The MIC10941 and MIC10939 Alphanumeric and Bargraph Display Controller is a two-chip MOS/LSI general purpose display controller system designed to interface with bargraph and segmented displays (vacuum fluorescent or LED). The two-chip set will drive displays with up to 16 segments (plus decimal point and comma tail) and up to 20 grids (characters) plus a cursor. The chips can be cascaded to drive larger displays of 80 characters. Segment decoding for ASCII characters and bargraph patterns is accomplished through an internal PLA.