HD66520 Datasheet, PDF (8/45 Pages) Hitachi Semiconductor – 160-Channel 4-Level Grayscale Display Column Driver with Internal Bit-Map RAM

Block Diagram
SHL
LS1, LS0
A15 to A0
DB7 to DB0
FLM
CS
WE
OE
CL1
M
V4L, V3L
V2L, V1L
HD66520T
Address
management
circuit
Bidirectional
buffer
Data line decoder
I/O selector
Line
counter
RAM
160 × 240 × 2 bits
Timing
control
circuit
FRC control circuit
Data latch circuit (1)
Data latch circuit (2)
LCD drive circuit
DISPOFF
V4R, V3R,
V2R, V1R
Y1 Y2 Y3
Y160
Figure 4 Block Diagram
1021