[click to enlarge: 65kb JPEG]
As the FT245BM is an SMD chip (32LD LQFP; 0.8mm pitch), it was necessary
to create a PCB for the design. You can see the prototype on the left:
I designed it to be small but without requiring any more SMD components
besides the main IC.
As I did not have the 27 Ohm resistors (R3 and
R4) around that weekend, I used two 47 Ohm in parallel
(yielding 23.5 Ohm). [That's why the resistors behind the EEPROM IC
look so strange.] I added C7 and C8 to the design after
building the board, hence the 10u decoupling cap C8 was soldered directly
on the bottom (and C7 is not yet on the board).
As can be seen on the second image, this SMD can be real pain to solder
especially when the design is dense and a ground plane is used...