FT234XD-T FTDI, FT234XD-T Datasheet
FT234XD-T
Specifications of FT234XD-T
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FT234XD-T Summary of contents
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... Future Technology Devices International Ltd FT234XD ( USB to BASIC UART IC) The FT234XD is a USB to serial UART interface with optimised packaging (3mm x 3mm 12 pin DFN) for smaller PCB designs and the following features: Single chip USB to asynchronous serial data transfer interface. ...
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... FT234XD-x Note: Packing codes for x is Taped and Reel - 5,000pcs per reel Tray packing - 490pcs per tray. Copyright © 2013 Future Technology Devices International Limited FT234XD USB TO BASIC UART IC Document No.: FT_000753 Clearance No.: FTDI#324 USB Industrial Control USB FLASH Card Reader and Writers ...
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... USB Compliant The FT234XD is fully compliant with the USB 2.0 specification and has been given the USB-IF Test-ID (TID) 40001465 (Rev D). Copyright © 2013 Future Technology Devices International Limited FT234XD USB TO BASIC UART IC Version 1.1 Document No.: FT_000753 Clearance No.: FTDI#324 3 ...
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... Multiplier Oscillator GND Figure 2.1 FT234XD Block Diagram For a description of each function please refer to Section 4. Copyright © 2013 Future Technology Devices International Limited FT234XD USB TO BASIC UART IC Document No.: FT_000753 Clearance No.: FTDI#324 1V8 Internal Core Supply FIFO RX Buffer (512 bytes) USB Engine ...
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... Internal MTP Memory Configuration ........................................... 28 8.1 Default Values .................................................................................. 28 8.2 Methods of Programming the MTP Memory ....................................... 29 8.2.1 Programming the MTP memory over USB ...................................................................... 29 8.3 Memory Map ..................................................................................... 30 9 Package Parameters ................................................................... 31 9.1 DFN-12 Package Mechanical Dimensions .......................................... 31 Copyright © 2013 Future Technology Devices International Limited FT234XD USB TO BASIC UART IC Version 1.1 Document No.: FT_000753 Clearance No.: FTDI#324 5 ...
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... DFN-12 Package Markings ................................................................ 32 9.3 Solder Reflow Profile ........................................................................ 33 10 Contact Information ................................................................... 34 Appendix A – References ........................................................................... 35 Appendix B - List of Figures and Tables ..................................................... 36 Appendix C - Revision History .................................................................... 37 Copyright © 2013 Future Technology Devices International Limited FT234XD USB TO BASIC UART IC Version 1.1 Document No.: FT_000753 Clearance No.: FTDI#324 6 ...
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... GND Table 3.1 Power and Ground *Pin 13 is the centre pad under the IC. Connect to GND VCC is 3.3V then 3.3VOUT must also be driven with 3.3V input Copyright © 2013 Future Technology Devices International Limited FT234XD USB TO BASIC UART IC Document No.: FT_000753 Clearance No.: FTDI#324 7 TXD 10 RXD ...
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... When used in Input Mode, the input pins are pulled to VCCIO via internal 75kΩ (approx) resistors. These pins can be programmed to gently pull low during USB suspend (PWREN# = “1”) by setting an option in the MTP memory. Copyright © 2013 Future Technology Devices International Limited FT234XD USB TO BASIC UART IC Document No.: FT_000753 Clearance No.: FTDI#324 Type USB Data Signal Minus. ...
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... CLK6MHz GPIO BCD Charger BCD Charger# BitBang_WR# BitBang_RD# VBUS Sense Time Stamp Copyright © 2013 Future Technology Devices International Limited FT234XD USB TO BASIC UART IC Document No.: FT_000753 Clearance No.: FTDI#324 CBUS0 IO Pad is tri-stated CBUS0 Output a constant 1 CBUS0 Output a constant 0 CBUS0 Enable transmit data for RS485 Output is low after the device has been configured by USB, then high during USB suspend mode ...
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... Keep_Awake# Table 3.4 CBUS Configuration Control *When in USB suspend mode the outputs clocks are also suspended. Copyright © 2013 Future Technology Devices International Limited FT234XD USB TO BASIC UART IC Document No.: FT_000753 Clearance No.: FTDI#324 SOF is received Prevents the device from entering suspend state CBUS0 when unplugged ...
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... The following paragraphs detail each function within the FT234XD. Please refer to the block diagram shown in Figure 2.1 Internal MTP Memory. The internal MTP memory in the FT234XD is used to store USB Vendor ID (VID), Product ID (PID), device serial number, product description string and various other USB configuration descriptors ...
