UC2004B is Big Font 20x4 characters LCD Module (LCM) made using Chip on Board (COB) method and comes with metal frame.

Character size is (4.84x9.22) mm.

Module dimension of UC2004B is (146x62.5) mm and viewing area is (123.5x43) mm.

It has built-in controller ST7066 (or equivalent) that provides different language options, English, Japanese, Chinese, Western & Eastern European, Russian etc.

It is available without backlight or with LED, EL backlight options.

UC2004B LCD module is available in gray, yellow/green and blue LCD color.

Item	Dimension	Unit
Module dimension	146.0 × 62.5	mm
View Area(AA)	123.5 × 43.0	mm
Dot size	0.92 × 1.1	mm
Character Size	4.84 x 9.22	mm

 

Electrical Characteristics  (Ta=25±2°C)

Item	Symbol	Condition	Typical Value	Unit
Input Voltage	Vdd	Vdd = +5V	5.0	V
Supply Current	Idd	Vdd = +5V	1.6	mA
LCD Driving Voltage	Vdd-Vo	25°C	4.2	V
LED Forward Voltage (yellow-green)	Vf	25°C	4.2	V
LED Forward Current	If	25°C	540	mA
EV Power Voltage	Vel	Vel=110Vac/400Hz		V

Pin	Symbol	Function
1	Vss	GND
2	Vdd	+5V (+3V option)
3	Vo	Contrast adjustment
4	RS	H/L register select signal
5	R/W	H/L read/write signal
6	E	H --> L enable signal
7~14	DB0~7	H/L data bus line
15	A	Power Supply for B/L(+)
16	K	Power supply for B/L (GND)
17	NC/Vee	NC/Negative voltage output
18	NC	No connection