Frequency of oscillation OSC fSCP : Frequency of shift clock (fSCP = fOSC / 2) fR : Frequency of Frame M : Number of characters on one line (number of dots on one line 8 M) For all font sizes (e.g. 7 × 8, 6 × 8, 5× 8) the oscillation frequency remains constant. N : Number of rows (duty = 1 / 8N) 8M 1 ▯8N
