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Silicon Labs CP210x: How do I handle unused pins on the CP2104?

CP21xx

Unused pins of CP2104 should be treated as follows.

Flow control pins (CTS, RTS, DSR, DTR, DCD, RI) Not connected (as described in the datasheet)
Suspend pin (SUSPEND, /SUSPEND) Not connected (as described in the datasheet)
GPIO pins Not connected (as described in the datasheet)
VPP pin Not connected (as described in the datasheet)
NC pin Unconnected or connected to VIO (as specified in datasheet)

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