FT234XD-R Overview
The FT234XD-R is a USB to serial UART interface with optimised packaging (3mm x 3mm 12 pins DFN) for smaller PCB designs. It is fully compliant with the USB 2.0 specification and has been given the USB-IF Test-ID (TID) 40001465 (Rev D).
FT234XD-R Pinout
FT234XD-R Pinout
Pin Description
| Pin No. | Name | Type | Description |
| 4 | VCC | POWER Input | 5 V (or 3.3V) supply to IC |
| 9 | VCCIO | POWER Input | 1.8V – 3.3V supply for the IO cells |
| 3 | 3.3VOUT | POWER Output | 3.3V output at 50mA. May be used to power VCCIO. When VCC is 3.3V; pin 3 is an input pin and should be connected to pin 4. |
| 5, 13 | GND | POWER Input | 0V Ground input. |
| 1 | USBDM | INPUT/OUTPUT | USB Data Signal Minus. |
| 12 | USBDP | INPUT/OUTPUT | USB Data Signal Plus |
| 2 | RESET# | INPUT | Reset input (active low) |
| 7 | TXD | Output | Transmit Asynchronous Data Output |
| 10 | RXD | Input | Receiving Asynchronous Data Input. |
| 8 | RTS# | Output | t Request to Send Control Output / Handshake Signal |
| 11 | CTS# | Input | Clear To Send Control Input / Handshake Signal. |
| 6 | CBUSO | I/O | Configurable CBUS I/O Pin. Function of this pin is configured in the device MTP memory. |
FT234XD-R CAD Model
Symbol
FT234XD-R Symbol
Footprint
FT234XD-R Footprint
3D Model
FT234XD-R 3D Model
FT234XD-R Alternatives
The alternate parts for FT234XD-R:
- FT234XD-T
FT234XD-R Block Diagram
FT234XD-R Block Diagram
FT234XD-R Typical Applications
- USB to RS232/RS422/RS485 Converters
- Upgrading Legacy Peripherals to USB
- Utilising USB to add system modularity
- Incorporate USB interface to enable PC transfers for development system communication
- Cellular and Cordless Phone USB data transfer cables and interfaces
- Interfacing MCU/PLD/FPGA-based designs to add USB connectivity
- USB Audio and Low Bandwidth Video data transfer
- USB Smart Card Readers
- USB Instrumentation
FT234XD-R Application Circuit
Application Example showing USB to RS232 Converter
An example of using the FT234XD as a USB to RS232 converter is illustrated in Figure above. In this application, a 3V3 TTL to RS232 Level Converter IC is used on the serial UART interface of the FT234XD to convert the 3V3 levels of the FT234XD to RS232 levels. This level shift can be done using line drivers from a variety of vendors e.g. Zywyn. A useful feature on some of these devices is the SHDN# pin which can be used to power down the device to a low quiescent current during USB suspend mode. A suitable level-shifting device is the Zywyn ZT3222F which is capable of RS232 communication at up to 1000k baud.
For more detailed application circuits you can refer to the datasheet below.
FT234XD-R Package
FT234XD-R Package
Datasheet PDF
Download datasheets and manufacturer documentation for FTDI, Future Technology Devices International Ltd FT234XD-R.
- Datasheets : FT234XD
- Environmental Information : RoHS Cert IC
Specifications
FTDI, Future Technology Devices International Ltd FT234XD-R technical specifications, attributes, parameters and parts with similar specifications to FTDI, Future Technology Devices International Ltd FT234XD-R.
- TypeParameter
- Factory Lead Time11 Weeks
- MountSurface Mount
- Package / Case12-VFDFN Exposed Pad
- Number of Pins12
- Operating Temperature-40°C~85°C
- PackagingTape & Reel (TR)
- Published2006
- Part StatusActive
- Moisture Sensitivity Level (MSL)3 (168 Hours)
- Number of Terminations12
- SubcategorySerial IO/Communication Controllers
- TechnologyCMOS
- Voltage – Supply2.97V~5.5V
- Terminal PositionDUAL
- Terminal FormNO LEAD
- Peak Reflow Temperature (Cel)260
- Supply Voltage5V
- Terminal Pitch0.45mm
- Time@Peak Reflow Temperature-Max (s)40
- FunctionBridge, USB to UART
- Qualification StatusNot Qualified
- Operating Supply Voltage5V
- InterfaceUART
- Operating Supply Current8mA
- Number of Ports1
- Nominal Supply Current8mA
- uPs/uCs/Peripheral ICs TypeBUS CONTROLLER, UNIVERSAL SERIAL BUS
- Data Rate3 Mbps
- ProtocolUSB
- USBUSB 2.0
- StandardsUSB 2.0
- Bus CompatibilityI2C
- Ambient Temperature Range High85°C
- Height800μm
- Length3mm
- Width3mm
- REACH SVHCNo SVHC
- RoHS StatusRoHS Compliant
- Lead FreeLead Free