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... This determines the baud rate of the UART, which is programmable from 183 baud to 3 Mbaud. The FT234XD supports all standard baud rates and non-standard baud rates from 183 Baud Mbaud. Achievable non-standard baud rates are calculated as follows - Baud Rate = 3000000 / ( where ‘ ...
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... RESET Generator - The integrated Reset Generator Cell provides a reliable power-on reset to the device internal circuitry at power up. The RESET# input pin allows an external device to reset the FT234XD. RESET# can be tied to VCC or left unconnected if not being used. Copyright © 2013 Future Technology Devices International Limited FT234XD USB TO BASIC UART IC Version 1 ...
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... Devices Characteristics and Ratings 5.1 Absolute Maximum Ratings The absolute maximum ratings for the FT234XD devices are as follows. These are in accordance with the Absolute Maximum Rating System (IEC 60134). Exceeding these may cause permanent damage to the device. Parameter Storage Temperature Floor Life (Out of Bag) At Factory Ambient (30° ...
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... Voltage VCCIO Operating VCC2 Supply Voltage Operating Supply Icc1 Current Operating Supply Icc2 Current 3V3 3.3v regulator output Table 5.2 Operating Voltage and Current Copyright © 2013 Future Technology Devices International Limited FT234XD USB TO BASIC UART IC Document No.: FT_000753 Clearance No.: FTDI#324 Minimum Typical Maximum 2.97 5 5.5 1.62 --- 3.63 6.5 8 8.3 125 2 ...
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... Tri-state output leakage Ioz current Table 5.3 I/O Pin Characteristics VCCIO = +3.3V (except USB PHY pins) * The I/O drive strength and slow slew-rate are configurable in the MTP memory. Copyright © 2013 Future Technology Devices International Limited FT234XD USB TO BASIC UART IC Document No.: FT_000753 Clearance No.: FTDI#324 Minimum Typical Maximum 2.97 ...
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... Tri-state output leakage Ioz current Table 5.4 I/O Pin Characteristics VCCIO = +2.5V (except USB PHY pins) * The I/O drive strength and slow slew-rate are configurable in the MTP memory. Copyright © 2013 Future Technology Devices International Limited FT234XD USB TO BASIC UART IC Document No.: FT_000753 Clearance No.: FTDI#324 Minimum Typical Maximum 2.25 ...
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... Tri-state output leakage Ioz current Table 5.5 I/O Pin Characteristics VCCIO = +1.8V (except USB PHY pins) * The I/O drive strength and slow slew-rate are configurable in the MTP memory. Copyright © 2013 Future Technology Devices International Limited FT234XD USB TO BASIC UART IC Document No.: FT_000753 Clearance No.: FTDI#324 Minimum Typical Maximum 1.62 ...
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... The internal Clock Oscillator has the following characteristics: Parameter Minimum Frequency of Operation (see Note 1) Clock Period Duty Cycle Table 5.8 Internal Clock Characteristics Note 1: Equivalent to +/-1667ppm Copyright © 2013 Future Technology Devices International Limited FT234XD USB TO BASIC UART IC Document No.: FT_000753 Clearance No.: FTDI#324 Minimum Typical Maximum VCC-0 2.0 Unit ...
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... The power descriptors in the internal MTP memory of the FT234XD should be programmed to match the current drawn by the device. A ferrite bead is connected in series with the USB power supply to reduce EMI noise from the FT234XD and associated circuitry being radiated down the USB cable to the USB host. The value of the Ferrite Bead depends on the total current drawn by the application ...
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... USBDP is pulled up to +3.3V, thus identifying the device as a full speed device to the USB host or hub. When the USB host or hub is powered off, VBUS_Sense pin will be low and the FT234XD is held in a suspend state. In this state the internal 1.5kΩ resistor is not pulled up to any power supply (hub or host is powered down current flows down USBDP via the 1.5kΩ ...
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... This requirement includes external logic. Some external logic has the ability to power itself down into a low current state by monitoring the PWREN# signal. For external logic that cannot power itself down in this way, the FT234XD provides a simple but effective method of turning off power during the USB suspend mode. ...
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... 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 ...
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... GND GND Figure 7.2 Application Example Showing USB to RS485 Converter An example of using the FT234XD as a USB to RS485 converter is shown in Figure 7.2. In this application, a 3V3-TTL to RS485 level converter IC is used on the serial UART interface of the FT234XD to convert the TTL levels of the FT234XD to RS485 levels. ...
