ST7549T controller/driver equivalent, 68 x 102 dot matrix lcd controller/driver.
Single-chip LCD controller & driver Driver Output Circuits 102 segment / 67 common+1 ICON common (1/68 duty) 102 segment / 32 common+1 ICON common (1/33 duty) 102 segment.
LCD Driver outputs Pin Name I/O Description LCD segment driver outputs. This display data and the M signal control the output voltage of segment driver. Segment drover output voltage Display data M (Internal) Normal display Reverse display SEG0 to S.
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