HD66420 Datasheet, PDF (24/52 Pages) Hitachi Semiconductor – (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD)

HD66420
RS
WR
RD
Input
data
Output
data
Address
H’02
X Address
[n]
[*,*]
H’03
Y Address
[m]
H’04
Undetermined Data[n,m] Data[n,m+1]
[n,*]
[n,m]
[n,m+1]
[n,m+2]
Dummy
read
Figure 12 Display RAM read sequence
24