Character LCD Display 20x2

Model No. RC2002B

The RC2002B is a 20x2 Character LCD module with a compact 89.0 × 21.5 × 9.0 mm design. It features a clear 75.0 × 15.0 mm viewing area, LED backlight, and is driven by the ST7066U controller IC with a standard 68-series interface, ensuring easy integration into embedded systems.

Operating from -20°C to +70°C with a wide storage range of -30°C to +80°C, the RC2002B delivers stable performance and low power consumption. It is well-suited for control panels, instrumentation, and other text-based display applications.

Contact us today to learn more about the RC2002B and how it can support your display needs.

Data Source Ref：RC2002B-BIW-JSX

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General Specs
Interface Pin Function
Contour Drawing
Absolute Maximum Ratings
Electrical Characteristics

Item	Dimension	Unit
Structure	COB
Size (Diagonal)	2.73	inch
Dot Matrix / Resolution	5×8 dots includes cursor	dots
Characters × Lines	20 Characters × 2 Lines
Module Dimension	89.0 × 21.5 × 9.64 (MAX)	mm
Viewing Area	75.0 × 15.0	mm
Active Area	68.5 × 10.7	mm
Mounting Hole	86.0 × 15.5	mm
Dot / Pixel Size	0.55 × 0.60	mm
Dot / Pixel Pitch	0.60 × 0.65	mm
Character Size	2.95 × 5.15	mm
Character Pitch	3.45 × 5.55	mm
IC	ST7066, Option RW1063
Interface	6800, Option SPI / I2C (RW1063 IC)
Power Supply	5V (Also available for 3V) Negative voltage optional for 3V power supply
Duty	1/16 duty cycle
Type	Character LCD Display
Feature	LED can be driven by PIN17, PIN18

Pin No.	Symbol	Level	Description
1	NC	-	No connection
2	NC	-	No connection
3	V_SS	0V	Ground
4	V_DD	5.0V	Supply Voltage for logic
5	V_O	(Variable)	Operating voltage for LCD
6	RS	H/L	H: DATA, L: Instruction code
7	R/W	H/L	H: Read (Module --> MPU) L: Write(MPU --> Module)
8	E	H,H→L	Chip enable signal
9	DB0	H/L	Data bus line
10	DB1	H/L	Data bus line
11	DB2	H/L	Data bus line
12	DB3	H/L	Data bus line
13	DB4	H/L	Data bus line
14	DB5	H/L	Data bus line
15	DB6	H/L	Data bus line
16	DB7	H/L	Data bus line
17	VLED+	-	Power supply for B/L+
18	VLED-	-	Power supply for B/L-
19	NC	-	No connection
20	NC	-	No connection

RC2002B Character LCD - Raystar - Contour Drawing

Item	Symbole	Min	Typ	Max	Unit
Operating Temperature	TOP	-20	-	+70	℃
Storage Temperature	TST	-30	-	+80	℃
Input Voltage	VI	VSS	-	VDD	V
Supply Voltage For Logic	VDD-VSS	-0.3	-	7	V
Supply Voltage For LCD	VDD-Vo	-0.3	-	13	V

Item	Symbole	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℃	-	-	5.2	V
		Ta=25℃	4.1	4.2	4.3	V
		Ta=70℃	3.6	-	-	V
Input High Volt	VIH	-	0.7 VDD	-	VDD	V
Input Low Volt	VIL	-	Vss	-	0.6	V
Output High Volt	VOH	-	3.9	-	VDD	V
Output Low Volt	VOL	-	0	-	0.4	V
Supply Current	IDD	VDD=5.0V	1.0	1.2	1.5	mA