Product data

HD404818 Series
8
LCD Driver/Controller
V
1
, V
2
, V
3
: Power supply pins for the LCD driver. Since the LCD driving resistors are provided internally,
no lines should be connected to these pins. The voltage on each pin is V
CC
≥ V
1
≥ V
2
≥ V
3
≥ GND. See the
Liquid Crystal Display section for details.
COM1 to COM4: Common signal output pins for the LCD display. See the Liquid Crystal Display section
for details.
SEG1 to SEG32: Segment signals output pins for the LCD display. See the Liquid Crystal Display section
for details.
Voltage Comparator
COMP
0
, COMP
1
, VC
ref
: Analog input pins for the voltage comparator. VC
ref
is used as a reference voltage
pin to input the threshold voltage of the analog input pin.