HD66732
(Graphics Liquid Crystal Display Controller/Driver Supporting JIS
Level-1 and Level-2 Kanji ROM)
ADE-207-314(Z)
Rev 1.2
Aug, 1999
Description
The HD66732 is a dot-matrix liquid crystal display (LCD) controller and driver LSI that displays 11-by-12
dot Japanese characters consisting of kanji and hiragana according to the Japanese Industrial Standard (JIS)
Level-1 and Level-2 Kanji Set. The HD66732 incorporates the following five functions on a single chip:
(1) display control function for the dot matrix LCD, (2) a display RAM to store character codes, (3) ROM
fonts to support level-1 and level-2 kanji, (4) an LCD driver, and (5) a booster to drive the LCD. A 4-line
10-character kanji display can be easily achieved by receiving character codes (2 bytes/character) from the
microcomputer. The software processing loads on the microcomputer for kanji-font display development
can be greatly reduced, and an external kanji character generator or key scan circuit is not needed. The
character font includes font ROMs of 6,353 kanji from the JIS Level-1 and Level-2 Kanji Set, 285 JIS non-
kanji characters, and 256 half-size alphanumeric characters and symbols. Full-size fonts such as Japanese
kanji and half-size fonts such as alphanumeric characters can be displayed together. In addition, the
HD66732 supports a 120-by-52 dot graphics display function that can display not only characters such as
kanji but also graphics such as drawings or maps.
The HD66732 has various functions to reduce the power consumption of an LCD system, such as low-
voltage operation at 2.4 V, a low-power LCD drive operating amplifier, and a booster to switch the
boosting rate. Combining these hardware functions with software functions such as standby and sleep
modes allows precise power control. The HD66732 is suitable for any battery-driven product requiring
long-term driving capabilities such as cellular phones, pagers, or portable devices.
Features
•
Dot-matrix liquid crystal display controller/driver supporting the display of kanji from the JIS Level-1
and Level-2 Kanji Set
•
Kanji display and high-speed font development processing enabled by data transfer of two
bytes/character
•
4-line 10-character kanji and 120-by-52-dot graphics display
•
Mark display using 200 monochrome segments (marks) or 40 grayscale segments
•
Control up to a 4 x 8 (32 key) matrix key scan (at a serial interface)
1
HD66732
•
Large character generator ROM for full-size display: corresponds to 8,128 full-size fonts
Kanji according to JIS Level-1 Kanji (11 x 12 dots): 2,965-character font
Kanji according to JIS Level-2 Kanji (11 x 12 dots): 3,388-character font
JIS non-kanji (11 x 12 dots): 285-character font
•
Character generator ROM for half-size display: corresponds to 256 half-size fonts
Alphanumeric characters (6 x 12 dots): 128 fonts x 2 banks (256 fonts)
•
120-by-52-dot bit-map graphics display
•
Combined display of 11 x 12 dots for full-size fonts consisting of kanji and kana, 6 x 12 dots for half-
size fonts of alphanumeric characters and symbols
•
Low-power operation support:
Vcc = 2.4 to 5.5 V (low voltage)
Single, double, triple, or quadruple booster for liquid crystal drive voltage
Operational amplifier for low-power LCD drive supply and bleeder-resistors incorporated
Strong power-save functions such as the standby mode and sleep mode supported
Wake-up function using key scan interrupt
Programmable LCD-drive duty ratios and bias values
•
Various display control functions:
•
•
•
•
•
•
•
•
•
•
Combined display (super-imposed display) of kanji characters and bit map graphics
Vertical smooth scroll (dot unit)
Black-white reversed display of full screen
Display-line-unit black-white reversed/underline/blinking display
Black-white reversed/blinking/black-white reversed blinking character display
Display data RAM: 80 bytes (stores 40-character code in full size)
Character generator RAM: 780 bytes (stores 120-by-52-dot bit map areas) (30 full-size user fonts can be
displayed)
Segment RAM: 60 bytes (200 segments can be displayed)
Three-line clock synchronous serial bus, 4-/8-bit bus interface
No wait cycle for instruction execution and RAM access
120-segment x 54-common LCD driver
Three general output ports built-in
External R-C oscillator
LCD drive voltage: 4.5 V to 13.0 V
External dimensions: Tape carrier package (TCP) and slim chip with Au-bumps
2
HD66732
Table 1
Duty
Ratio
1/2
1/15
1/28
1/41
1/54
Programmable Display Sizes and Duty Ratios
Optimum
Drive Bias
1/2
1/5
1/6
1/7
1/8
Number of Full-size
Kanji Display
Characters
Unavailable
1 line x 10 characters
Graphics
Display Area
Unavailable
120 x 13 dots
Segment
Display
200
(Grayscale
segments:
40)
Scanned General
Keys
Ports
32 (4 x 8) 3
2 lines x 10 characters 120 x 26 dots
3 lines x 10 characters 120 x 39 dots
4 lines x 10 characters 120 x 52 dots
Type Name
External
Dimensions
Bending TCP
Display Lines
(Graphics Display)
4-line x 10-character
(120 x 52 dots)
Built-in Full-size
Font
