5. TTL-232R Circuit Schematic
Page 6
Figure 4 shows the TTL-232R circuit schematic. Note that there is an option internal to the cable design which allows
for the TTL I/O pins supply voltage to be changed to 3.3V instead of 5V, thus making the TTL-232R suitable for
interfacing with 3.3V logic (part number TTL-232R-3V3). Customised versions of these cables are also available.
Contact
if you are interested in any of these options.
Pull Up Resistorss
Not Fitted
Figure 4 - TTL-232R USB to TTL Serial Converter Cable Circuit Schematic
TTL-232R USB to TTL Serial Converter Cable
Datasheet Version 1.0
© Future Technology Devices International Ltd. 2006
FTDI [ FUTURE TECHNOLOGY DEVICES INTERNATIONAL LTD. ]
