LAPIS Semiconductor ML610471, User Manual, Page: 36 / 281

ML610471/472/473/Q471/Q472/Q473 User's Manual
Chapter 1 Overview
1-24
Pin name I/O Description
Primary/
Secondary
Logic
LCD drive signal
COM0 to COM4 O Common output pins. COM2, COM3, and COM4 can be switched
to SEG0, SEG1, and SEG2, respectively, through the register
setting. To change the setting, switch between COM4 and SEG2 for
one pin and switch between COM3, COM4 and SEG1, SEG2 for
two pins.
— —
SEG0 to
SEG13 O Segment output pin. The SEG0, SEG1, and SEG2 pins are for
switching the register setting with the COM2, COM3, and COM4.
— —
SEG14 to
SEG17 O Segment output pin. Incorporated into
ML610472/ML610Q472/ML610473/ML610Q473, not into
ML610471/ML610Q471.
— —
SEG18 to
SEG21 O Segment output pin. Incorporated into ML610473/ML610Q473, not
into ML610471/ML610Q471/ML610472/ML610Q472.
— —
LCD driver power supply
VL1 —
— —
VL2
—
— —
VL3
—
Power supply pin for LCD bias (internally generated) or power
supply connection pin. Depending on LCD Bias setting and V
DD
voltage level, V
DD
or V
DDL
or capacitor is connected. For details of
the connection method, see Chapter 19, "LCD Drivers".
— —
C1
—
— —
C2
—
Power supply pins for LCD bias (internally generated). Capacitor
C
12
(see Appendix C measuring circuit 1) is connected between C1
and C2.
— —
Test
TEST0
I/O Pin for testing. A pull-down resistor is internally connected. — Positive
Power supply
VSS
— Negative power supply pin. — —
VDD — Positive power supply pin. — —
VDDL — Positive power supply pin (internally generated) for internal logic.
Capacitors C
L0
and C
L1
(see Appendix C measuring circuit 1) are
connected between this pin and VSS.
— —
VPP — Power supply pin for programming Flash ROM. A pull-down resistor
is internally connected.
This pin is only for ML610Q471/ML610Q472/ML610Q473.
— —