Pin功能定义
| Pin No. |
符号 |
说明 |
| 1 |
VSS |
Ground |
| 2 |
VDD |
Power supply for logic |
| 3 |
VO |
Contrast Adjustment |
| 4 |
RS |
Data/ Instruction select signal |
| 5 |
R/W |
Read/Write select signal |
| 6 |
E |
Enable signal |
| 7~14 |
DB0~DB7 |
Data bus line |
| 15 |
A |
Power supply for B/L + |
| 16 |
K |
Power supply for B/L - |
规格说明
| 项目 |
标准尺寸 |
单位 |
| 模块尺寸 |
87.0 x 58.0 |
mm |
| 视域尺寸 |
74.4 x 24.8 |
mm |
| 螺丝孔 |
82.0 x 53.0 |
mm |
| 字符尺寸 |
2.95 x 4.75 |
mm |
电气特性
| 项目 |
符号 |
标准值（典型值） |
单位 |
| 输入电压 |
VDD |
3/5 |
V |
| 常温25°；C LCD驱动电压建议值 |
VDD-VO |
4.20 |
V |
显示字元的位置代码
| 显示位置 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
20 |
| DD RAM Address |
00 |
01 |
02 |
03 |
04 |
05 |
06 |
07 |
08 |
09 |
0A |
0B |
0C |
0D |
0E |
0F |
10 |
11 |
12 |
13 |
| DD RAM Address |
40 |
41 |
42 |
43 |
44 |
45 |
46 |
47 |
48 |
49 |
4A |
4B |
4C |
4D |
4E |
4F |
50 |
51 |
52 |
53 |
| DD RAM Address |
14 |
15 |
16 |
17 |
18 |
19 |
1A |
1B |
1C |
1D |
1E |
1F |
20 |
21 |
22 |
23 |
24 |
25 |
26 |
27 |
| DD RAM Address |
54 |
55 |
56 |
57 |
58 |
59 |
5A |
5B |
5C |
5D |
5E |
5F |
60 |
61 |
62 |
63 |
64 |
65 |
66 |
67 |
Search Keyword: 20x4 lcd, 20 x 4 lcd, lcd 20x4, lcd 20 x 4
