DataSheet8.cn


PDF ( 数据手册 , 数据表 ) 44780

零件编号 44780
描述 Dot Matrix Liquid Crystal Display Controller/Driver
制造商 Hitachi Semiconductor
LOGO Hitachi Semiconductor LOGO 


1 Page

No Preview Available !

44780 数据手册, 描述, 功能
HD44780U (LCD-II)
(Dot Matrix Liquid Crystal Display Controller/Driver)
Description
The HD44780U dot-matrix liquid crystal display controller and driver LSI displays alphanumerics,
Japanese kana characters, and symbols. It can be configured to drive a dot-matrix liquid crystal display
under the control of a 4- or 8-bit microprocessor. Since all the functions such as display RAM, character
generator, and liquid crystal driver, required for driving a dot-matrix liquid crystal display are internally
provided on one chip, a minimal system can be interfaced with this controller/driver.
A single HD44780U can display up to one 8-character line or two 8-character lines.
The HD44780U has pin function compatibility with the HD44780S which allows the user to easily
replace an LCD-II with an HD44780U. The HD44780U character generator ROM is extended to generate
208 5 × 8 dot character fonts and 32 5 × 10 dot character fonts for a total of 240 different character fonts.
The low power supply (2.7V to 5.5V) of the HD44780U is suitable for any portable battery-driven
product requiring low power dissipation.
Features
5 × 8 and 5 × 10 dot matrix possible
Low power operation support:
2.7 to 5.5V
Wide range of liquid crystal display driver power
3.0 to 11V
Liquid crystal drive waveform
A (One line frequency AC waveform)
Correspond to high speed MPU bus interface
2 MHz (when VCC = 5V)
4-bit or 8-bit MPU interface enabled
80 × 8-bit display RAM (80 characters max.)
9,920-bit character generator ROM for a total of 240 character fonts
208 character fonts (5 × 8 dot)
32 character fonts (5 × 10 dot)
167







44780 pdf, 数据表
HD44780U
HCD44780U Pad Location Coordinates
Pad No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Function
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
GND
OSC1
OSC2
V1
V2
V3
V4
V5
CL1
CL2
VCC
M
D
RS
R/:
E
DB0
DB1
Coordinate
X (um)
Y (um)
–2100
2313
–2280
2313
–2313
2089
–2313
1833
–2313
1617
–2313
1401
–2313
1186
–2313
970
–2313
755
–2313
539
–2313
323
–2313
108
–2313
–108
–2313
–323
–2313
–539
–2313
–755
–2313
–970
–2313
–1186
–2313
–1401
–2313
–1617
–2313
–1833
–2313
–2073
–2280
–2290
–2080
–2290
–1749
–2290
–1550
–2290
–1268
–2290
–941
–2290
–623
–2290
–304
–2290
–48 –2290
142 –2290
309 –2290
475 –2290
665 –2290
832 –2290
1022
–2290
1204
–2290
1454
–2290
1684
–2290
Pad No.
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
Function
DB2
DB3
DB4
DB5
DB6
DB7
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
COM9
COM10
COM11
COM12
COM13
COM14
COM15
COM16
SEG40
SEG39
SEG38
SEG37
SEG36
SEG35
SEG34
SEG33
SEG32
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
Coordinate
X (um)
Y (um)
2070
–2290
2260
–2290
2290
–2099
2290
–1883
2290
–1667
2290
–1452
2313
–1186
2313
–970
2313
–755
2313
–539
2313
–323
2313
–108
2313
108
2313
323
2313
539
2313
755
2313
970
2313
1186
2313
1401
2313
1617
2313
1833
2313
2095
2296
2313
2100
2313
1617
2313
1401
2313
1186
2313
970 2313
755 2313
539 2313
323 2313
108 2313
–108
2313
–323
2313
–539
2313
–755
2313
–970
2313
–1186
2313
–1401
2313
–1617
2313
174







44780 equivalent, schematic
HD44780U
Programming character patterns
This section explains the correspondence between addresses and data used to program character
patterns in EPROM. The HD44780U character generator ROM can generate 208 5 × 8 dot character
patterns and 32 5 × 10 dot character patterns for a total of 240 different character patterns.
Character patterns
EPROM address data and character pattern data correspond with each other to form a 5 × 8 or 5 ×
10 dot character pattern (Tables 2 and 3).
Table 2
Example of Correspondence between EPROM Address Data and Character Pattern
(5 × 8 Dots)
EPROM Address
Data
LSB
A 1 1A 1 0 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 O 4 O3 O2 O1 O0
0000 1 0 0 0 0
0001 1 0 0 0 0
0010 1 0 1 1 0
0011 1 1 0 0 1
0100 1 0 0 0 1
0101 1 0 0 0 1
0110 1 1 1 1 0
011000100111 0 0 0 0 0
1000 0 0 0 0 0
1001 0 0 0 0 0
1010 0 0 0 0 0
1011 0 0 0 0 0
1100 0 0 0 0 0
1101 0 0 0 0 0
1110 0 0 0 0 0
1111 0 0 0 0 0
Character code
Line
position
Cursor position
Notes: 1. EPROM addresses A11 to A4 correspond to a character code.
2. EPROM addresses A3 to A0 specify a line position of the character pattern.
3. EPROM data O4 to O0 correspond to character pattern data.
4. EPROM data O5 to O7 must be specified as 0.
5. A lit display position (black) corresponds to a 1.
6. Line 9 and the following lines must be blanked with 0s for a 5 × 8 dot character fonts.
182










页数 30 页
下载[ 44780.PDF 数据手册 ]


分享链接

Link :

推荐数据表

零件编号描述制造商
44780Dot Matrix Liquid Crystal Display Controller/DriverHitachi Semiconductor
Hitachi Semiconductor

零件编号描述制造商
STK15C88256-Kbit (32 K x 8) PowerStore nvSRAMCypress Semiconductor
Cypress Semiconductor
NJM4556DUAL HIGH CURRENT OPERATIONAL AMPLIFIERNew Japan Radio
New Japan Radio
EL1118-G5 PIN LONG CREEPAGE SOP PHOTOTRANSISTOR PHOTOCOUPLEREverlight
Everlight


DataSheet8.cn    |   2020   |  联系我们   |   搜索  |  Simemap