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128x64 Graphic LCD Display, 128x64 LCD Module

Model No. WG12864B

►128x64 Graphic LCD Display, 128x64 LCD Module
►IC: NT7107, NT7108
►+5V power supply
►1/64 duty cycle
►Built-in negative voltage
►WG12864S: Chinese built-in
►WG12864BP1:+3.3V option
►Interface: 6800


WG12864B is a mono 128x64 graphic LCD display, diagonal size 2.4 inch. WG12864A model is built in with NT7108 controller or equivalent IC; it supports 6800 8-bit parallel interface.  This WG12864B 128x64 LCD module is 5V power supply.  If you need negative voltage 3.3V power supply, please choose WG12864BP1.  This 12864 Graphic LCD module is available for without backlight or with LED backlight options. WG12864B is available in various LCD panel colors including gray, yellow/green and blue LCD options. This model graphic LCD display can be operating at temperatures from -20℃ to +70℃; its storage temperatures range from -30℃ to +80℃.


128x64 Graphic LCD Display, 128x64 LCD Module - WG12864B
Data source ref:WG12864B-TFH-N#N


Interface Pin Function

Pin No. Symbol Level Description
1 VDD 5.0V Supply voltage for logic
2 VSS 0V Ground
3 Vo (Variable) Contrast Adjustment
4 DB0 H/L Data bus line
5 DB1 H/L Data bus line
6 DB2 H/L Data bus line
7 DB3 H/L Data bus line
8 DB4 H/L Data bus line
9 DB5 H/L Data bus line
10 DB6 H/L Data bus line
11 DB7 H/L Data bus line
12 CS1 L Select Column 1~ Column 64
13 CS2 L Select Column 65~ Column 128
14 /RST L Reset signal
15 R/W H/L H: Read (MPU←Module) , L: Write (MPU→Module)
16 D/I H/L H: Data ,  L : Instruction
17 E H Enable signal
18 NC No connection
19 A Power Supply for LED backlight  ( + )
20 K Power Supply for LED backlight  ( - )

Mechanical Data

Item Dimension Unit
Number of dots 128 x 64
Module dimension 75.0 x 52.7 x 8.9(Max) mm
View area 58.8 x 31.4 mm
Active area 55.01 x 27.49 mm
Dot size 0.40 x 0.40 mm
Dot pitch 0.43 x 0.43 mm
Duty 1/64
Backlight Type LED
IC NT7107,NT7108
Interface 6800

Absolute Maximum Ratings

Item Symbol Min Typ Max Unit
Operating Temperature TOP -20 +70
Storage Temperature TST -30 +80
Supply voltage for Logic VDD-VSS -0.3 7.0 V
Driver Supply Voltage VLCD


VDD+0.3 V

Electrical Characteristics

Item Symbol Condition Min Typ Max Unit
Supply Voltage For Logic VDD-VSS 4.5 5.0 5.5 V
Supply Voltage For LCD VDD-V0 Ta=-20℃


Input High Volt. VIH 0.7VDD VDD V
Input Low Volt. VIL 0 0.8 V
Output High Volt. VOH 2.4 V
Output Low Volt. VOL 0.4 V
Supply Current IDD VDD=5.0V 3.0 4.0 5.0 mA

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