模块尺寸：58.0*32.0mm显示尺寸：38.0*16.0mm字符大小：2.96X5.56mm并口连接(4位并口，8位并口），SPI串口，I2C串口可选5V/3V可选LED背光，黄绿模式KS0066或兼容IC工作温度：－20度到70度2，控制器简介 LCM液晶模块HC0821采用SPLC780D1主控IC，1. 具有字符发生器ROM可显示192种字符（160个5×7点阵字符和32个5×10点阵字符，见附录一）2. 具有64个字节的自定义字符RAM，可自定义8个5×8点阵字符或4个5×11点阵字符。3. 具有80个字节的RAM。4. 标准的接口特性，适配M6800系列MPU的操作时序。 5. 低功耗、长寿命、高可靠性。3，LCM液晶模块HC0821原理框图4，尺寸图 5，接口定义 Pin Symbol Level Function 1 VSS 0V GND 2 VDD +5V Power supply for logic 3 VO - Operating voltage for lcd 4 RS H/L “H” Data, “L” Instruction code 5 R/W H/L “H” Read, “L” Write 6 E H-L Enable signal 7 DB0 H/L Data bus line 8 DB1 H/L 9 DB2 H/L 10 DB3 H/L 11 DB4 H/L 12 DB5 H/L 13 DB6 H/L 14 DB7 H/L 15 LEDA +5.0V Power supply for LED backlight 16 LEDK 0V
Pin
Symbol
Level
Function
1
VSS
0V
GND
2
VDD
+5V
Power supply for logic
3
VO
-
Operating voltage for lcd
4
RS
H/L
“H” Data, “L” Instruction code
5
R/W
“H” Read, “L” Write
6
E
H-L
Enable signal
7
DB0
Data bus line
8
DB1
9
DB2
10
DB3
11
DB4
12
DB5
13
DB6
14
DB7
15
LEDA
+5.0V
Power supply for LED backlight
16
LEDK