ST7290 Graphical LCD Module (128x64px)

Pin Configuration

Pin No.	Pin Name	Description
1	Gnd	Ground terminal
2	Vcc	Positive Input Voltage terminal
3	Vo	LCD contrast
4	RS	Register Select RS = 0: Instruction Register RS = 1: Register Read
5	R/W	Read/Write control
6	E	Enable
7	DB0
8	DB1
9	DB2
10	DB3	Data Pins for 8/4 bit Parallel mode
11	DB4
12	DB5
13	DB6
14	DB7
15	PSB	Interface selection: Low(0) - serial communication mode High (1) - 8/4-bit parallel bus mode.
16	NC	Not connected
17	RST	Reset
18	Vout	LCD电压加倍输出。vout≦7V。
19	BLA	背光正供应
20	BLK	Backlight Negative supply

Features and Specification

• Operating Voltage: 5V
• Viewing angle: 6 ‘o’ clock
• MCU I/F: Serial or 8-bit parallel
• Display Color: Blue
• ST7290 LCD controller/driver IC
• 低功耗
• Automatic power on Reset
• Graphic and Character mix modes display
• Built-in Voltage booster
• Display Construction: 128*64 dots
• Display Mode: STN
• Type: Chip On Board (COB)

Note:Complete technical details can be found in theST7290 GLCD数据表linked at the bottom of this page.

Block Diagram

The image below shows the block diagram orinternal structure of Graphical LCD。我们的控制器ed for the LCD isST7290 LCD controller。

Where Graphical LCD are used?

Agraphical LCDcan be used in various electronic equipment where we need to display some character or image. Basically, these type of display used in medical, hand-held, security or industrial equipment. Also, Graphical LCD are used in variouselectronic DIY projects。It’s easy to interface it with micro-controller,Arduinoand other controllers.

How to Use ST7290 GLCD?

There are two mode of interface in Graphical LCD:

1. Serial Mode
2. 8/4-bit Mode

Serial Mode:

To use in serial mode, you just have to ground PSB Pin which change the interface of Graphical LCD into serial as shown in image below:

8/4-bit Mode:

To use in 8/4- bit Mode, you just have to connect the PSB to positive supply or 5v, which change the interface into parallel mode as shown in image below:

Graphical LCD with Arduino

如在各种电子项目中所使用的那样，通常我们使用Arduino将图形LCD接口。当您使用带有Arduino的图形LCD时，我建议您在串行模式下使用它，这将减少NO的使用。针。以下电路图将帮助您在串行模式下将图形LCD与Arduino连接。

Applications

• Industrial devices
• Embedded Systems
• Security
• Medical
• Hand-held equipment

2D-model