StarTech.com ICUSB2324852 USB to Serial Adapter - 2 Port - RS232 RS422 RS485 - COM Port Retention - FTDI USB to Serial Adapter - USB Serial. Color: Black Changer Type: USB to DB9 (RS-232) Specifications: Color: Gray Humidity: 5% to 95% RH Interface/Bridge: USB.
Ftdi Usb Serial Cable Pinout
- For most of these operating systems two types of driver are available: Virtual COM Port (VCP) drivers and direct (D2XX) drivers. The VCP driver emulates a standard PC serial port such that the USB device may be communicated with as a standard RS232 device. The D2XX driver allows direct access to a USB.
- It develops, manufactures, and supports devices and their related software drivers for converting RS-232 or TTL serial transmissions to USB signals, in order to allow support for legacy devices with modern computers. FTDI provides application-specific integrated circuit (ASIC) design services. They also provide consultancy services for product.
[Click the image to enlarge it]
FTDI cables are the family of USB to TTL serial UART converter cables and they are incorporated with FT232R IC. The chip handles all the protocol of converting USB data to UART serial data. The cables provide a fast, simple way to connect devices with a TTL level serial interface to USB and they do not require any additional software installation and setting before using them. So they are simple plug and play devices.
If stated in a single sentence, we can use FTDI cable to connect RS232 devices to PC.
Pin Configuration
As shown in FTDI cable pin diagram, one end of FTDI cable is connected to USB and other end we have six output pins. These six pins are RS232 output. The function of each pin is stated in below table.
Pin | Color | Function |
1 | Black | GND - Ground |
2 | Brown | CTS - Clear to Send |
3 | Red | VCC- Positive Voltage Output (+5V) |
4 | Orange | TXD- Transmit Asynchronous Data output |
5 | Yellow | RXD- Receive Asynchronous Data input |
6 | Green | RTS- Request to Send |
Features and Electrical Characteristics
- Data transfer rates from 300 baud to 3Mbaud at TTL levels.
- Supports RS485 and RS232.
- Single chip USB to UART conversion.
- No additional firmware programming required.
- Receive and Transmit LED drive signals.
- USB2.0 full speed compatible.
- Low USB bandwidth consumption.
- Internal EEPROM with user writable area.
- Output can be directly connected to microcontroller UART or I/O.
- Entire USB protocol handled by the electronics in the cable.
- Integrated power-on-reset circuit.
- UART signal inversion option.
- True 5V/3.3V/2.8V/1.8V CMOS drive output and TTL input.
- Operating temperature range: -40ºC to +85ºC.
- 128 byte receive buffer and 256 byte transmit buffer, utilizing buffer smoothing technology to allow for high data throughput.
- Cable length up to 6 feet.
- FCC and CE compliant.
Brief About FTDI cable
FTDI cables are the best option available for interfacing UART devices to the PC. The cable is cheap and easily available in the market. Since no additional firmware installation required for working, the interface can be established at any place and time. Also because of its rigid construction the cable can be used in hard environment. The cable also supports high baud rate for high speed data transfer.
How to use the FTDI cable
For understanding the use of FTDI cable let us consider a simple application circuit as shown below.
In the circuit we have a microcontroller having its UART connected to FTDI cable output. Here TXD of FTDI is connected to RXD of µC and RXD of FTDI is connected to TXD of µC to establish the interface. Now we can directly connect the other end of FTDI to any PC to communicate with the microcontroller. The FTDI cable establishes the handshake between PC and microcontroller so that the microcontroller can be programmed by PC.
Applications
- Upgrading legacy peripherals to USB.
- USB industrial control.
- Interfacing MCU/PLD/FPGA based designs to USB.
- USB wireless modems.
- USB bar code readers.
- USB software and hardware encryption dongles.
- USB flash card reader and writer.
- USB to RS232/RS422/RS485 converters.
2-D Model
Purchase Options
Two versions of the FTDI USB-Serial Converter are available for purchase this FTDI product page
FTDI CHIPI-X10 USB-Serial Converter
The basic version of the FTDI USB to serial converter (pictured below) fully supports Calman control of serial hardware devices through a computer USB port.
FTDI US232R-10 Premium USB-Serial Converter
The premium version of the FTDI USB to serial converter (pictured below) includes blue, side-lit LED TX and RX traffic indicators for functionality testing.
Star Tech Version
Ftdi Usb To Serial Driver
A version of the FTDI USB-Serial Converter is also available from Star Tech, through Amazon
Device Driver
When the driver is properly installed, the FTDI converter will be listed in Device Manager under Universal Serial Bus Controllers as “USB Serial Converter.'
The Virtual COM port (VCP) driver also causes the USB device to appear as an additional COM port, listed under Ports (COM & LPT), as “USB Serial Port (COMx).”
If the converter does not appear under those two listings, the driver is not yet properly installed.
Ftdi Usb Serial Port Driver
Calman software can then access the USB device connected to the FTDI converter as it would a standard serial device, at the COMx port.
Comments are closed.