hd66710 Renesas Electronics Corporation., hd66710 Datasheet - Page 3

• Manufacturer Part Number: hd66710
• Description: Dot Matrix Liquid Crystal Display Controller/driver
• Manufacturer: Renesas Electronics Corporation.

LCD-II Family Comparison
Item
Power supply voltage 2.7V to 5.5V
Liquid crystal drive
voltage
Maximum display
digits per chip
Segment display
Display duty cycle
CGROM
CGRAM
DDRAM
SEGRAM
Segment signals
Common signals
Liquid crystal drive
waveform
Bleeder resistor for
LCD power supply
Clock source
R
frequency (frame
frequency)
R
Liquid crystal voltage
booster circuit
f
f
oscillation
resistance
LCD-II
(HD44780U)
3.0V to 11V
8 characters
9,920 bits
(208 5
characters and
32 5
characters)
40
16
A
External
(adjustable)
external clock
270 kHz ±30%
(59 to 110 Hz for
1/8 and 1/16 duty
cycle; 43 to 80 Hz
for 1/11 duty cycle)
91 k : 5-V
operation;
75 k : 3-V
operation
None
None
1/8, 1/11, and 1/16 1/8, 1/11, and 1/16 1/17 and 1/33
64 bytes
80 bytes
None
Extenal resistor or
2 lines
10 dot
8 dot
5V ±10%
HD66702R
(standard)
2.7V to 5.5V
(low voltage)
3.0V to 8.3V
20 characters
None
7,200 bits
(160 5
characters and
32 5
characters)
64 bytes
80 bytes
None
100
16
B
External
(adjustable)
External resistor or
external clock
320 kHz ±30%
(70 to 130 Hz for
1/8 and 1/16 duty
cycle; 51 to 95 Hz
for 1/11 duty cycle)
68 k : 5-V
operation;
56 k : (3-V
operation)
None
2 lines
10 dot
7 dot
HD66710
2.7V to 5.5V
3.0V to 13.0V
16 characters
2 lines/
8 characters
4 lines
9,600 bits
(240 5
characters)
64 bytes
80 bytes
40
33
B
External
(adjustable)
External resistor or
external clock
270 kHz ±30%
(56 to 103 Hz for
1/17 duty cycle; 57
to 106 Hz for 1/33
duty cycle)
91 k : 5-V
operation;
75 k : 3-V
operation)
up circuit
40 segments
8 bytes
2-3 times step-
8 dot
HD66712U
2.7V to 5.5V
2.7V to 11.0V
24 characters
2 lines/
12 characters
4 lines
60 segments
1/17 and 1/33
9,600 bits
(240 5
characters)
64 bytes
80 bytes
16 bytes
60
34
B
External
(adjustable)
External resistor or
external clock
270 kHz ±30%
(56 to 103 Hz for
1/17 duty cycle; 57
to 106 Hz for 1/33
duty cycle)
130 k : 5-V
operation;
110 k : 3-V
operation
2-3 times step-
up circuit
HD66710
8 dot
293