Copyright © 2015 Future Technology Devices International Limited

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FT234XD USB TO BASIC UART IC

Version 1.2

Document No.: FT_000753 Clearance No.: FTDI#324

Appendix B - List of Figures and Tables

List of Figures

Figure 2.1 FT234XD Block Diagram .................................................................................................4

Figure 3.1 DFN Schematic Symbol ..................................................................................................7

Figure 6.1 Bus Powered Configuration ........................................................................................... 20

Figure 6.2 Self Powered Configuration ........................................................................................... 21

Figure 6.3 Bus Powered with Power Switching Configuration ............................................................ 22

Figure 7.1 Application Example showing USB to RS232 Converter ..................................................... 23

Figure 7.2 Application Example Showing USB to RS485 Converter .................................................... 24

Figure 7.3 USB to RS422 Converter Configuration........................................................................... 25

Figure 7.4 USB Battery Charging Detection .................................................................................... 26

Figure 7.5 Single LED Configuration .............................................................................................. 27

Figure 8.1: Simplified memory map for the FT-X ............................................................................ 30

Figure 9.1 DFN-12 Package Dimensions......................................................................................... 31

Figure 9.2 DFN-12 Package Markings ............................................................................................ 32

Figure 9.3 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 3.4 CBUS Configuration Control ........................................................................................... 10

Table 5.1 Absolute Maximum Ratings ............................................................................................ 14

Table 5.2 Operating Voltage and Current ....................................................................................... 15

Table 5.3 I/O Pin Characteristics VCCIO = +3.3V (except USB PHY pins) ........................................... 16

Table 5.4 I/O Pin Characteristics VCCIO = +2.5V (except USB PHY pins) ........................................... 17

Table 5.5 I/O Pin Characteristics VCCIO = +1.8V (except USB PHY pins) ........................................... 18

Table 5.6 USB I/O Pin (USBDP, USBDM) Characteristics .................................................................. 19

Table 5.7 MTP Memory Characteristics........................................................................................... 19

Table 5.8 Internal Clock Characteristics ......................................................................................... 19

Table 8.1 Default Internal MTP Memory Configuration ..................................................................... 29

Table 9.1 Reflow Profile Parameter Values ..................................................................................... 33