FT231XQ-R datasheet(33/45 Pages) FTDI

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FT231X USB TO FULL HANDSHAKE UART IC

Datasheet

Version 1.2

Document No.: FT_000565 Clearance No.:

FTDI# 261

Parameter

Value

Notes

CBUS Drive Current

Strength

4mA

Options are 4mA, 8mA, 12mA, 16mA

CBUS slew rate

Slow

Options are slow or fast

CBUS Schmitt Trigger

Enable

Normal

Options are normal or Schmitt

Load VCP Driver

Enabled**

Makes the device load the VCP driver interface for

the device.

CBUS0

TXDEN

Default configuration of CBUS0 – Transmit data

enable for RS485

CBUS1

RXLED#

Default configuration of CBUS1 – Receive LED drive.

CBUS2

TXLED#

Default configuration of CBUS2 – Transmit LED

drive.

CBUS3

SLEEP#

Default configuration of CBUS3 – SLEEP#. Logic 0

when the device is in suspend.

Invert TXD

Disabled

Signal on this pin becomes TXD# if enable.

Invert RXD

Disabled

Signal on this pin becomes RXD# if enable.

Invert RTS#

Disabled

Signal on this pin becomes RTS if enable.

Invert CTS#

Disabled

Signal on this pin becomes CTS if enable.

Invert DTR#

Disabled

Signal on this pin becomes DTR if enable.

Invert DSR#

Disabled

Signal on this pin becomes DSR if enable.

Invert DCD#

Disabled

Signal on this pin becomes DCD if enable.

Invert RI#

Disabled

Signal on this pin becomes RI if enable.

Table 8.1 Default Internal MTP Memory Configuration

**VCP disabled in Rev B silicon in error.

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