UMFT234XD Datasheet, PDF (3/11 Pages) Future Technology Devices International Ltd. – UMFT234XD Breakout Modules

UMFT234XD Datasheet
Version 1.1
Document Reference No.: FT_000801 Clearance No.: FTDI# 327
3 UMFT234XD Signals and Configurations
CN1 connects directly to a USB host or HUB port, or can be connected to a USB extension cable. This
connects to USB signals, 5V USB Bus power and GND. When connecting the module to a USB host or HUB
the signal pads should be facing upwards when connecting to a horizontal connector and be facing right
for vertical connectors. If the module is plugged in upside down no connectivity will be made between
PCB and HUB, no damage will occur from plugging the module in the wrong way.
3.1 UMFT234XD CN1 Signal Descriptions
Pin No. Name
Type
Description
5V Power input USB port. For a low power USB bus powered design, up to 100mA can
1
VBUS PWR
be sourced from the 5V supply on the USB bus. A maximum of 500mA can be sourced
from the USB bus in a high power USB bus powered design.
2
D-
Signal Negative USB data signal
3
D+
Signal Positive USB data signal
4
GND
PWR Module Ground
Table 3.1 USB Connector Pin Out Description
3.2 UMFT234XD CN2 Signal Descriptions
Pin No. Name
Type
Description
1
TXD
Output UART transmit data
2
VBUS
PWR
Output
5V Power output USB port.
3
GND
PWR
Module Ground Supply
4
RESET# Input Can be used by an external device to reset the FT234XD.
5
RXD
Input UART receive data
3.3V output from FT234XD integrated LDO regulator. This pin is decoupled to ground
6
3V3
Output on the module PCB with a 10nF capacitor and offers 3V3 at up to 50mA for external
hardware.
7
RTS#
Output UART Ready to Send handshake signal
8
GND
PWR
Module Ground Supply
9
CTS#
Input UART Clear to Send handshake signal
Configurable CBUS0 I/O Pin. The function of this pin is configured in the device
10
CB0
internal
I/O
MTP ROM. See Table 3.3
Table 3.2 UART Module Pin Out Description
3
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