Preliminary
HD66750/1
(128 x 128-dot Graphics LCD Controller/Driver with
Four-grayscale Functions)
Rev 0.7
July 26th, 1999
Description
The HD66750/1, dot-matrix graphics LCD controller and driver LSI, displays 128-by-128-dot graphics
for four monochrome grayscales. Since the HD66750/1 incorporates bit-operation functions and a 16-bit
high-speed bus interface, it enables efficient data transfer and high-speed rewriting of data in the graphics
RAM. The following functions allow the user to easily see a variety of information: a smooth scroll
display function that fixed-displays a part of the graphics icons and perform vertical smooth scrolling of the
remaining bit-map areas, a double-height display function, and a hardware-supported window cursor
display function.
The HD66750/1 has various functions to reduce the power consumption of an LCD system such as low-
voltage operation of 1.8 V min., a booster to generate maximum seven-times LCD drive voltage from the
supplied voltage, and voltage-followers to decrease the direct current flow in the LCD drive bleeder-
resistors. Combining these hardware functions with software functions, such as a partial display with
low-duty drive and standby and sleep modes, allows precise power control. The HD66750/1 is suitable
for any mid-sized or small portable battery-driven product requiring long-term driving capabilities, such as
digital cellular phones supporting a WWW browser, bidirectional pagers, and small PDAs.
Features
¥
¥
¥
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128
´
128-dot graphics display LCD controller/driver for four monochrome grayscales
Fixed display of graphics icons (pictograms)
16-/8-bit high-speed bus interface capability
Bit-operation functions for graphics processing incorporated:
Ñ
Write-data mask function in bit units
Ñ
Bit rotation function
Ñ
Bit logic-operation function
Low-power operation support:
Ñ
Vcc = 1.8 to 3.6 V (low voltage)
Ñ
V
LCD
= 5 to 15.5 V (liquid crystal drive voltage)
Ñ
Two-, five-, six-, or seven-times booster for liquid crystal drive voltage
Ñ
64-step contrast adjuster and voltage followers to decrease direct current flow in the LCD drive
bleeder-resistors
¥
1
HD66750/1
Ñ Power-save functions such as the standby mode and sleep mode supported
Ñ
Programmable drive duty ratios and bias values displayed on LCD
128-segment
´
128-common liquid crystal display driver
n-raster-row AC liquid-crystal drive (C-pattern waveform drive)
Duty ratio and drive bias (selectable by program)
Window cursor display supported by hardware
Vertical smooth scroll
Partial smooth scroll control (fixed display of graphics icons)
Vertical double-height display by each display raster-row
Black-and-white reversed display
No wait time for instruction execution and RAM access
Internal oscillation and hardware reset
Shift change of segment and common driver
¥
¥
¥
¥
¥
¥
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Table 1
Progammable Display Sizes and Duty Ratios
Graphics Display
Duty Optimum Bit-map
12 x 12-dot
Ratio Drive Bias Display Area Font Width
1/16
1/24
1/32
1/72
1/80
1/88
1/96
1/5
1/6
1/6
1/9
1/10
1/10
1/10
128 x 16 dots 1 line x 10
characters
128 x 24 dots 2 lines x 10
characters
128 x 32 dots 2 lines x 10
characters
128 x 72 dots 6 lines x 10
characters
128 x 80 dots 6 lines x 10
characters
128 x 88 dots 7 lines x 10
characters
128 x 96 dots 8 lines x 10
characters
128 x 104
dots
128 x 112
dots
128 x 120
dots
128 x 128
dots
8 lines x 10
characters
9 lines x 10