JIS Level-1 and
Level-2 Kanji Set +
non-kanji
characters
JIS Level-1 and
Level-2 Kanji Set +
non-kanji
characters
Built-in Half-size
Font
Alphanumeric
characters
Type Name
HD66732A04TB0L
HD66732A04BP
Au-bumped chip
(slim chip)
4-line x 10-character
(120 x 52 dots)
Alphanumeric
characters
Example of Liquid Crystal Display
Figure 1 Combined Display of 4-line x 10-character Kanji and Graphics
3
HD66732
LCD Specification Comparison for Kanji Display
External Kanji ROM Type
Items
Kanji display area
Kanji character display
Half-size alphanumeric character display
Graphics display sizes
Multiplexing icons
Key scan control
General output port
Operating power voltages
Liquid crystal drive voltages
Serial bus
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
Contrast adjuster
Horizontal smooth scroll
Vertical smooth scroll
Double-height display
DDRAM
CGROM
Incorporated font
CGRAM
SEGRAM
Number of CGROM fonts
Number of CGRAM fonts
Font sizes
R-C oscillation resistor/
oscillation frequency
Reset function
Low power control
HD66724
72 x 24 dots
—
12 characters x 3 lines
72 x 26 dots
144
8x4
3
1.8 V to 5.5 V
3 V to 6 V
Clock-synchronized serial
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
Raster-row unit
Yes
80 x 8
21 k
Alphanumeric character +
kana
384 x 8
72 x 8
432
64
6x8
External resistor,
incorporated (32 kHz)
External
Partial display off
Display off
Oscillation off
Liquid crystal power off
Key wake-up interrupt
SEG, COM
—
TCP
—
Yes
146
10.34 x 2.51
80
µm
HD66725
96 x 24 dots
—
16 characters x 3 lines
96 x 26 dots
192
8x4
3
1.8 V to 5.5 V
3 V to 6 V
Clock-synchronized serial
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
Raster-row unit
Yes
80 x 8
21 k
Alphanumeric character +
kana
384 x 8
96 x 8
432
64
6x8
External resistor,
incorporated (32 kHz)
External
Partial display off
Display off
Oscillation off
Liquid crystal power off
Key wake-up interrupt
SEG, COM
—
TCP
—
Yes
170
10.97 x 2.51
80
µm
HD66726
96 x 40 dots
—
16 characters x 5 lines
96 x 42 dots
192
8x4
3
1.8 V to 5.5 V
4.5 V to 11 V
Clock-synchronized serial
4 bits, 8 bits
Impossible
1/2, 10, 18, 26, 34, 42
1/2 to 1/8
B
Single, double, triple, or
quadruple
Incorporated (external)
Incorporated
Incorporated
Impossible
Raster-row unit
Yes
80 x 8
21 k
Alphanumeric character +
kana
480 x 8
96 x 8
432
64
6x8
External resistor (50 kHz)
External
Partial display off
Display off
Oscillation off
Liquid crystal power off
Key wake-up interrupt
SEG, COM
—
TCP
—
Yes
185
13.13 x 2.51
100
µm
SEG/COM direction switching
QFP package
TCP package
Bare chip (without bumps)
Bumped chip
Number of pins
Chip sizes
Pad (bump) intervals
4
HD66732
LCD Specification Comparison for Kanji Display (cont)
Internal Kanji ROM Type
Items
Kanji display area
Kanji character display
Half-size alphanumeric character display
Graphics display sizes
Multiplexing icons
Key scan control
General output port
Operating power voltages
Liquid crystal drive voltages
Serial bus
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
Contrast adjuster
Horizontal smooth scroll
Vertical smooth scroll
Double-height display
DDRAM
CGROM
Incorporated font
CGRAM
SEGRAM
Number of CGROM fonts
Number of CGRAM fonts
Font sizes
R-C oscillation resistor/
oscillation frequency
Reset function
Low power control
HD66730
71 x 25 dots
6 characters x 2 lines
12 characters x 2 lines
(48 x 26 dots)
71
—
—
2.4 V to 5.5 V
3 V to 15 V
Clock-synchronized serial
8 bits
Possible
1/14, 27, 40, 53
1/4 to 1/8.3
B
Double or triple
External
—
—
Display unit
Raster-row unit
—
80 x 8
507 k + 9 k
JIS Level-1 Kanji Set,
Hungle
208 x 8
16 x 8
3840 + 128 (half size)
8
11 x 12
External resistor (150 kHz)
External
Booster off
Internal division function
HD66731
119 x 51 dots
10 characters x 4 lines
20 characters x 4 lines
(48 x 26 dots)
120
—
—
2.4 V to 5.5 V
3 V to 15 V
Clock-synchronized serial
8 bits
Impossible
1/14, 27, 40, 53
1/4 to 1/8.3
B
Double or triple
External
—
—
Display unit
Raster-row unit
—
80 x 8
507 k + 9 k
JIS Level-1 Kanji Set,
Hungle
208 x 8
16 x 8
3840 + 128 (half size)
8
11 x 12
External resistor (150 kHz)
External
Booster off
Internal division function
HD66732
120 x 52 dots
10 characters x 4 lines
20 characters x 4 lines
120 x 52 dots
200
8x4
3
2.4 V to 5.5 V
4.5 V to 13 V
Clock-synchronized serial
4 bits, 8 bits
Impossible
1/2, 15, 28, 41, 54
1/2 to 1/8
B+C
Single, double, triple, or
quadruple
External
Incorporated
Incorporated
Impossible
Raster-row unit
—
80 x 8
1,048 k + 18 k
JIS Level-1 and Level-2
Kanji Set
780 x 8
60 x 8
8128 + 256 (half size)
30
11 x 12
External resistor
(45 to 76 kHz)
External
Partial display off
Display off
Oscillation off
Liquid crystal power off
Key wake-up interrupt
SEG, COM
—
TCP
—
Yes
221
12.68 x 4.31
100
µm
SEG/COM direction switching
QFP package
TCP package
Bare chip (without bumps)
Bumped chip
Number of pins
Chip sizes
Pad (bump) intervals
—
QFP-1420
—
Yes
—
128
7.48 x 6.46
180
µm
—
—
TCP
—
Yes
206
7.48 x 6.46
80
µm
5
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