Home Products Graphic LCD WG12864J3

Monochrome 128x64 Graphic Dot Matrix LCD Display

Model No. WG12864J3

►Graphic LCD 128x64
►IC: ST7920
►+3.3V power supply
►1/64 duty cycle
►Internal boost option
►Chinese version
►Interface: 6800/SPI

Description

WG12864J3 is a monochrome 128x64 graphic dot matrix LCD display module; diagonal size 2.9 inch.  This 128x64 graphic LCD display is built in with ST7920 controller IC which supports Traditional Chinese and Simplified Chinese Font.  WG12864J3 supports 6800 8-bit parallel and SPI interface, 3.3V power supply and internal boost on module.  This module can be operating at temperatures from -20℃ to +70℃; its storage temperatures range from -30℃ to +80℃. 

DRAWING

Winstar 128x64 Graphic Dot LCD Display - WG12864J3
Data source ref:WG12864J3-TFH-V#T

SPECIFICATIONS

Interface Pin Function

Pin No. Symbol Level Description
1 VSS 0V Ground
2 VDD 3.3V Supply voltage for logic
3 VO Supply voltage for LCD
4 RS H/L H: Data ,  L : Instruction
5 R/W H/L H: Read (Module --> MPU) L: Write(MPU --> Module)
6 E H/L Enable signal
7 DB0 H/L Data bus line
8 DB1 H/L Data bus line
9 DB2 H/L Data bus line
10 DB3 H/L Data bus line
11 DB4 H/L Data bus line
12 DB5 H/L Data bus line
13 DB6 H/L Data bus line
14 DB7 H/L Data bus line
15 A Power Supply for LED backlight  ( + )
16 K Power Supply for LED backlight  ( - )
17 RST H/L Reset LCM
18 Vout Positive voltage for LCD

Mechanical Data

Item Dimension Unit
Number of dots 128 x 64
Module dimension 93.0 x 70.0 x 13.6(Max) mm
View area 72.0 x 40.0 mm
Active area 66.52 x 33.24 mm
Dot size 0.48 x 0.48 mm
Dot pitch 0.52 x 0.52 mm
Duty 1/32
Backlight Type LED
IC ST7920
Interface 6800

Absolute Maximum Ratings

Item Symbol Min Typ Max Unit
Operating Temperature TOP -20 +70
Storage Temperature TST -30 +80
Input Voltage VIN -0.3 VDD+0.3 V
Supply voltage for Logic VDD-VSS -0.3 5.5 V
Supply voltage for LCD VO-VSS 0 7.0 V

Electrical Characteristics

Item Symbol Condition Min Typ Max Unit
Supply Voltage For Logic VDD-VSS 3.0 3.3 3.6 V
Supply Voltage For LCD V0-VSS Ta=-20℃
Ta=25℃
Ta=70℃

4.4

4.6

4.8
V
V
V
Input High Volt. VIH 0.7VDD VDD V
Input Low Volt. VIL -0.3 0.6 V
Output High Volt. VOH 0.8VDD VDD V
Output Low Volt. VOL 0.1 V
Supply Current IDD VDD=3.3V 2.6 3.0 mA


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