characters
12 x 13-dot 14 x 15-dot
Font Width Font Width
1 line x 10
characters
1 line x 10
characters
1 line x 9
characters
1 line x 9
characters
16 x 16-dot
Font Width
1 line x 8
characters
1 line x 8
characters
2 lines x 8
characters
4 lines x 8
characters
5 lines x 8
characters
5 lines x 8
characters
6 lines x 8
characters
6 lines x 8
characters
7 lines x 8
characters
7 lines x 8
characters
8 lines x 8
characters
8 x 10-dot
Font Width
1 line x 16
characters
2 lines x 16
characters
3 lines x 16
characters
7 lines x 16
characters
8 lines x 16
characters
8 lines x 16
characters
9 lines x 16
characters
10 lines x 16
characters
11 lines x 16
characters
12 lines x 16
characters
12 lines x 16
characters
2 lines x 10 2 lines x 9
characters characters
5 lines x 10 4 lines x 9
characters characters
6 lines x 10 5 lines x 9
characters characters
6 lines x 10 5 lines x 9
characters characters
7 lines x 10 6 lines x 9
characters characters
8 lines x 10 6 lines x 9
characters characters
8 lines x 10 7 lines x 9
characters characters
1/104 1/11
1/112 1/11
1/120 1/11
1/128 1/11
10 lines x 10 9 lines x 10 8 lines x 9
characters
characters characters
10 lines x 10 9 lines x 10 8 lines x 9
characters
characters characters
2
HD66750/1
<Target values>
Total Current Consumption Characteristics (Vcc = 3 V, TYP Conditions, LCD
Drive Power Current Included)
Total Power Consumption
Normal Display Operation
Character
Display Dot
Size
Duty
Ratio
R-C
Oscillation Frame
Frequency Frequency
70 kHz
70 kHz
70 kHz
70 kHz
70 kHz
70 kHz
70 kHz
70 kHz
70 kHz
70 kHz
70 kHz
72 Hz
72 Hz
72 Hz
71 Hz
73 Hz
74 Hz
74 Hz
73 Hz
71 Hz
76 Hz
72 Hz
Internal
Logic
(15
mA)
(15
mA)
(15
mA)
(40
mA)
(40
mA)
(45
mA)
(45
mA)
(45
mA)
(50
mA)
(50
mA)
(50
mA)
LCD
Power
(15
mA)
(15
mA)
(15
mA)
(18
mA)
(18
mA)
(18
mA)
(20
mA)
(20
mA)
(25
mA)
(25
mA)
(25
mA)
Sleep
Mode
Standby
Mode
Total*
128 x 16 dots 1/16
128 x 24 dots 1/24
128 x 32 dots 1/32
128 x 72 dots 1/72
128 x 80 dots 1/80
128 x 88 dots 1/88
128 x 96 dots 1/96
128 x 104 dots 1/104
128 x 112 dots 1/112
128 x 120 dots 1/120
128 x 128 dots 1/128
Two-times (10
mA)
0.1
mA
(45
mA)
Two-times (10
mA)
(45
mA)
Two-times (10
mA)
(45
mA)
Five-times (10
mA)
(130
mA)
Five-times (10
mA)
(130
mA)
Five-times (10
mA)
(135
mA)
Five-times (10
mA)
(145
mA)
Five-times (10
mA)
(145
mA)
Six-times
(200
mA)
Six-times
(200
mA)
Six-times
(200
mA)
(10
mA)
(10
mA)
(10
mA)
Note: When a two-, five-, six-, or seven-times booster is used:
the total power consumption = internal logic current + LCD power current x 2 (two-times booster),
the total power consumption = internal logic current + LCD power current x 5 (five-times booster),
the total power consumption = internal logic current + LCD power current x 6 (six-times booster), and
the total power consumption = internal logic current + LCD power current x 7 (seven-times booster)
Type Name
Types
HD66750TB0
HCD66750BP
HD66751TB0
HCD66751BP
External Dimensions
Bending TCP
Au-bump chip
Bending TCP
Au-bump chip
One side of COM
(Output from one side of the chip)
COM Driver Arrangement
Both sides of COM
(Output from left and right sides of the chip)
Display
Four monochrome
grayscales
3
HD66750/1
LCD Family Comparison
Items
Character display sizes
Graphic display sizes
Grayscale display
Multiplexing icons
Annunciator
Key scan control
LED control ports
General output ports
Operating power voltages
Liquid crystal drive voltages
Serial bus
Parallel bus
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
HD66705U
12 characters x 2 lines
