HD66523 Datasheet, PDF (12/19 Pages) Hitachi Semiconductor – (240-Channel Common Driver with Internal LCD Timing Circuit)

HD66523
Example of System Configuration (3)
Figure 9 shows a system configuration for a 320 * 480 dots LCD panel using segment driver HD66522
with internal bit-mapped RAM.
A0 ~ A16
DB0 ~ DB7
CS,WE,OE
17
8
3
LS0
LS1 HD66522
LS2 _{(ID No.0)}
SHL
HD66522
(ID No.2)
V_CC
LS0
LS1
LS2
SHL
320
COM1
COM2
LCD
COM239
COM240
COM241
COM242
COM479
COM480
V_CC
Power supply circuit
320
V_CC
V_CC
LS0
LS1
HD66522
LS2 (ID No.1)
HD66522
LS0
LS1
(ID No.3) LS2
SHL
SHL
VRH, VM, VRL, VLCD, V_EE
VCH, VM, VCL, VLCD, V_EE
Figure 9 System Configuration (3)
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