Product data

HD404818 Series
91
Input/Output Characteristics for High-Current Pins (HD40L4812, HD40L4814, HD40L4816,
HD40L4818: V
CC
= 2.7 to 6 V; HD407L4818: V
CC
= 3 to 5.5 V; GND = 0 V, T
a
= –20°C to +75°C,
unless otherwise specified)
Item Symbol Pin Min Typ Max Unit Test Condition
Input high
voltage
V
IH
D
0
–D
9
0.7V
CC
V
CC
+ 0.3 V
Input low
voltage
V
IL
D
0
–D
9
–0.3 0.3V
CC
V
Output high
voltage
V
OH
D
0
–D
9
V
CC
–1.0 V –I
OH
= 0.5 mA
Pull-up MOS
current
–I
PU
D
0
–D
9
54090µAV
CC
= 3 V,
V
in
= 0 V
Output low
voltage
V
OL
D
0
–D
9
2.0 V I
OL
= 15 mA,
V
CC
= 4.5 to 6 V
0.4 V I
OL
= 0.4 mA
Input/output
leakage
current*
|I
IL
|D
0
–D
9
1 µAV
in
= 0 V – V
CC
Note: * Output buffer current is excluded.
Liquid Crystal Circuit Characteristics (HD40L4812, HD40L4814, HD40L4816, HD40L4818: V
CC
=
2.7 to 6 V; HD407L4818: V
CC
= 3 to 5.5 V; GND = 0 V, T
a
= –20°C to +75°C, unless otherwise
specified)
Item Symbol Pin Min Typ Max Unit Test Condition Notes
Segment driver voltage
drop
V
DS
SEG1 to
SEG32
0.6 V I
d
= 3 µA1
Common driver voltage
drop
V
DC
COM1 to
COM4
0.3 V I
d
= 3 µA1
LCD power supply
dividing resistance
R
W
100 300 900 kΩ
LCD voltage V
LCD
V
1
2.7 V
CC
V 2, 3
Notes: 1. Voltage drops from pins V
1
, V
2
, V
3
, and GND to each segment and common pin.
2. Keep the relation V
CC
≥ V
1
≥ V
2
≥ V
3
≥ GND when V
LCD
is supplied by an external power supply.
3. V
LCD
min. = 2.7 V (HD40L4812, HD40L4814, HD40L4816, HD40L4818)
V
LCD
min. = 3 V (HD407L4818)