Imaging Resource: Canon announced that it has successfully developed an APS-H-size CMOS image sensor that delivers an image resolution of approximately 120M (13,280 x 9,184 pixels). Its imaging area is about 29.2 x 20.2 sq. mm, suggesting 2.2um pixel size - quite an achievement assuming that Canon process is 0.25um. The sensor's speed is 9.5fps continuous. The sensor can output Full HD video from any approximately one-sixtieth-sized section of its total surface area.
Just over a year ago Canon announced 50MP APS-H sensor. The highest resolution Canon DSLR camera is still limited by 21MP, to the best of my knowledge.