High Quality Content by WIKIPEDIA articles! The Motorola 6845 (commonly MC6845) is a video address generator first introduced by Motorola and used in the MDA and CGA video adapters, Amstrad CPC and BBC Micro. Its functionality was duplicated and extended by custom circuits in the EGA and VGA video adapters. It is related to the later 6545 manufactured by MOS Technology (Commodore Semiconductor Group) and Rockwell (in two variations) and was cloned as the Hitachi 46505. It is also known as the 6845 CRTC or the CRTC6845, meaning cathode ray tube controller. Although intended for designs based on the Motorola 6800 CPU and given a related part number, it has been used alongside various other processors.

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