The M52758 is a semiconductor integrated circuit f or the RGBHV interf ace. The dev ice f eatures switching signals input f rom two ty pes of image and outputting them to CRT display etc. Sy nchronous signal meeting the f requency band of 10 kHz to 200 kHz are output at TTL. The f requency band of v ideo signals is 250MHz, acquiring high-resolution images,and are optimum as an interf ace IC with high-resolution CRT display and v arious new media.