USB-RS232-PCBA FTDI, USB-RS232-PCBA Datasheet - Page 14
Manufacturer Part Number
Interface Modules & Development Tools USB to RS232 Embeded Converter PCB Assy
Specifications of USB-RS232-PCBA
Data Bus Width
Operating Supply Voltage
For Use With/related Products
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Appendix A - PCB EEPROM Configuration
Each USB-RS232-PCB is controlled by the FTDI FT232R IC. This FT232R device contains an EEPROM which
contains the USB configuration descriptors for that device. When the PCB is plugged into a PC or a USB
reset is performed, the PC will read these descriptors. The default values stored into the internal EEPROM
are defined in Table 0.1 Default Internal EEPROM Configuration
USB Vendor ID (VID)
USB Product UD (PID)
Serial Number Enabled?
Pull down I/O Pins in USB
Max Bus Power Current
Remote Wake Up
High Current I/Os
Load VCP Driver
Table 0.1 Default Internal EEPROM Configuration
The internal EEPROM on the PCB can be re-programmed over USB using the utility program MPROG.
MPROG can be downloaded from the www.ftdichip.com. Version 2.8a or later is required for the FT232R
chip. Users who do not have their own USB Vendor ID but who would like to use a unique Product ID in
their design can apply to FTDI for a free block of unique PIDs. Contact FTDI support for this service.
Copyright © 2011 Future Technology Devices International Limited
USB TO RS232 UART SERIAL CONVERTER
FTDI default VID (hex)
FTDI default PID (hex)
A unique serial number is generated and programmed into
the EEPROM during device final test.
Enabling this option will make the device pull down on the
UART interface lines when the power is shut off (PWREN#
Returns USB 2.0 device description to the host.
Note: The device is be a USB 2.0 Full Speed device
(12Mb/s) as opposed to a USB 2.0 High Speed device
Enables the high drive level on the UART and CBUS I/O
Makes the device load the VCP driver interface for the
Signal on this pin becomes TXD# if enable.
Signal on this pin becomes RXD# if enable.
Signal on this pin becomes RTS if enable.
Signal on this pin becomes CTS if enable.
Document Reference No.: FT_000079
Clearance No.: FTDI# 52
Datasheet Version 1.41