Side A
* (In Red) STMicroelectronics UIC-WUP MCE GH226 * (In Orange) STMicroelectronics MSA3D 01F * (In Yellow) Texas Instruments TSC 2046I Low Voltage I/O Touch Screen Controller
Side B
* (In Red) InvenSense ITG-3280 Gyroscope * (In Orange) Micron 25Q256A 256 Mb Serial Flash * (In Yellow) DRC-WUP 811309J31 1217LU603 * (In Cyan) Texas Instruments AIC3012 Audio Converter * (In Blue) Texas Instruments 1010007
Pictures and information from: http://www.ifixit.com/Teardown/Nintendo+Wii+U+Teardown/11796/4