HD66420 Datasheet, PDF (12/52 Pages) Hitachi Semiconductor – (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD)

HD66420
LCD Driver Configuration
Row and column outputs: The HD66420 outputs row signals from both sides. In any case, each output’s
function is fixed; COM1 to COM80 output row signals and SEG1 to SEG160 output column signals.
Row outputs from
both sides of LCD
Dot-matrix Display
160 × 80
40-channel
row output
COM41 to
COM80
160-channel column
output
SEG1 to SEG160
HD66420
40-channel
row output
COM1 to
COM40
Figure 4 Common outputs from both sides
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