In the sub 30-pin area is the R8C/3Gx, which is offered in a 24-pin package. This group packs a great deal of functionality in a very small package. The 3Gx adds two channels of DAC, 4 extra inputs for the A/D converter, and offers up to 32KB of Flash, 4KB of Data Flash, and 2.5KB of RAM all in a 4mm x 4mm QFN.