Product data

HD404818 Series
82
Input/Output Characteristics for High-Current Pins (HD404812, HD404814, HD404816, HD404818:
V
CC
= 4 to 6 V; HD4074818: V
CC
= 4 to 5.5 V; GND = 0V, 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
= 1.0 mA
Pull-up MOS
current
–I
PU
D
0
–D
9
30 100 180 µAV
CC
= 5 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
= 1.6 mA
Input/output
leakage
current*
|I
IL
|D
0
–D
9
1 µAV
in
= 0 V to V
CC
Note: * Output buffer current is excluded.
Liquid Crystal Circuit Characteristics (HD404812, HD404814, HD404816, HD404818: V
CC
= 4 to 6
V; HD4074818: V
CC
= 4 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 Note
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
4V
CC
V2
Notes: 1. Voltage drops from pins V
1
, V
2
, V
3
, and GND to each segment and common pin.
2. Keep the relationship V
CC
≥ V
1
≥ V
2
≥ V
3
≥ GND when V
LCD
is supplied by an external power
supply.