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20 x 4 Character LCD Display with Backlight Technical Data

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20 x 4 Character LCD Display with Backlight

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
LCD 20x4 - Top View
LCD 20x4 - Side View
LCD 20x4 - Character Dimensions

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

Item Dimensions Unit
LCD Size 98 x 60 mm
Viewing Area 77 x 25 mm
Dot Size 0.55 x 0.55 mm
Dot Pitch 0.60 x 0.60 mm
Character Size 2.95 x 4.75 mm
Character Pitch 3.55 x 5.35 mm
LCD Thickness 14 mm

Absolute Maximum Ratings

Item Symbol Min Typ 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 Datasheet

Application Notes