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FT231X USB to UART chip

Posted on Friday, December 21st, 2012 in components, USB by the machinegeek

Ft231x
Guan Yang draws our attention to a new member of the FT232 family, the FT231X.

I wanted access to more pins than your typical FTDI board provides, and realized that our friends at FTDI have designed a replacement for the venerable FT232 series that found a home in classical Arduinos, Bus Pirates and countless USB-to-serial boards. The FT231X is much cheaper and has cool new features like USB battery charger detection. There’s also a cheaper FT230X version that only has RX/TX, no flow control or GPIO pins.

I designed a breakout board for the chip in KiCad and put the board, schematic and Gerber files up on the Hack Manhattan wiki. This board breaks out every flow control and GPIO pin. A future update will make it easier to switch to 5V for VCC and I might also adopt the DP6037 form factor.

Via the contact form.

This entry was posted on Friday, December 21st, 2012 at 4:15 pm and is filed under components, USB. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

4 Responses to “FT231X USB to UART chip”

  1. Guan Yang says:

    I should remember to check the datasheet before I type. The cheaper FT230X has RTS, CTS and the 4 CBUS GPIO pins, but not more exotic stuff like DTR and DSR (I don’t even know what that is).

  2. Sobh says:

    Data Terminal Ready, Data Set Ready

  3. Michael says:

    An few important points in application:
    1) The RTS pin of the FT230x will reset a microcomputer (via series cap) much the same way that DTR is used on the Arduino.
    2) To use the battery charge output signals for BCD and Enum requires programming the device. FTDI makes an app for that….

  4. Sleepwalker3 says:

    Thanks for the tips Michael. How many GPIO are there on the 231?

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