HD44780 Hitachi Semiconductor (acquired by Renesas), HD44780 Datasheet - Page 7

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HD44780

Manufacturer Part Number
HD44780
Description
Dot Matrix Liquid Crystal Display Controller/driver
Manufacturer
Hitachi Semiconductor (acquired by Renesas)
Datasheet

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HCD44780U Pad Location Coordinates
Pad No.
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
1
2
3
4
5
6
7
8
9
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
V
M
D
RS
R/W
E
DB0
DB1
CC
X (um)
–2100
–2280
–2313
–2313
–2313
–2313
–2313
–2313
–2313
–2313
–2313
–2313
–2313
–2313
–2313
–2313
–2313
–2313
–2313
–2313
–2313
–2313
–2280
–2080
–1749
–1550
–1268
1022
1204
1454
1684
–941
–623
–304
–48
142
309
475
665
832
Coordinate
Y (um)
–1186
–1401
–1617
–1833
–2073
–2290
–2290
–2290
–2290
–2290
–2290
–2290
–2290
–2290
–2290
–2290
–2290
–2290
–2290
–2290
–2290
–2290
–2290
2313
2313
2089
1833
1617
1401
1186
–108
–323
–539
–755
–970
970
755
539
323
108
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
X (um)
–1186
–1401
–1617
2070
2260
2290
2290
2290
2290
2313
2313
2313
2313
2313
2313
2313
2313
2313
2313
2313
2313
2313
2313
2313
2313
2296
2100
1617
1401
1186
–108
–323
–539
–755
–970
970
755
539
323
108
Coordinate
HD44780U
Y (um)
–2290
–2290
–2099
–1883
–1667
–1452
–1186
–970
–755
–539
–323
–108
1186
1401
1617
1833
2095
2313
2313
2313
2313
2313
2313
2313
2313
2313
2313
2313
2313
2313
2313
2313
2313
2313
2313
108
323
539
755
970
7

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