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... GND Figure 7.3 USB to RS422 Converter Configuration An example of using the FT234XD as a USB to RS422 converter is shown in Figure 7.3. In this application, two TTL to RS422 Level Converter ICs are used on the serial UART interface of the FT234XD to convert the TTL levels of the FT234XD to RS422 levels. There are many suitable level converter devices available ...
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... These charging profiles do not enumerate the USB port of the peripheral. The FT234XD device will detect that a USB compliant dedicated charging port (DCP) is connected. Once detected while in suspend mode, a battery charge detection signal is provided to allow external logic to switch to charging mode as opposed to operation mode ...
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... FT234XD Figure 7.5 Single LED Configuration An example of using the FT234XD to drive an LED is shown in Figure 7.5. In this example the CBUS0 pin is used to indicate when data is being transmitted or received by the device (TX&RXLED). In this configuration the FT234XD will drive only a single LED. Copyright © 2013 Future Technology Devices International Limited FT234XD USB TO BASIC UART IC Document No ...
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... In many cases, the default values programmed into the MTP memory will be suitable and no re- programming will be necessary. The defaults can be found in Section 8.1. The MTP memory in the FT234XD can be programmed over USB if the values need to be changed for a particular application. Further details of this are provided from section 8.2 onwards. ...
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... Additionally, D2XX commands can be used to program the MTP memory from within user applications. For more information on the commands available, please see the D2XX Programmers Guide below. http://www.ftdichip.com/Support/Documents/ProgramGuides/D2XX_Programmer's_Guide(FT_000071).p df Copyright © 2013 Future Technology Devices International Limited FT234XD USB TO BASIC UART IC Document No.: FT_000753 Clearance No.: FTDI#324 Value 4mA Options are 4mA, 8mA, 12mA, 16mA ...
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... User Memory Area The User Memory Areas are highlighted in Green on the memory map. They can be read and written via USB on the FT234XD. All locations within this range are freely programmable; no areas have special functions and there is no checksum for the user area. ...
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... Package Parameters The FT234XD is available in a DFN-12 package. The solder reflow profile is described in Section 9.2. 9.1 DFN-12 Package Mechanical Dimensions Figure 9.1 DFN-12 Package Dimensions The FT234XD is supplied in a RoHS compliant leadless DFN-12 package. The package is lead (Pb) free, and uses a ‘green’ compound. The package is fully compliant with European Union directive 2002/95/EC. ...
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... The date code format is YYXX where digit week number digit year number. This is followed by the revision number. The code XXXXXXX is the manufacturing LOT code. Copyright © 2013 Future Technology Devices International Limited FT234XD USB TO BASIC UART IC Document No.: FT_000753 Clearance No.: FTDI#324 12 7 Version 1 ...
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... Figure 9.3 FT234XD Solder Reflow Profile The recommended values for the solder reflow profile are detailed in Table 9.1. Values are shown for both a completely Pb free solder process (i.e. the FT234XD is used with Pb free solder), and for a non-Pb free solder process (i.e. the FT234XD is used with non-Pb free solder). ...
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... Future Technology Devices International Ltd, Unit 1, 2 Seaward Place, Centurion Business Park, Glasgow G41 1HH, United Kingdom. Scotland Registered Company Number: SC136640 Copyright © 2013 Future Technology Devices International Limited FT234XD USB TO BASIC UART IC Document No.: FT_000753 Clearance No.: FTDI#324 Branch Office – Tigard, Oregon, USA ...
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... Copyright © 2013 Future Technology Devices International Limited FT234XD USB TO BASIC UART IC Version 1.1 Document No.: FT_000753 Clearance No.: FTDI#324 35 ...
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... Figure 7.7 Single LED Configuration .............................................................................................. 27 Figure 8.1: Simplified memory map for the FT-X ............................................................................ 30 Figure 9.3 DFN-12 Package Dimensions ......................................................................................... 31 Figure 9.4 DFN-12 Package Markings ............................................................................................ 32 Figure 9.5 FT234XD Solder Reflow Profile ...................................................................................... 33 List of Tables Table 3.1 Power and Ground .......................................................................................................... 7 Table 3.2 Common Function pins .................................................................................................... 8 Table 3.3 UART Interface and CBUS Group (see note 1) .................................................................... 8 Table 3 ...
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... First release Version 1.1 updated TID info. Added clarification that we are 5V tolerant February 2013 Copyright © 2013 Future Technology Devices International Limited FT234XD USB TO BASIC UART IC Document No.: FT_000753 Clearance No.: FTDI#324 USB to BASIC UART IC FT234XD FT_000753 FTDI#324 http://www.ftdichip.com/FT-X.htm Send Feedback Version 1.1 ...