal injury or severe
physical or environmental damage (‘High Risk Activities’). 4D Systems and its suppliers specifically disclaim
any expressed or implied warranty of fitness for High Risk Activities.
Use of 4D Systems’ products and devices in 'High Risk Activities' and in any other application is entirely at the
buyer’s risk, and the buyer agrees to defend, indemnify and hold harmless 4D Systems from any and all
damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise,
under any 4D Systems intellectual property rights.
9. Contact Information
For Technical Support: support@4dsystems.com.au
For Sales Support: sales@4dsystems.com.au
Website: www.4dsystems.com.au
Copyright 4D Systems Pty. Ltd. 2000-2012.
