产品叙述
WH2002M是一款20x2字符显示模组，此款的LCD面板有多种选择，例如:正显灰色、正显黄绿色、负显蓝色、还有正显与负显FSTN面板。 WH2002M内建ST7066 IC，5V电压驱动，也可改用负压3V驱动，介面为6800 4-bit/8-bit接口，背光包含多种搭配例如黄绿光、蓝光、绿光、白光、琥珀光、红光背光。 LED可由PIN1, PIN2, PIN15, PIN16 或是A/ K脚驱动。内置的ST7066 IC 有多种字库版本供客户选择，有English/Japanese, Western European, Eastern European, Scandinavian European, Cyrillic (Russian), Hebrew/Arabic等等。
规格图
产品规格
Pin功能定义
| Pin No. |
符号 |
说明 |
| 1 |
V SS |
Ground |
| 2 |
V DD |
Power supply for logic |
| 3 |
V O |
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 |
146.0 x 43.0 |
mm |
| 视域尺寸 |
123.0 x 23.0 |
mm |
| 螺丝孔 |
139.0 x 36.0 |
mm |
| 字符尺寸 |
4.84 x 9.22 |
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 |
4.50 |
V |
Display Character Address Code
| 显示位置 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
--- |
--- |
20 |
| DD RAM Address |
00 |
01 |
|
|
|
|
|
|
|
|
|
|
|
|
|
13 |
| DD RAM Address |
40 |
41 |
|
|
|
|
|
|
|
|
|
|
|
|
|
53 |
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