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40x2 Red on Black Character LCD - Buy REDLCD40X2BL

Photograph
40 x 2 Red Character LCD Display with Backlight

Features
  • 40 Characters x 2 Lines
  • Red Characters on a Black Background
  • 5 x 8 Dots with Cursor
  • Built in Controller - ST7066U
  • +5V Power Supply
  • Backlight Included
  • RoHS Compliant


Dimensional Drawing
LCD 40x2 - Top View
LCD 40x2 - Side View and Dots Detail

Dimensions in mm


Technical Data

Electrical Characteristics

Item Symbol Condit. Min Typ Max Unit
Supply Voltage for LCD VDD-VO Ta=0°C, Ta=25°C, Ta=50°C 4.7 5.0 5.5 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 3.5 mA
LED Backl. - Forward Voltage Vf     4.2 5.0 V
LED Backl. - Forward Current If Vf=4.2V 25°C   300   mA

Mechanical Characteristics

Item Dimensions Unit
LCD Size 182 x 33.5 mm
Viewing Area 152.5 x 16.5 mm
Dot Size 0.60 x 0.65 mm
Dot Pitch 0.65 x 0.70 mm
Character Size 3.2 x 5.55 mm
Character Pitch 3.7 x 5.95 mm
LCD Thickness 13.5 mm

Absolute Maximum Ratings

Item Symbol Min Typ Max Units
Operating Temp. Top 0   +50 °C
Storage Temp. Tst -20   +70 °C
Input Voltage Vi Vss   Vdd V
Supply Voltage for Logic Vdd-Vss 2.7 5.0 5.5 V
Supply Voltage for LCD Vdd-Vo 3.0   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 00 01 02 03 04 05 06 07 08 09
DD RAM Address - Row 2 40 41 42 43 44 45 46 47 48 49

Display Position 11 12 13 14 15 16 17 18 19 20
DD RAM Address - Row 1 0A 0B 0C 0D 0E 0F 10 11 12 13
DD RAM Address - Row 2 4A 4B 4C 4D 4E 4F 50 51 52 53

Display Position 21 22 23 24 25 26 27 28 29 30
DD RAM Address - Row 1 14 15 16 17 18 19 1A 1B 1C 1D
DD RAM Address - Row 2 54 55 56 57 58 59 5A 5B 5C 5D

Display Position 31 32 33 34 35 36 37 38 39 40
DD RAM Address - Row 1 1E 1F 20 21 22 23 24 25 26 27
DD RAM Address - Row 2 5E 5F 60 61 62 63 64 65 66 67


Datasheet

Datasheet

REDLCD40X2BL - Datasheet for ST7066U Datasheet

Application Notes