144×32 Graphic LCD Module

Model No. WG14432A3/A5

Graphic LCD 144×32
IC: ST7920
WG14432A3:+3.3V power supply / WG14432A5:+5V power supply
Internal boost option
1/32 duty cycle
LED can be driven by PiN15, PIN16 or A, K
Chinese version
Same size as WH1602C
Interface: default 6800; optional SPI

Category: Graphic LCD

Description

WG14432A3/WG14432A5 is a monochrome 144×32 graphics LCD module which is built in with ST7920 controller IC. WG14432A3/A5 is having the same mechanical size as Character WH1602C. This WG14432A module supports 6800 parallel and SPI interface; +3.3V/+5V power supply, also internal boost 3.3V optional. This 144×32 graphic LCD display supports Traditional Chinese and Simplified Chinese Font. It can be operating at temperatures from -20℃ to +70℃; its storage temperatures range from -30℃ to +80℃.

Drawing

Data source ref: WG14432A3-YGH-V#T

Specifications

Interface Pin Function

Pin No.	Symbol	Level	Description
1	VSS	0V	GND
2	VDD	3.3V	Power Supply
3	NC	－	No connection
4	RS	H/L	H: Data , L : Instruction
5	R/W	H/L	H: Read (MPU←Module) , 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 B/L +
16	K	－	Power supply for B/L –

Mechanical Data

Item	Dimension	Unit
Number of dots	144 x 32	－
Module dimension	85.0 x 36.0 x 13.2 (MAX)	mm
View area	66.0 x 16.0	mm
Active area	60.44 x 13.4	mm
Dot size	0.38 x 0.38	mm
Dot pitch	0.42 x 0.42	mm
Duty	1/32
Backlight Type	LED
IC	ST7920

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℃	－－－	－－－	－－－	V V V
Input High Volt.	VIH	－	0.7VDD	－	VDD	V
Input Low Volt.	VIL	－	-0.3	－	0.6	V
Output High Volt.	VOH	－	0.8 VDD	－	VDD	V
Output Low Volt.	VOL	－	0	－	0.1	V
Supply Current	IDD	VDD=3.3V	1.6	2.2	3.5	mA

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