hd66712u Renesas Electronics Corporation., hd66712u Datasheet - Page 4

• Manufacturer Part Number: hd66712u
• Description: Dot-matrix Liquid Crystal Display Controller/driver - Hitachi Semiconductor
• Manufacturer: Renesas Electronics Corporation.

LCD-II Family Comparison
Item
Power supply voltage
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
(frame frequency)
R
f
f
oscillation frequency
resistance
HD66702
(standard)
2.7V to 5.5V
(low voltage)
3.0V to 8.3V
20 characters
7,200 bits
(160 5
characters and 32
5
characters)
100
16
B
External
(adjustable)
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)
5V ±10 %
None
1/8, 1/11, and 1/16 1/17 and 1/33
64 bytes
80 bytes
None
External resistor or
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
40 segments
9,600 bits
(240 5
characters)
64 bytes
80 bytes
8 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
8 dot
HD66712S
2.7V to 5.5V
3.0V to 13.0V
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)
91 k : 5-V
operation;
75 k : 3-V
operation
8 dot
HD66712U
2.7V to 11.0V
130 k : 5-V
operation
110 k : 3-V
operation
HD66712U
367