HD66760 Datasheet, PDF (73/105 Pages) Hitachi Semiconductor – 104 X 80-dot Graphics LCD Controller/Driver for 256 Colors

HD66760
VLPS
0.1 µF*²
(B characteristics)
VLREF
(+)
V1OUT VR
R
V2OUT
R
V3OUT
R0
1 µF*²
(B characteristics)
GND
V4OUT
R
V5OUT
R
GND
HD66760
+
–
V1
+
–
V2
+
–
V3
LCD
driver
+
–
V4
+
–
V5
GND
Vci
C1+
C1–
C2+
C2–
C3+
C3–
C4+
C4–
C5+
C5–
C6+
C6–
VLOUT
Step-up
circuit
PS = "11"
SEG1 to SEG312
COM1 to COM80
Notes: 1. Adjust the capacitance value of the capacitor after the LCD panel has been mounted.
2. Use the capacitors with breakdown voltages equal to or higher than the VLCD (= VLPS–
GND) voltage for connecting to VLPS and V1OUT through V5OUT. Determine the
capacitor breakdown voltages by checking VLCD voltage fluctuation.
Figure 49 External Power Supply Circuit for LCD Drive Voltage Generation