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PDF ( 数据手册 , 数据表 ) MR002-003.1

零件编号 MR002-003.1
描述 USB to Serial Adapter
制造商 MICROBOT
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MR002-003.1 数据手册, 描述, 功能
Name: USB to Serial Adapter
with FT232RL
Code: MR002-003.1
USB to Serial Adapter with FT232RL is an usefull tool that allows to connect Personal
Computers with any microcontroller system via the USB port.
It is based on the famous integrated circuit FT232RL producted by FTDI. It has a 128 byte
receiving buffer and a 256 byte transmitting buffer; this grants robust transmissions up to 3Mbaud/s.
Besides TX and RX signals, there are also available CTS, RTS and all others lines used for
handshaking procedures (see Tab. 2).
When you plug the board into the USB port, the PC system will recognize it as a serial
VirtualCOM Port (VCP) which will realize the communication with the microcontroller system
connected to the USB to Serial Adapter with FT232RL; this allows to use systems designed to work
with the RS232 serial port without modifying them.
This tiny and lightweight board is only 27x20 mm, including the mini-B connector, and its
weight is only 0,09 oz (2,6 gr). Interfacing is realized by two 0,100” strip connectors that are distant
0,700” (17,78mm); this allows a stable and easy mounting on solderless breadboard and sockets.
A very usefull feature of this board is the possibility to
select the data I/O voltage level; in this way you can interface
with microcontrollers that run at 5V, 3.3V or any other
voltage level less then 5V.
Fig. 1 - Jumper
The selection of data I/O voltage level is done by the
jumper provided with the board; inserting the jumper
between pins A and B, signals will output at 5V (see Fig. 1),
whereas, inserting the jumper between pins B and C, signals
MICROBOT di Prosseda Mirko – Strada Chiesuola 117, 04010 Borgo Carso (LT), Italy
web: http://www.microbot.it email: [email protected] tel: +39-347-2159275
1
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