20 x 4 Character LCD Display with Backlight Technical Data

Buy LCD20X4BL

Photograph

Features

20 Characters x 4 Lines

5 x 8 Dots with Cursor

Built in Controller (HD44780 or equivalent)

+5V Power Supply

1/16 Duty Circle

RoHS Compliant

Dimensional Drawing
Dimensions in mm

Technical Data

Electrical Characteristics

Item	Symbol	Condit.	Min	Typ	Max	Units
Supply Voltage for LCD	VDD-VO	Ta=0°C, Ta=25°C, Ta=50°C		4.5		V
Input High Voltage	VIH		2.2		VDD	V
Input Low Voltage	VIL		0.3		0.6	V
Output High Voltage	VOH		2.4			V
Output Low Voltage	VOL				0.4	V
Supply Current	IDD	VDD=5V		2.5	4.0	mA

Mechanical Characteristics

Absolute Maximum Ratings

Item	Symbol	Min	Max	Units
Operating Temp.	Top	0	+50	°C
Storage Temp.	Tst	-10	+60	°C
Input Voltage	Vi	Vss	Vdd	V
Supply Voltage for Logic	Vdd-Vss	-0.3	7.0	V
Supply Voltage for LCD	Vdd-Vo	-0.3	13.0	V

Interface Pin Connections

Pin No	Symbol	Level	Function
1	Vss		GND(0V)
2	Vdd		Vcc(+5V±5%)
3	Vo		Contrast Adjust
4	RS	H/L	Register Select
5	R/W	H/L	Read/Write
6	E	H/L	Enable Signal
7	DB0	H/L	Data Bit 0
8	DB1	H/L	Data Bit 1
9	DB2	H/L	Data Bit 2
10	DB3	H/L	Data Bit 3
11	DB4	H/L	Data Bit 4
12	DB5	H/L	Data Bit 5
13	DB6	H/L	Data Bit 6
14	DB7	H/L	Data Bit 7
15	LEDA	BKL+	Backlight - Positive
16	LEDK	BKL-	Backlight - Negative

Display Character Address Code

Display Position	1	2	3	4	5	6	7	8	9	10
DD RAM Address - Row 1	80	81	82	83	84	85	86	87	88	89
DD RAM Address - Row 2	C0	C1	C2	C3	C4	C5	C6	C7	C8	C9
DD RAM Address - Row 3	94	95	96	97	98	99	9A	9B	9C	9D
DD RAM Address - Row 4	D4	D5	D6	D7	D8	D9	DA	DB	DC	DD

Display Position	11	12	13	14	15	16	17	18	19	20
DD RAM Address - Row 1	8A	8B	8C	8D	8E	8F	90	91	92	93
DD RAM Address - Row 2	CA	CB	CC	CD	CE	CF	D0	D1	D2	D3
DD RAM Address - Row 3	9E	9F	A0	A1	A2	A3	A4	A5	A6	A7
DD RAM Address - Row 4	DE	DF	E0	E1	E2	E3	E4	E5	E6	E7

Datasheet

Datasheet

LCD20X4 - Datasheet for HD44780

Application Notes