Ñ
Ñ
40
Static: 10
Ñ
Ñ
Ñ
2.4 V to 5.5 V
3 V to 9 V
Clock-synchronized serial
4 bits, 8 bits
1/10, 18
1/4
B
Two- or three-times
Incorporated (external)
Incorporated
Incorporated
Ñ
Line unit
Yes
60 x 8
9,600
32 x 5
8 x5
240
4
5 x8
Ñ
External resistor
(40, 80 kHz)
External
Partial display off,
Oscillation off,
Liquid crystal power off
SEG only
Ñ
Ñ
TCP-153
Yes
Yes
153
9.69 x 2.73
120
mm
HD66717
12 characters x 4 lines
Ñ
Ñ
40
Static: 10
Ñ
Ñ
Ñ
2.4 V to 5.5 V
3 V to 13 V
I2C, Clock-synchronized
serial
4 bits, 8 bits
1/10, 18, 26, 34
1/4, 1/6
B
Two- or three-times
Incorporated (external)
Incorporated
Incorporated
Ñ
Line unit
Yes
60 x 8
9,600
32 x 5
8 x5
240
4
5 x8
Ñ
External resistor
(40-160 kHz)
External
Partial display off,
Oscillation off,
Liquid crystal power off
SEG only
Ñ
Ñ
TCP-153
Yes
Yes
153
10.88 x 2.89
120
mm
HD66727
12 characters x 4 lines
Ñ
Ñ
40
Static: 12
4 x8
3
3
2.4 V to 5.5 V
3 V to 13 V
I2C, Clock-synchronized
serial
Ñ
1/10, 18, 26, 34
1/4, 1/6
B
Two- or three-times
Incorporated (external)
Incorporated
Incorporated
Ñ
Line unit
Yes
60 x 8
11,520
32 x 6
8 x6
240
4
5 x 8, 6 x 8
Ñ
External resistor
(40-160 kHz)
External
Partial display off,
Oscillation off,
Liquid crystal power off,
Key wake-up interrupt
SEG, COM
Ñ
Ñ
TCP-158
Yes
Yes
158
11.39 x 2.89
120
mm
SEG/COM direction switching
QFP package
TQFP package
TCP package
Bare chip
Bumped chip
No. of pins
Chip sizes
Pad intervals
4
HD66750/1
LCD Family Comparison (cont)
Items
Character display sizes
Graphic display sizes
Grayscale display
Multiplexing icons
Annunciator
Key scan control
LED control ports
General output ports
Operating power voltages
Liquid crystal drive voltages
Serial bus
Parallel bus
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 areas
R-C oscillation resistor/
oscillation frequency
Reset function
Low power control
HD66724
12 characters x 3 lines
72 x 26 dots
Ñ
144
1/2 duty: 144
8 x4
Ñ
3
1.8 V to 5.5 V
3 V to 6.5 V
Clock-synchronized serial
4 bits, 8 bits
1/2, 10, 18, 26
1/4 to 1/6.5
B
Single, two-, or three-times
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 x8
72 x 26
HD66725
16 characters x 3 lines
96 x 26 dots
Ñ
192
1/2 duty: 192
8 x4
Ñ
3
1.8 V to 5.5 V
3 V to 6.5 V
Clock-synchronized serial
4 bits, 8 bits
1/2, 10, 18, 26
1/4 to 1/6.5
B
Single, two-, or three-times
Incorporated (external)
Incorporated
Incorporated
3-dot unit
Line unit
Yes
80 x 8
20,736
384 x 8
96 x 8
240 + 192
64
6 x8
96 x 26
HD66726
16 characters x 5 lines
96 x 42 dots
Ñ
192
1/2 duty: 192
8 x4
Ñ
3
1.8 V to 5.5 V
4.5 V to 11 V
Clock-synchronized serial
4 bits, 8 bits
1/2, 10, 18, 26, 34, 42
1/2 to 1/8
B
Single, two-, three-, or four-
times
Incorporated (external)
Incorporated
Incorporated
Ñ
Line unit
Yes
80 x 8
20,736
480 x 8
96 x 8
240 + 192
64
6 x8
96 x 42
External resistor, incorporated External resistor, incorporated External resistor
(32 kHz)
(32 kHz)
(50 kHz)
External
Partial display off,
Oscillation off,
Liquid crystal power off,
Key wake-up interrupt
SEG, COM
Ñ
Ñ
TCP-146
Ñ
Yes
146
10.34 x 2.51
80
mm
External
Partial display off,
Oscillation off,
Liquid crystal power off,
Key wake-up interrupt
SEG, COM
Ñ
Ñ
TCP-170
Ñ
Yes
170
10.97 x 2.51
80
mm
External
Partial display off,
Oscillation off,
Liquid crystal power off,
Key wake-up interrupt
SEG, COM
Ñ
Ñ
TCP-188
Yes
Yes
188
13.13 x 2.51
100
mm
SEG/COM direction switching
QFP package
TQFP package
TCP package
Bare chip
Bumped chip
No. of pins
Chip sizes
Pad intervals
5
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