HD66130T Datasheet, PDF (9/16 Pages) Hitachi Semiconductor – 320-channel Low-voltage Segment Driver for Dot-Matrix STN Liquid Crystal Display

Application Example
HD66130T
VLL, R
VML, R
VHL, R
VLCDL, R
VEEL, R
DIO1
DISP
SHL
MWS4–0
M
GND
CL
Vcc
MODE
VLCD
VH (COM)
Vcc
V0 (SEG)
VM
V1 (SEG)
GND
VL (COM)
VEE
COM1
COM2
COM3
COM4
COM5
COM236
COM237
COM238
COM239
COM240
LCD Panel
640 x 240
1/240 duty
Y320 to Y1
HD66130T
Y320 to Y1
HD66130T
Controller
Notes:
1. When designing the board, connect a capacitor near the IC to stabilize power supply. Use two capacitors of about
0.1 µF for each IC (between Vcc and GND, V0 and GND, VLCD and GND, and VEE and GND).
2. In addition, for the power supply circuit, connect a capacitor of several µF or several tens of µF between the liquid
crystal power supply and GND. For set evaluation, confirm that there is no inversion of liquid crystal drive power
supply and level power supply in the period between when the liquid crystal drive power supply is turned on and
when it is turned off.
3. Configuring the LCD panel using the HD66130 when using the select COMMON driver.
The select COMMON driver
COMMON driver
HD66131 (240OUT)
HD66133 (120OUT)
HD66135 (120OUT)
select
q
×
q
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