
HD66726
5
LCD-II Family Comparison (cont)
Items
Character display sizes
Graphic display sizes
Multiplexing icons
Annunciator
Key scan control
LED control ports
General output ports
Operating power voltages
Liquid crystal drive voltages
Serial bus
HD66717
12 characters x 4 lines
—
40
Static: 10
—
—
—
2.4 V to 5.5 V
3 V to 13 V
I2C, Clock-synchronized
serial
4 bits, 8 bits
Impossible
1/10, 18, 26, 34
1/4, 1/6
B
Double or triple
Incorporated (external)
Incorporated
Incorporated
—
Line unit
Yes
60 x 8
9,600
32 x 5
8 x 5
240
4
5 x 8
—
External resistor
(40-160 kHz)
External
Partial display off
Display off
Oscillation off
Liquid crystal power off
HD66727
12 characters x 4 lines
—
40
Static: 12
4 x 8
3
3
2.4 V to 5.5 V
3 V to 13 V
I2C, Clock-synchronized
serial
—
Impossible
1/10, 18, 26, 34
1/4, 1/6
B
Double or triple
Incorporated (external)
Incorporated
Incorporated
—
Line unit
Yes
60 x 8
11,520
32 x 6
8 x 6
240
4
5 x 8, 6 x 8
—
External resistor
(40-160 kHz)
External
Partial display off
Display off
Oscillation off
Liquid crystal power off
Key wake-up interrupt
HD66724
12 characters x 3 lines
72 x 26 dots
144
1/2 duty: 144
8 x 4
—
3
1.8 V to 5.5 V
3 V to 6.5 V
Clock-synchronized serial
Parallel bus
Expansion driver control
Liquid crystal drive duty ratios
Liquid crystal drive biases
Liquid crystal drive waveforms
Liquid crystal voltage booster
Bleeder-resistor for liquid crystal drive
Liquid crystal drive operational amplifier
Liquid crystal contrast adjuster
Horizontal smooth scroll
Vertical smooth scroll
Double-height display
DDRAM
CGROM
CGRAM
SEGRAM
No. of CGROM fonts
No. of CGRAM fonts
Font sizes
Bit map area
R-C oscillation resistor/
oscillation frequency
Reset function
Low power control
4 bits, 8 bits
Impossible
1/2, 10, 18, 26
1/4 to 1/6.5
B
Single, double or triple
Incorporated (external)
Incorporated
Incorporated
3-dot unit
Line unit
Yes
80 x 8
20,736
384 x 8
72 x 8
240 + 192
64
6 x 8
72 x 26
External resistor,
incorporated (32 kHz)
External
Partial display off
Display off
Oscillation off
Liquid crystal power off
Key wake-up interrupt
SEG/COM direction switching
SEG only
SEG, COM
SEG, COM
QFP package
—
—
—
TQFP package
—
—
—
TCP package
TCP-153
TCP-158
TCP-146
Bare chip
Yes
Yes
—
Bumped chip
Yes
Yes
Yes
No. of pins
153
158
146
Chip sizes
10.88 x 2.89
120
μ
m
11.39 x 2.89
120
μ
m
10.34 x 2.51
80
μ
m
Pad intervals