august 1998 8-23 mic10939/10942/10943 micrel 8 mic10939/10942/10943 v. f. dot matrix display controller summary information*not recommended for new designs ordering information part number temperature range package mic10939j-50 0 c to +70 c 44-pin plcc mic10939P-50 0 c to +70 c 40-pin p-dip mic10939Pe-50 C40 c to +85 c 40-pin p-dip mic10942p-50 0 c to +70 c 40-pin p-dip mic10942pe-50 C40 c to +85 c 40-pin p-dip mic10943p-50 0 c to +70 c 40-pin p-dip mic10943pe-50 C40 c to +85 c 40-pin p-dip general description the mic10939, mic10942, and mic10943 dot matrix dis- play controller is a three-chip mos/lsi general purpose display controller system designed to interface to dot matrix displays (vacuum fluorescent or led). the three-chip set will drive displays with up to 46 anodes (dots) and up to 20 grids (characters) plus a cursor. the chips can be cascaded to drive larger displays of up to 80 charac- ters. an internal pla-type decoder provides character decoding and dot pattern generation for the full 96-character ascii set and an additional 32 special characters. micrel has received the rights from rockwell international to manufacture and market this product and reproduce the specifications, including references to rockwell. block diagram inversion logic 8-bit shift register anode drivers and latches 128 35 pla level detect control logic grid drivers 20-character 5 12 dot matrix display mic10942 mic10939 sg01-sg23 str00?tr19 data- load sclk -dis inversion logic 8-bit shift register anode drivers and latches 128 23 pla level detect mic10943 sg01-sg23 level detect level detect 23 23 20 8 ram 20 cursor host * contact micrel for more information. features ? 20-character display driver cascadable to 80 characters ? standard 5 12 character font ? separate cursor driver output ? two 128 23 plas provides segment decoding for full 96-character ascii set, plus 32 special characters ? serial or parallel data input for 8-bit display mode controls ? brightness, refresh rate, and display mode controls ? 40-pin dip or 44-pin plcc (mic10939) ? 28-pin dip (mic10942 and mic10943)
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