HD66421 Datasheet, PDF (13/46 Pages) Hitachi Semiconductor – (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD)

Preliminary
LCD Driver Configuration
Row and column outputs: The HD66421's row
outputs is only both sides. In any case, each output's
function is fixed; COM1 to COM100 output row
signals and SEG1 to SEG160 output column signals.
Rev. 1.1E '99.02.10
HD66421
Row outputs from
both sides of LCD
Dot-matrix Display
160 x 100
50-channel
row output
COM51 to
COM100
160-channel
column output
SEG1 to SEG160
HD66421
50-channel
row output
COM1 to
COM50
Figure 4 Common outputs from both sides
13